2014 Microchip Technology Inc. DS50002300A
UCS81003
Evaluation Board
User’s Guide
DS50002300A-page 2 2014 Microchip Technology Inc.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
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intellectual property rights.
Note the following details of the code protection feature on Microch ip devices:
• Microchip products meet the specification contained in their particular Microchip Data Sheet.
• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
• Microchip is willing to work with the customer who is concerned about the integrity of their code.
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
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Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperiph erals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
QUALITY MANAGEMENT S
YSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, flexPWR, JukeBlox, KEELOQ, KEELOQ logo, Kleer,
LANCheck, MediaLB, MOST, MOST logo, MPLAB,
OptoLyzer, PIC, PICSTART, PIC32 logo, RightTouch, SpyNIC,
SST, SST Logo, SuperFlash and UNI/O are registered
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
The Embedded Control Solutions Company and mTouch are
registered trademarks of Microchip Technology Incorporated
in the U.S.A.
Analog-for-the-Digital Age, BodyCom, chipKIT, chipKIT logo,
CodeGuard, dsPICDEM, dsPICDEM.net, ECAN, In-Circuit
Serial Programming, ICSP, Inter-Chip Connectivity, KleerNet,
KleerNet logo, MiWi, MPASM, MPF, MPLAB Certified logo,
MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code
Generation, PICDEM, PICDEM.net, PICkit, PICtail,
RightTouch logo, REAL ICE, SQI, Serial Quad I/O, Total
Endurance, TSHARC, USBCheck, VariSense, ViewSpan,
WiperLock, Wireless DNA, and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.
GestIC is a registered trademarks of Microchip Technology
Germany II GmbH & Co. KG, a subsidiary of Microchip
Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2014, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
ISBN: 978-1-63276-598-7
UCS81003 Evaluation Board User’s Guide
2014 Microchip Technology Inc. DS50002300A-page 3
Object of Declaration: UCS81003 Evaluation Board
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 4 2014 Microchip Technology Inc.
NOTES:
UCS81003 EVALUATION BOARD
USER’S GUIDE
2014 Microchip Technology Inc. DS50002300A-page 5
Table of Contents
Preface ...........................................................................................................................7
Introduction............................................................................................................ 7
Document Layout .................................................................................................. 7
Conventions Used in this Guide ............................................................................ 8
Recommended Reading........................................................................................ 9
The Microchip Web Site ........................................................................................ 9
Customer Support ................................................................................................. 9
Document Revision History ................................................................................... 9
Chapter 1. Product Overview
1.1 Introduction ................................................................................................... 11
1.2 UCS81003 Evaluation System ..................................................................... 11
1.3 What the UCS81003 Evaluation Board Kit Contains .................................... 12
Chapter 2. Installation and Operation
2.1 Introduction ................................................................................................... 13
2.2 Connectors on the Evaluation Board ............................................................ 13
2.3 LEDs on the Evaluation Board ..................................................................... 14
2.4 Jumpers on the Evaluation Board ................................................................ 15
2.5 Data Test Points on the Evaluation Board ................................................... 17
2.6 Ground Test Points on the Evaluation Board ............................................... 18
2.7 Software Installation ..................................................................................... 19
Chapter 3. Hardware Description
3.1 UCS81003 Device ........................................................................................ 21
3.2 Evaluation Board Power Source .................................................................. 21
3.3 MCP2221 USB-to-SMBus Bridge ................................................................. 22
3.4 MCP23018 I/O expander .............................................................................. 22
3.5 Direct SMBus Connect Option ..................................................................... 22
Chapter 4. Software Description
4.1 Overview ...................................................................................................... 23
4.1.1 Tips for Using the EVB GUI ....................................................................... 24
4.1.2 GUI Abbreviations ..................................................................................... 24
4.1.3 Keyboard Shortcuts ................................................................................... 24
4.2 Interface Description and Operation ............................................................. 25
4.2.1 Panel Controls ........................................................................................... 25
4.2.2 Pin State and Attach Status Panel ............................................................ 27
4.2.3 Pin State & Attach Status Panel ................................................................ 27
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4.2.4 Active Mode Selection ...............................................................................28
4.3 Tabs Description .......................................................................................... 29
4.3.1 Main Tab ....................................................................................................29
4.3.2 Configuration and General Status Tab ......................................................33
4.3.3 Custom Charging Tab ................................................................................35
4.3.4 Register Set Tab ........................................................................................37
4.3.5 Demo Tab ..................................................................................................39
4.4 Troubleshooting ............................................................................................ 41
Appendix A. Schematic and Layouts
A.1 Introduction .................................................................................................. 43
A.2 Board – Schematic ....................................................................................... 44
A.3 Board – Top Silk .......................................................................................... 45
A.4 Board – Top Copper and Silk ....................................................................... 45
A.5 Board – Top Copper .................................................................................... 46
A.6 Board – Inner Plans GND 1 ......................................................................... 46
A.7 Board – Inner Plans GND 2 ......................................................................... 47
A.8 Board – Bottom Copper ............................................................................... 47
A.9 Board – Bottom Copper and Silk ................................................................. 48
A.10 Board – Bottom Silk ................................................................................... 48
Appendix B. Bill of Materials
Worldwide Sales and Service .....................................................................................51
UCS81003 EVALUATION BOARD
USER’S GUIDE
2014 Microchip Technology Inc. DS50002300A-page 7
Preface
INTRODUCTION
This chapter contains general information that will be useful to know before using the
UCS81003 Evaluation Board. Items discussed in this chapter include:
• Document Layout
• Conventions Used in this Guide
• Recommended Reading
• The Microchip Web Site
• Customer Support
• Document Revision History
DOCUMENT LAYOUT
This document describes how to use the UCS81003 Evaluation Board. The manual
layout is as follows:
•Chapter 1. “Product Overview” – Important information about the UCS81003
Evaluation Board.
•Chapter 2. “Installation and Operation” – Includes instructions on how to
configure the board.
•Chapter 3. “Har dwa re Desc ript ion ” – Describes the UCS81003 Evaluation
Board features and functionalities.
•Chapter 4. “Software Description” – Describes the PC Graphical User Interface
that operates the UCS81003 Evaluation Board.
•Appendix A. “Schematic and Layouts” – Shows the schematic and layout
diagrams for the UCS81003 Evaluation Board.
•Appendix B. “Bill of Materials” – Lists the parts used to build the UCS81003
Evaluation Board.
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs
and/or tool descriptions may differ from those in this document. Please refer to our web site
(www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXXXXA”, where “XXXXXXXX” is the document number and “A” is the revision level
of the document.
For the most up-to-date information on development tools, see the MPLAB® IDE online help.
Select the Help menu, and then Topics to open a list of available online help files.
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 8 2014 Microchip Technology Inc.
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description Represents Examples
Arial font:
Italic characters Referenced books MPLAB® IDE User’s Guide
Emphasized text ...is the only compiler...
Initial caps A window the Output window
A dialog the Settings dialog
A menu selection select Enable Programmer
Quotes A field name in a window or
dialog
“Save project before build”
Underlined, italic text with
right angle bracket
A menu path File>Save
Bold characters A dialog button Click OK
A tab Click the Power tab
N‘Rnnnn A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
4‘b0010, 2‘hF1
Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>
Courier New font:
Plain Courier New Sample source code #define START
Filenames autoexec.bat
File paths c:\mcc18\h
Keywords _asm, _endasm, static
Command-line options -Opa+, -Opa-
Bit values 0, 1
Constants 0xFF, ‘A’
Italic Courier New A variable argument file.o, where file can be
any valid filename
Square brackets [ ] Optional arguments mcc18 [options] file
[options]
Curly brackets and pipe
character: { | }
Choice of mutually exclusive
arguments; an OR selection
errorlevel {0|1}
Ellipses... Replaces repeated text var_name [,
var_name...]
Represents code supplied by
user
void main (void)
{ ...
}
Preface
2014 Microchip Technology Inc. DS50002300A-page 9
RECOMMENDED READING
This user's guide describes how to use UCS81003 Evaluation Board. Other useful
documents are listed below. The following Microchip documents are available and
recommended as supplemental reference resources.
• UCS81003 Data Sheet - “Automotive USB Port Power Controller with
Charger Emulation” (DS20005334)
• MCP2221 Data Sheet - “USB 2.0 to I2C™/UART Protocol Converter with
GPIO” (DS200005292)
• AN24.14 - “UCS1002 Fundamentals of Custom Cha rger Emulation”
(DS200005234)
THE MICROCHIP WEB SITE
Microchip provides online support via our web site at www.microchip.com. This web
site is used as a means to make files and information easily available to customers.
Accessible by using your favorite Internet browser, the web site contains the following
information:
•Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software
•General Technical Support – Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, Microchip consultant program
member listing
•Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, listings of Microchip sales offices,
distributors and factory representatives
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels:
• Distributor or Representative
• Local Sales Office
• Field Application Engineer (FAE)
• Technical Support
Customers should contact their distributor, representative or field application engineer
(FAE) for support. Local sales offices are also available to help customers. A listing of
sales offices and locations is included in the back of this document.
Technical support is available through the web site at:
http://www.microchip.com/support.
DOCUMENT REVISION HISTORY
Revision A (September 2014)
• Initial Release of this Document.
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 10 2014 Microchip Technology Inc.
NOTES:
UCS81003 EVALUATION
BOARD USER’S GUIDE
2014 Microchip Technology Inc. DS50002300A-page 11
Chapter 1. Product Overview
1.1 INTRODUCTION
This document provides a description of the software and hardware used to evaluate
the features of the UCS81003.
1.2 UCS810 03 EVA LUA TION SYSTEM
The evaluation system has several components, as shown in Figure 1-1:
• Customer-provided Windows® PC
• UCS81003 graphical user interface (GUI) program
• UCS81003 Evaluation Board
• USB Cable for GUI communications (Standard-A plug to mini-B plug)
• 5V power source (VS)
• Customer-provided portable device and OEM USB charging cable
(with Standard-A plug at board’s end)
FIGURE 1-1: UCS81003 Evaluation System.
Portable
Device
PC running UCS81003 GUI
UCS81003
Device
UCS81003 Evaluation Board
OEM USB
Charging Cable
VS
Cable
USB Cable
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 12 2014 Microchip Technology Inc.
A block diagram of the UCS81003 Evaluation Board is shown in Figure 1-2 below:
FIGURE 1-2: UCS81003 Evaluation Board Block Diagram.
1.3 WHAT THE UCS81003 EVALUATION BOARD KIT CONTAINS
This UCS81003 Evaluation Board kit includes:
• UCS81003 Evaluation Board (ADM00561)
• Important Information Sheet
• 5V AC-DC Wall Adapter
• Standard-A plug to mini-B plug USB Cable
USB STD-A PLUG
(Data & Power
From Host)
AUX Input (Power)
UCS81003
USB STD-A
RECPT
(To Portable
Device)
USB Bridge
MCP2221
USB MINI-B
RECPT
Control/Status
Manual/Bridge
Configuration &
Status
UCS81003 EVALUATION
BOARD USER’S GUIDE
2014 Microchip Technology Inc. DS50002300A-page 13
Chapter 2. Installation and Operation
2.1 INTRODUCTION
This chapter identifies the main connectors, LEDs, jumpers and test points that can be
found on the UCS81003 Evaluation Board. It also explains the steps to install the
board’s graphical user interface.
2.2 CONNECTORS ON THE EVALUATION BOARD
Figure 2-1 shows the top of the evaluation board and highlights the connectors.
FIGURE 2-1: UCS81003 Evaluation Board Top View – Connectors.
TABLE 2-1: CONNECTOR DESCRIPTIONS
Designator Connector Type Description
J1 Power jack External 5V power supply
J2 USB Mini-B receptacle This connects the board to the PC with the GUI software
J3 USB Standard-A plug This connects the evaluation board to the USB host
J10 Right-Angle USB Standard-A
receptacle
This connects the board to the portable device
J2
USB Mini-B
receptacle
to PC
J10
USB Standard-A receptacle
to portable device
J3
USB Stanadrd-A plug to
USB host / USB Power
J1
Auxiliary power connector
to external power supply
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 14 2014 Microchip Technology Inc.
2.3 LEDS ON THE EVALUATION BOARD
Figure 2-2 shows the top of the Evaluation Board and highlights the LEDs.
FIGURE 2-2: Evaluation Board Top View – LEDs.
LED4
Attach Detection (green)
LED1
USB_OK
(green)
LED3 ALERT
(red)
LED2
SMBus Activity
(red)
TABLE 2-2: LED DESCRIPTIONS
Designator Function Description
LD1 USB OK When lit, this green LED means the MCP2221 USB
bridge is connected to the PC.
LD2 SMBus Activity When flashing, this green LED indicates SMBus
communication activity.
LD3 ALERT# When lit, this red LED indicates an alert signal is active.
LD4 A_DET# When lit, this green LED indicates a device is attached
for the UCS81003.
Installation and Op eration
2014 Microchip Technology Inc. DS50002300A-page 15
2.4 JUMPERS ON THE EVAL UATION BOARD
Figure 2-3 shows the top of the Evaluation Board and highlights the jumpers.
FIGURE 2-3: Evaluation Board Top View – Jumpers.
TABLE 2-3: JUMPER DESCRIPTIONS
Designator Function Jumper
Position Description
J4 VDD source selection The jumper populated on this header selects the VDD
supply source for the digital circuits on the board.
1-2 VDD is connected to VBUS pin of the J2 USB connector
2-3 VDD is connected to VS. This is the recommended
configuration when evaluating the Attach Detection feature
of the UCS81003. If the board is evaluated with a PC
running the GUI, then the VS must be supplied after the
USB cable is plugged into the J2 connector.
J16
Current Limit,
SMBus mode
J18
Current Limit,
Stand-Alone mode
J8
Connects
UCS81003 V
BUS
output to J10
J9
PWR_EN,
EM_EN,
M1, M2
J17
Address Selection,
PWR_EN Active Low
J19
Address Selection,
PWR_EN Active High
J6
LATCH,
S0
J7
SMBus
data,
clock
J5
V
S
source
selection:
5V from J1 or
from J3 V
BUS
J4
VDD source
selection:
Vs or
V
BUS
from J2
J1
J2
J3 J10
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DS50002300A-page 16 2014 Microchip Technology Inc.
J5 VS source selection The jumper populated on this header selects the voltage
input source for the power switch inside the UCS81003.
1-2 VS source is the J1 power connector (external 5V power
supply).
2-3 VS is connected to VBUS of the J3 USB connector. Use this
configuration only if the USB host can deliver the necessary
current for charging.
J6 LATCH, S0
Logic Inputs settings
The jumpers must be left off for SMBus communication to
be enabled.
If the UCS81003 is in Stand-Alone mode (as selected by
using J18 instead of J16), then the header pins have the
following functions:
1-2 Jumper placed S0=Logic Low - Detect Power state disabled
No jumper S0=Logic High - Detect Power state enabled
3-4 Jumper placed LATCH=Logic Low - “Auto-retry” fault
handler enabled
No jumper LATCH=Logic High - “Latch” fault handler
enabled
J7 SMBus data and clock lines If the UCS81003 is in SMBus mode (as selected by using
J16 instead of J18), then two jumpers must be populated in
1-2 and 3-4 positions to connect the clock and data lines to
the MCP2221 USB bridge.
The jumpers must be left off if UCS81003 is in Stand-alone
mode.
J8 VBUS output connection This jumper connects the 5V pin of connector J10 to the
UCS81003 VBUS power output pins. A current probe or a
multimeter can be connected to this header for measuring
the charging current and the voltage, close to the USB
connector.
J9 PWR_EN, EM_EN, M1, M2
Logic Inputs settings
When a jumper is installed, the corresponding UCS81003
input pin will be in Logic Low state. Otherwise, the
corresponding pin will be in Logic High state.
1-2 PWR_EN
3-4 EM_EN
5-6 M1
7-8 M2
J16 Current Limit
SMBus mode
Placing one jumper on this header selects the current limit
and sets the UCS81003 in SMBus mode. In this case, no
jumper must be populated on J18 header.
J18 Current Limit
Stand-alone mode
Placing one jumper on this header selects the current limit
and sets the UCS81003 in Stand-alone mode. In this case,
no jumper must be populated on J16 header.
J17 SMBus Address
PWR_EN active low
Placing one jumper on this header selects the SMBus
address and sets the PWR_EN control to be active low. In
this case, no jumper must be populated on J19 header.
TABLE 2-3: JUMPER DESCRIPTIONS (CONTINUED)
Designator Function Jumper
Position Description
Installation and Op eration
2014 Microchip Technology Inc. DS50002300A-page 17
Note: The following headers must be populated with one jumper for the UCS81003
Evaluation Board to be functional:
• J4, J5, J8
• J16 or J18
• J17 or J19
• If UCS81003 is configured in SMBus mode (as selected by using J16 instead of J18), two
jumpers must be populated on J7 and J6 must be left unpopulated. If UCS81003 is
configured in Stand-Alone mode, the jumpers on J7 must be left off.
2.5 DATA TEST POIN TS ON THE EVALUATION BOARD
Figure 2-4 shows the top of the board and highlights the USB data line test points.
FIGURE 2-4: Evaluation Board Top View – Data Test Points.
J19 SMBus Address
PWR_EN active high
Placing one jumper on this header selects the SMBus
address and sets the PWR_EN control to be active high. In
this case, no jumper must be populated on J17 header.
TABLE 2-3: JUMPER DESCRIPTIONS (CONTINUED)
Designator Function Jumper
Position Description
TABLE 2-4:
Designator Assigned Pin Description
TP1 DP_IN This test point connects to the DPIN data line through a 1 MΩ series resistor.
TP2 DM_IN This test point connects to the DMINdata line through a 1 MΩ series resistor.
TP3 DM_OUT This test point connects to the DMOUT data line through a 1 MΩ series resistor.
TP4 DP_OUT This test point connects to the DPOUT data line through a 1 MΩ series resistor.
TP1
DP_IN
TP3
DM_OUT
TP2
DM_IN
TP4
DP_OUT
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 18 2014 Microchip Technology Inc.
2.6 GROUND TEST POINTS ON THE EVALUATION BOARD
Figure 2-5 shows the top of the board and highlights the ground test points.
FIGURE 2-5: Evaluation Board Top View – Ground Test Points.
TABLE 2-5:
Designator Test Point Type Description
J11, J12 Signal Ground These test points connect to the signal ground of the board.
These are the ground reference for the UCS81003.
J13, J14, J15 Earth Ground These test points connect to the earth ground of the board (the
shield of the USB connectors).
Signal
Ground
Signal
Ground
Earth
Ground
Earth
Ground
Earth
Ground
Installation and Op eration
2014 Microchip Technology Inc. DS50002300A-page 19
2.7 SOFTWARE INSTALLATION
To begin using the UCS81003 Evaluation Board, software must be installed on a
Windows®-based computer with a USB port.
1. Download the software archive from the board’s web page, unzip it and
double-click the Setup.exe, to start the installation. Figure 2-6 shows the initial
installation screen, which displays briefly as the setup program loads.
FIGURE 2-6: Software Installation – Initialize Window.
2. Click
Next
in the Destination Directory window, as shown in
Figure 2-7
. For proper
operation, the files must be installed in the default locations. The default location
for the software files is
C:\Program Files(x86)\Microchip\UCS81003\
,
while for the LabVIEW software is
C:\Program Files(x86)\National
Instruments
.
FIGURE 2-7: Software Installation – Setting the Destination Directory.
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 20 2014 Microchip Technology Inc.
3. Read and accept the license agreement, then click Next.
FIGURE 2-8: Software Installation – Software License Agreement.
4. To use the LabVIEW software, read and accept the license agreement, then click
Next.
FIGURE 2-9: Software Installation – LabVIEW License Agreement.
On the following screens, select Next and follow the on-screen instructions to complete
the installation. When installation is complete, the program will automatically run. If a
screen appears requiring a restart for the changes to take effect, reboot the computer.
The UCS81003 interface will start with the SMBus communications.
UCS81003 EVALUATION
BOARD USER’S GUIDE
2014 Microchip Technology Inc. DS50002300A-page 21
Chapter 3. Hard ware Descri ption
3.1 UCS81003 DEVICE
The UCS81003 provides a single USB port power switch for precise control of up to
3.0A continuous current (2.85A typical) with overcurrent limiting, dynamic thermal
management, latch/auto-recovery upon fault, selectable active low or high enable,
under and overvoltage lockout, and back-drive protection.
USB Charging Port profiles are integrated into the UCS81003 to assure compliance to
multiple standards. In addition to power switching and USB Charging Port profiling, the
UCS81003 provides automatic and configurable USB data line handshaking to enable
charging of USB-IF Battery Charging 1.2 (CDP or DCP modes), Chinese
Telecommunications Industry Standard YD/T 1591-2009, Apple® Inc., RIM® and many
other mobile devices.
The UCS81003 provides a device attachment detection output, as well as a dedicated
alert output, with current monitoring, charge rationing for controlled delivery of current
regardless of a host’s power state. When the limit is reached, the UCS81003 will
perform the user-programmed behavior (report and disconnect is the default).
3.2 EVALU ATION BOARD POWE R SOURCE
The UCS81003 has split power supply support:
•V
S is the voltage input to Power Switch. This supply rail is required to charge the
portable device. VS source is selected by populating a jumper on J5 header, as
follows:
•V
DD is the power supply for chip functionality. The UCS81003 Evaluation Board
contains two additional ICs, MCP2221 USB bridge and MCP23018 I/O expander,
which are also powered from the VDD supply rail. VDD source is selected by
populating a jumper on the J4 header, as follows:
Jumper
Position Definition
1-2 VS is supplied from the external 5V power supply connected to J1 power jack.
2-3 VS is supplied from the VBUS pin of the J3 USB connector. Use this option
only if the USB host port can supply the charging current for the portable
device.
Jumper
Position Definition
1-2 VDD is supplied from VBUS pin of the J2 USB connector. When using the
board in this configuration and the Attach Detection feature of the UCS81003
is used, the VS voltage must not exceed VDD + 150 mV, as specified in the
data sheet.
2-3 VDD is connected to VS. This configuration is recommended when using the
Attach Detection feature. If the board is evaluated with a PC running the GUI,
then the VS must be supplied after the USB cable is plugged into the J2
connector.
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 22 2014 Microchip Technology Inc.
3.3 MCP22 21 USB-TO-SMBUS BRIDGE
The MCP2221 is a USB-to-UART/I2C bridge that supports SMBus communication. It is
controlled through USB interface by the GUI running on the PC. It is the master device
on the SMBus/I2C bus. It is used to read and write the registers of the two devices
connected to the SMBus/I2C interface: UCS81003 and MCP23018 I/O expander.
3.4 MCP23018 I/O EXPANDER
MCP23018 is a 16-bit I/O Expander with open-drain outputs and I2C interface. Its I2C
address is configured to 0100_000(R/W), different than all possible addresses of the
UCS81003.
The I/O pins used in this application are configured as inputs. They are used to read
the logic state of the following UCS81003 pins: ALERT#, ADET#, PWR_EN, EM_EN,
M1, M2.
3.5 DIRECT SMBUS CONNECT OPTION
It is also possible to connect an external SMBus master to the UCS81003 Evaluation
Board. Remove the jumpers on J7 and connect the SMBus master to the header pins
that are linked directly to UCS81003 pins SMDATA/LATCH and SMCLK/S0. Note that
ground must be connected to one of the test point grounds or header pins on the EVB.
See Figure 3-1 for header pins description.
FIGURE 3-1: UCS81003-to-SMBus Bridge Jumpers.
USB bridge
SCL pin
SMCLK/S0
UCS81003 pin
USB bridge
SDA pin
SMDATA/LATCH
UCS81003 pin
Ground
UCS81003 EVALUATION
BOARD USER’S GUIDE
2014 Microchip Technology Inc. DS50002300A-page 23
Chapter 4. Software Description
4.1 OVERVIEW
To get the graphical interface and the evaluation board running, follow these
instructions:
1. Start the UCS81003 GUI software: from the Windows Start menu, select
Programs > Microchip > UCS81003.
2. Connect the USB mini connector end of the cable to the board and the standard
USB connector of the cable to any available USB port on the PC. If the VDD
supply is connected to VS (the jumper on J4 header is populated on position 2-3),
then connect the VS supply. The USB Activity LED should light, indicating that
the MCP2221 USB bridge is connected to the PC.
The UCS81003 Evaluation Board interface (Figure 4-1), consists of five tabs (Main,
Configuration & General Status, Custom Charging, Register Set and Demo) as
well as the right side sections that are always visible (Panel Controls, Pi n State &
Attach S tatus and Active Mode Selection).
FIGURE 4-1: UCS81003 Evaluation Board Initial Window.
Tabs Fixed Panel
with Controls
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 24 2014 Microchip Technology Inc.
4.1.1 Tips for Using the EVB GUI
• For many controls on the GUI panel, placing the mouse cursor over a control will
pop up context help that indicates the register address or provides a description.
• After a power up of the evaluation board, the default settings are loaded. Users
can save setting configurations to user-named files which can be reloaded at any
time for quick reconfiguration (see Section 4.3.4.3 “Configuration Save and
Load”).
• The GUI cannot be used to demonstrate UCS81003 behavior in Stand-Alone
mode since SMBus communication is required.
4.1.2 GUI Abbreviat ions
4.1.3 Keyboard Shortcuts
Some GUI controls have keyboard shortcuts, as shown in Table 4-1.
Abbreviation Description
BC Battery charging
CDP Charging downstream port
DCE Dedicated charger emulation
DCP Dedicated charging port
EM Emulation
EM_EN Emulation enable
M1 Mode control pin number one
M2 Mode control pin number two
TABLE 4-1: UCS81003 EVALUATION BOARD GUI KEYBOARD SHORTCUTS
GUI Control Shortcut Control Description
Run CTRL + R Section 4.2.1.1 “Stop and Run Buttons”
Stop F12 Section 4.2.1.1 “Stop and Run Buttons”
Software D es cription
2014 Microchip Technology Inc. DS50002300A-page 25
4.2 INTERFACE DESCRIPTION AND OPERATION
4.2.1 Panel Controls
The Panel Controls section on the right side of the GUI, shown in Figure 4-2, affects
GUI operation. This section is always displayed.
FIGURE 4-2: Panel Controls.
4.2.1.1 STOP AND RUN BUTTONS
Pressing the Stop button, shown in Figure 4-2, interrupts GUI software communication
with the evaluation board. When this button is clicked, the Run button appears under
an extended menu bar, as shown in Figure 4-3.
FIGURE 4-3: Stop and Run Button.
Register Read
Single Read
Stop
Button
COM Status
Single/
Continuous Read
Mode Switch
Delay Button and Field Indicator
Enable Check Box
Default
Button
Step
Button
Demo
Button
Run Button
Abort Execution
Button
Extended Menu
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 26 2014 Microchip Technology Inc.
4.2.1.2 RUN BUTTON
To restart communication between the software and the evaluation board, click the Run
button. This button disappears when communication resumes.
To close the program, press the Close (X) button on the upper right corner of the
window.
4.2.1.3 COM STATUS INDICATOR
The COM Status indicator shows the status of communications over the SMBus.
During normal operation, COM Status is green. If SMBus communications fails, COM
Status turns red (or alternates red and green).
4.2.1.4 REGISTER READ DELAY
The Register Read Delay sets the GUI control panel update speed. It affects the
speed that the software reads the registers, but will not affect the device’s sampling
time. The default is 25 ms. This number can range from 0 to 5000 ms in increments of
25 ms.
4.2.1.5 SINGLE/CONTINUOUS READ
The panel defaults to continuous register reads (toggle switch in down position, as
shown in Figure 4-2). To stop continuous register reads, check the “Single Read
Enable” box. In order to capture the register values at a given time, click the switch,
which will briefly flip to Single Read.
4.2.1.6 DEFAULT
When this button is pressed, it loads the defaults to all registers of the UCS81003.
4.2.1.7 STEP
When selected, Step will go through the Emulation Profiles in sequence, from Legacy 1
through 7, then BC1.2 DCP, and finally Custom. The actual DCE cycle is slightly
different, please see product’s data sheet for more information.
4.2.1.8 DEMO
The Demo button enables an automated routine to cycle through a user-defined set of
profiles and selects the highest current profile. This feature emulates an external
controller and is not part of the UCS81003 device.
Note: Stopping and restarting the GUI does not affect register settings. To restore
default register settings, disconnect power from the board, then reconnect
power.
Software D es cription
2014 Microchip Technology Inc. DS50002300A-page 27
4.2.2 Pin State and Attach Status Panel
The Pin State & Attach Status section on the right side of the GUI, shown in Figure 4-4,
provides a quick graphical status reference and allows physical control pin override.
This section is always displayed.
FIGURE 4-4: Pin State and Attach Status.
4.2.3 Pin State & Attach Status Panel
4.2.3.1 ALERT# AND A_DET# INDICATORS
When the ALERT# and A_DET# indicators are green, the signals at the device’s
respective pin are low and the corresponding condition has occurred (alert or device
attached, respectively). When the indicators are dark, the pin states are high.
4.2.3.2 PIN INDICATORS
The pin indicators (SEL, PWR_EN, M1, M2 and EM_EN) shown in Figure 4-4 are
green if the signal on the corresponding pin on the UCS81003 device is high, and dark
if the signal is low. If the “Pin Ignore” box is checked (see Section 4.2.3.3 “Pin
Override”), these indicators will reflect the GUI overrides for these pins.
4.2.3.3 PIN OVERRIDE
For evaluation convenience, the GUI can override the setting of the following pins on
the UCS81003 device: PWR_EN, M1, M2 and EM_EN. Check the “Pin Ignore” box
(see Figure 4-4) to enable pin override. Then, check in the corresponding pin box to set
the value high.
ALERT#
Pin
Indicators
A_DET#
Pin Override
Check Boxes
and
Indicators
Note 1: Pin override does not affect the actual signal on the pin. It only affects the
register values.
2: The SEL pin is only read once by the UCS81003 at power up, so there is
no pin override for it. To close the port power switch, the PWR_EN state
must match the SEL state (e.g., SEL = high and PWR_EN = high).
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 28 2014 Microchip Technology Inc.
4.2.4 Active Mode Selection
The Active Mode Selection section on the right side of the GUI, shown in Figure 4-5,
provides a quick reference regarding operating state based on the values of M1, M2
and EM_EN. This section is always displayed.
FIGURE 4-5: Charger Emulation Selection.
Software D es cription
2014 Microchip Technology Inc. DS50002300A-page 29
4.3 TAB DESCRIPTIONS
4.3.1 Main Tab
The Main tab (Figure 4-6) shows key parameters related to the port power switch,
including the maximum current limit, the present current limit (always equal to or less
than maximum current limit), and power state (e.g. detect, active, error, etc.). When a
portable device has been successfully attached, the screen shows the power state
change from Detect to Active and shows the various handshakes applied. Once it is
determined that the device is charging, the screen shows which emulation profile was
successful, and the graph shows the charging current. Optionally, the user may monitor
the charge delivered or ration the charge delivered to the attached device.
FIGURE 4-6: Main Tab Window Overview.
4.3.1.1 DEDICATED CHARGER EMULATION (DCE) CYCLE
As shipped, the UCS81003 is ready to function as a dedicated charger, which will be
applied when there is an attach detection. To view this behavior, perform the following:
1. Connect VS to the evaluation board (see Section 2.4 “Jumpers on the
Evaluation Board”). The VS_LOW indicator on the bottom of the Main Tab must
be dark. If the color is red, the voltage is not high enough to charge a portable
device.
2. Connect a portable device to the board. Use the OEM USB charging cable that
comes with the portable device.
3. The UCS81003 should detect an attachment, switch to the Active Power state,
apply an emulation profile and deliver a charge. Figure 4-7 shows the interface
after charging has started.
Tab
Status Panel
Measured
Current
Status
Right-click Wave Box
for Plot Appearance Settings
Current Status
Instantaneous
Current
Measurement
Screen
Selection
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 30 2014 Microchip Technology Inc.
FIGURE 4-7: Main Tab - Charging Started.
4. Disconnect the portable device from the board.
The UCS81003 should detect a removal, switch to the Detect power state, and stop
delivering a charge. Figure 4-8 shows the interface after a removal was detected.
FIGURE 4-8: Main Tab - Removal Detected.
VS_LOW
Indicator
Power State
Indicator
Charger
Emulation
Profile
Indicator
A_DET#
is asserted
Pin Status
Power State
Indicator Changed
A_DET#
is deasserted
Disconnect
showing
Point
in Plot
Pin Status
Software D es cription
2014 Microchip Technology Inc. DS50002300A-page 31
4.3.1.2 CHARGING DOWNSTREAM PORT (CDP)
The CDP charging profile is based on the “USB Battery Charging Specification v1.x”.
When a BC1.x-compliant portable device attachment is detected, the UCS81003 and
the portable device do handshaking based on the standard. If handshaking is
successful, charging occurs up to the set current limit.
To select the CDP port power profile, M1, M2 and EM_EN must all be high. This can
be done by removing the jumpers for these pins (from J9 header) or by using the pin
override in the GUI (see Section 4.2.3.3 “Pin Override”).
4.3.1.3 PASS-THROUGH
Data Pass-Through does not apply any type of charger emulation. When selected, it
closes the USB high-speed data switch and supplies current up to the current limit.
To select Data Pass-Through, M1, M2 and EM_EN can be set to any one of the two
DATA PASS-THRU combinations (010 and 110), as shown in Figure 4-9. This can be
done by setting the jumpers for these pins (from J9 header –
see Section 2.4 “Jumpers on the Evaluation Board”) or by using the pin override in
the GUI (see Section 4.2.3.3 “Pin Override”).
FIGURE 4-9: Data Pass-Through Selection Options.
4.3.1.4 CURRENT MONITORING AND CHARGE RATIONING
To view current monitoring and current rationing, perform the following on the Main tab:
1. Set a Ration Limit. The ration limit is expressed in mAh (electric charge).
2. Set rationing behavior. The Ration Completion Behavior defaults to “Report &
Disconnect”. Once the ration limit is reached, portable device charging will
cease, the ALERT# pin will assert, and the Ration Complete bit will be set. If
you do not want the system to behave in this fashion, select one of the other
three options from the Ration Completion Behavior drop-down list: Report,
Report & Sleep or Take No Action.
3. Connect VS to the evaluation board (see Section 2.4 “Jumpers on the
Evaluation Board”). The VS_LOW indicator on the bottom of the Main Tab must
be dark. If the VS_LOW indicator is red, the voltage is not high enough to charge
a portable device.
4. Connect a portable device to the evaluation board. Use the OEM USB charging
cable that comes with the portable device.
5. Enable rationing by checking the Ration Enable check box on the Main Tab.
6. Watch the GUI as the device starts charging. Figure 4-10 shows the interface
after the ration limit was reached (for “Report & Disconnect” behavior setting).
Data
Pass-Through
Options
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 32 2014 Microchip Technology Inc.
FIGURE 4-10: Main Tab - Ration Limit Reached.
Note: As shown in Figure 4-10, the green trace is the instantaneous current, while
the red diagonal line is the charge being delivered in mAh. Both are also
presented in numeric format in the bottom left boxes. Trace color and
characteristics can be changed by clicking on the waveform boxes to the
left of these numerical values.
Power State
Indicator Changed
Pin is
Instantaneous
Ration Limit
Setting
Rationing
Behavior
ALERT#
Complete
Rationing
Indicator
Ration
Enable
Current (mA)
Delivered
Current
Measured
Current
Status
VS_LOW
Indicator
Charge
(mAh)
Asserted
Software D es cription
2014 Microchip Technology Inc. DS50002300A-page 33
4.3.2 Configuration and General Status Tab
The Configuration & General Status tab (Figure 4-11), includes various status
indicators and configuration controls. Items are grouped by function, detailed in the
following sections.
FIGURE 4-11: Configuration & General Status Tab.
4.3.2.1 INTERRUPT STATUS
The indicators in the Interrupt Status section turn green when the corresponding bit is
high, and are dark when the bit is low.
4.3.2.2 GENERAL STATUS
Indicators in the General Status section turn green when the corresponding bit is high
and are dark when the bit is low.
4.3.2.3 EMULATION BEHAVIOR
Check the necessary check box to enable the corresponding emulation behavior.
4.3.2.4 COMMUNICATIONS
SMBus address is displayed. SMBus timeout can be disabled.
4.3.2.5 EMULATION PROFILE DISABLE
Check the Profiles boxes to disable them. They will not be used during emulation. By
selecting the “Disable ALL” will toggle all profile check boxes.
Configuration Tab
Selected
Interrupt and General
Status
Emulation Profile
Disable
Emulation
Behavior Option
Comm.,
Fault
Handler,
Controls
General
and
Thermal
Emulation
Settings
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 34 2014 Microchip Technology Inc.
4.3.2.6 ATTACH/REMOVE ENABLE
Click the S0_SET box to remove the check mark and disable the function.
4.3.2.7 FAULT HANDLER
These are controls related to fault handling.
4.3.2.8 GENERAL CONTROL
Controls for general parameters.
4.3.2.9 THERMAL REGULATION
Controls for thermal and detection delay parameters.
4.3.2.10 PORT POWER KEEP-OUT
Displays values for the port power parameters.
4.3.2.11 GENERAL EMULATION/CHARGING SETTINGS
Controls for emulation and charging.
4.3.2.12 EMULATION TIMEOUTS
Sets the emulation timeout period for each profile. These timeout periods are not used
if the EM_TIMEOUT_DIS control in the Emulation Behavior section is checked.
4.3.2.13 CHARGING THRESHOLD CURRENT
Controls charging threshold current setting.
4.3.2.14 HIGH SPEED SWITCH CONFIGURATION
Controls the high-speed switch parameters.
Software D es cription
2014 Microchip Technology Inc. DS50002300A-page 35
4.3.3 Custom Charging Tab
The C u stom Charg ing tab (Figure 4-12), provides the means for users to create
custom charger emulator configurations. These configurations include signaling on the
USB data lines, as well as what method of current limiting to employ (Constant Current
or Trip). For more information, refer to the UCS81003 Data Sheet and AN24.14 -
“UCS1002 Fundamentals of Custom Charger Emulation” (DS200005234).
FIGURE 4-12: Custom Charging Tab.
4.3.3.1 CUSTOM EMULATION CONFIGURATION
Creating a custom emulation profile is a two-part process of entering the appropriate
stimulus-response pairs in the provided fields, as well as the desired current limiting
behavior (after emulation is applied, and the portable device starts to draw current).
4.3.3.1.1 Example
Settings shown in Figure 4-12 will apply the Legacy 2 stimulus pair. This includes a
voltage divider on DP and on DM with the values shown under STEP 5 column.
If the portable device draws bus current greater than the charging threshold being
used, it will always operate in Current Limiting Trip mode (with trip point based on the
current limit setting).
Custom Charging Tab
Selected
Custom Emulation
Configuration Setting
Custom Current
Limiting Behavior
Custom Emulation
Quick Load Selection
Custom Emulation
Save Option
Custom Emulation
Timeout Custom Setting
Selection
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 36 2014 Microchip Technology Inc.
4.3.3.2 CUSTOM CURRENT LIMITING BEHAVIOR
The second part of creating custom profiles is to specify the behavior of current limiting
and minimum voltage output. This is accomplished using the Ibus_r2min and
VBus_Min drop-down lists, as shown in Figure 4-13.
FIGURE 4-13: Curr ent -Voltage Behavior Selec tio n.
4.3.3.3 CUSTOM EMULATION QUICK LOAD
The Custom Emulation Quick Load drop-down menu allows single-click loading of the
Custom Emulation Configuration registers. Simply select the profile to load from the
menu and registers 41h – 4Ch will be loaded with that profile.
4.3.3.4 SAVE CUSTOM EMULATION CONFIGURATION
Customs Emulation Configuration allows for a quick way to save the necessary regis-
ters to configure the UCS81003 for a custom profile to a file. Enter the path and press
the SAVE button. Files will be overwritten if duplicate file names are used.
Registers 40h – 4Ch (Custom Emulation Configuration - Custom Charging tab),
16h (Emulation Behavior - Configuration tab), 19h (ILIM - Main tab), 25h (High Speed
Switch Configuration – Configuration tab) and 51h (Custom Current Limiting Behavior
– Custom Charging tab) will be saved in a two-column format. Comments can be
added at the end of the file for documentation.
Region 2
Drop-down List
Click on the arrow
to reveal the options
in the VBus_Min
Drop-down List
Current Limit
Software D es cription
2014 Microchip Technology Inc. DS50002300A-page 37
4.3.4 Register Set Tab
The Register Set tab (Figure 4-14), allows viewing and updating of the UCS81003
registers, identifies the device on the evaluation board and manages configuration files.
FIGURE 4-14: Register Set Tab.
4.3.4.1 REGISTER CONTENT
Register Content shown in Figure 4-14 is a scrollable list of the UCS81003 registers
and the current value. It is important to note that not all addresses are physical memory
locations on the device; these registers will read ‘0’. Likewise, some registers shown,
that are undocumented in the data sheet, may contain data. Editing these registers can
cause unexpected results.
To update a register value, locate the register address in the left column, type the new
value in the corresponding cell in the right column, and press Enter on the keyboard or
click outside the editable field to complete the action.
4.3.4.2 PRODUCT INFORMATION
Product Information panel shows the values of three registers (FDh, FEh and FFh)
which identify the device on the evaluation board.
4.3.4.3 CONFIGURATION SAVE AND LOAD
The Register Set tab contains controls (Figure 4-15) which save the settings currently
configured in the UCS81003 to allow quick reconfiguration at any time.
Register Set Tab
Selected
Load/Save Register Register Content List
Product
Section
Information
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 38 2014 Microchip Technology Inc.
FIGURE 4-15: Save/Load Section.
To save configuration settings, configure the UCS81003 as desired, then display the
Register Set tab. Type a path in the “File Stored Path” field or press the Browse button
to select the folder where the configuration file will be saved. The file should be named
with the .txt extension or with a similar text file format. Once a file name and location
has been chosen, click the Save All Register Values switch, and the file is saved.
The data is saved in two columns separated by tabs. The first column is the register
address and the second column is the register data.
Once a file is saved, it can be recalled at any time by selecting the file in the “File Load
Path” field and clicking the Load All Register Values switch.
Browse for Location
Buttons
Path Fields
Load/Save All Register
Values Buttons
Note: If a file with the same name already exists, it will be overwritten and the old
data will be lost.
Software D es cription
2014 Microchip Technology Inc. DS50002300A-page 39
4.3.5 Demo Tab
The Demo tab (Figure 4-16) demonstrates external controller logic to apply custom
emulation profiles and optimize charging current. This feature uses the LabView engine
to step through the selected files and store the current drawn by the device. Several
options are available to customize the operation of the demo and explore the potential
of the UCS81003.
FIGURE 4-16: Demo Tab.
4.3.5.1 STEP 1: CONFIGURE DEVICE FOR DEMO ROUTINE
The first step in preparing to run the Demo feature is to configure the device to the
desired starting configuration. A file has been preloaded at installation and is ready to
be used, or a new configuration can be created. Each time the Demo button (in the
Panel Control section) is toggled, the Setup.txt file will be loaded.
4.3.5.2 STEP 2: DEFINE CUSTOM EMULATION CONFIGURATIONS
At installation, a set of files are preloaded on the users system (profile1.txt –
profile7.txt) with the default profiles of the UCS81003. These files can be
changed easily by using the Custom Charging tab.
4.3.5.2.1 Active Files
Check the corresponding check box to activate the desired profile in the demo routine.
4.3.5.2.2 Custom Emulation Files
This column contains the full path to the profile file to be loaded. This file should contain
registers 40h – 4Ch, 16h and 25h. This file can be created with the GUI on the Custom
Charging tab.
Demo Tab
Selected
Demo Options
Quick
Step 2
Load
Custom
Panel
Option
Demo
Button
Step 1
Configure Device
Emulation
Config
Options
Demo
Results
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 40 2014 Microchip Technology Inc.
4.3.5.2.3 Current Reading
This column displays the current being drawn from the attached device. If End Value is
selected (from the Demo Options section, Current Reading features), this will update
continuously. If MAX Value is selected, this will store the highest value of current during
the dwell time.
4.3.5.2.4 Dwell Time
Dwell Time column defines the amount of time from PWR_EN set to PWR_EN unset.
Each profile can have a different Dwell Time.
4.3.5.3 DEMO OPTIONS
4.3.5.4 CUSTOM FILE PATH QUICK LOAD
When starting the UCS81003 interface, the file paths are reset to a default path. If
desired, the user may save the files in an alternate location. This quick load feature
saves the paths of the Setup.txt and all seven profile locations to quickly return or
change files with one click.
4.3.5.5 RUNNING THE DEMO
Once the files and settings are configured as desired, enable the Demo routine by
pressing the Demo switch within the Panel Controls area. The routine begins and the
results are displayed in Profile MAX and Current MAX. By default, the Demo routine
will enable the profile that is indicated by Profile MAX.
•Profile MAX: Stores the profile of the highest value of current draw.
•Current MAX: Stores the highest current associated with the Profile MAX #.
TABLE 4-2: DEMO OPTIONS DESCRIPTION
Options Description
Repeat if 0 mA When this option is set, it will repeat if all of the profiles read 0 mA,
i.e. no device connected
Repeat Forever When set, it will repeat the set of files until unchecked
Dead Batt. Repeat When set, it will start the demo after the initial cycle after the
specified Dead Batt. Delay time. This is useful when the battery is
completely discharged and the device OS is unable to handshake
with UCS81003.
Dead Batt. Delay This option is defined in minutes. Minimum is 0 minutes, maximum
is 10 minutes.
Current Reading Displays either the End Value (last value before PWR_EN set low)
or MAX Value (highest value during Dwell Time)
Note: The Demo tab does not need to be visible to activate the Demo routine.
Software D es cription
2014 Microchip Technology Inc. DS50002300A-page 41
4.4 TROUBLESHOOTING
Ta b l e 4 - 3 identifies possible problems and their solutions to troubleshoot the
UCS81003 software.
TABLE 4-3: TROUBLESHOOTING THE INTERFACE - COMMON PROBLEMS
Problem Solution
GUI Controls Unresponsive
After Installation Restart the computer. In some cases, a restart is required after installation.
GUI Freezes If the GUI freezes for unknown reasons, communications cannot be stopped, and
the program cannot be closed, disconnect the USB cable from the evaluation
board, then close the program. Reconnect the board, then restart the GUI.
Random Panel Display When a board is not connected to the PC running the GUI, the panel will be in an
all-zero register displayed state. This also occurs when SMBus communications
are disconnected. The panel display is not meaningful. Connect the board and
establish SMBus communications. If this still does not work, there is a problem
with the connection. The cable or the USB port may be defective.
Device Is Not Charging or Not
Charging Optima lly • Check if the current limit jumper is set appropriately.
• The current source may not have high enough capacity from VS.
• Run the Demo routine to determine highest current profile.
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 42 2014 Microchip Technology Inc.
NOTES:
UCS81003 EVALUATION
BOARD USER’S GUIDE
2014 Microchip Technology Inc. DS50002300A-page 43
Appendix A. Schematic and Layouts
A.1 INTRODUCTION
This appendix contains the following schematics and layouts for the UCS81003
Evaluation Board:
• Board – Schematic
• Board – Top Silk
• Board – Top Copper and Silk
• Board – Top Copper
• Board – Inner Plans GND 1
• Board – Inner Plans GND 2
• Board – Bottom Copper
• Board – Bottom Copper and Silk
• Board – Bottom Silk
Schematic and Layouts
2014 Microchip Technology Inc. DS50002300A-page 44
A.2 BOARD – SCHEMATIC
VDD_5V
USB_N
USB_P
USB_N
USB_P
0.47uF 6.3V
0603
C9
GND
GP0
GP1
RX
TX
USB_OK SM_ACT
SDA
SCL
RESET
10k
0603
1%
R8
ID 4
VBUS 1
GND 5
D- 2
D+ 3
ID
V
B
US
G
ND
D
-
D+
0
USB MINI-B Female
J2 VUSB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
HDR-2.54 Male 2x8
J18
0.57A
2.28A_SA
2.05A_SA
1.68A_SA
1.35A_SA
1.13A_SA
1.00A_SA
0.57A_SA
2.85A
2.05A
2.28A
1.68A
1.35A
1.00A
1.13A
AH_33h
AH_56h
AH_55h
AH_54h
AH_30h
AH_31h
AH_32h
AL_57h
AL_33h
AL_32h
AL_31h
AL_30h
AL_54h
AL_55h
AL_56h
AH_57h
2.85A_SA
SEL
56k
R28
68k
R29
100k
R31
120K
R32
150k
R33
VDD_5V
82k
R30
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
HDR-2.54 Male 2x8
J19
SEL
56k
R35
68k
R36
100k
R38
120K
R39
150k
R40
VDD_5V
82k
R37
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
HDR-2.54 Male 2x8
J16
0R
R41
COMM_SEL/ILIM
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
HDR-2.54 Male 2x8
J17
COMM_SEL/ILIM
GND
10k
R42
12k
R43
15k
R44
18k
R45
22k
R46
27k
R47
33k
R48
0R
R49
10k
R50
12k
R51
15k
R52
18k
R53
22k
R54
27k
R55
33k
R56
NC
1
M1
2
M2
3
VBUS1 4
COMM_I_LIM 7
SEL 8
VS1
9
DMIN
20
NC
14
NC
15
SMDATA 16
SMCLK 17
DPIN
19
VBUS2 5
VBUS3 6
VS2
10
PWR_EN
13
VS3
11
ALERT# 18
VDD
12
NC
21
NC
22
DMOUT 23
DPOUT 24
A_DET# 25
EM_EN
26
GND
27
NC
28
EP
29
UCS81003
U1
12
34
HDR-2.54 Male 2x2
J7
VDD_5V
VDD
1
GP0
2
GP1
3
RST
4
UART RX
5
UART TX
6
GP2
7GP3 8
SDA 9
SCL 10
VUSB 11
D- 12
D+ 13
VSS 14
VDD
GP
0
G
P
1
R
S
T
UA
RT RX
U
A
RT TX
G
P
2
G
P3
S
D
A
SC
L
V
U
S
B
D
-
D
+
VSS
MCP2221
U3
VDD_5V
1k
0603
5%
R1
RED
LD2
VDD_5V
USB_OK
GREEN
LD1
1k
0603
5%
R3
VDD_5V
SM_ACT
MCP23018
VSS
1
INTB
15
V
S
S
I
NTB
I
I
GPB7 9
RESET
14
ADDR
13
SDA
12 SCL
11
VDD
10
GPB0 2
GPB1 3
GPB2 4
GPB3 5
GPB4 6
GPB5 7
GPB6 8
INTA
16
GPA0 17
GPA1 18
GPA2 19
GPA3 20
GPA4 21
GPA5 22
GPA6 23
GPA7 24
U2
VDD_5V
GND
GND
PWR_EN
M1
EM_EN
A_DET#
ALERT#
M2
1k
0603
5%
R18
RED
LD3
ALERT#
VDD_5V
GREEN
LD4
A_DET#
1k
0603
5%
R14
VDD_5V
VDD_5V
ALERT#
A_DET#
PWR_EN
EM_EN
M1
M2
123
HDR-2.54 Male 1x3
J4
123
HDR-2.54 Male 1x3
J5
GND
VDD_5V
1M
0402
1%
R4
1M
0402
1%
R5
D_IN_P
D_IN_N
RESET
TP LOOP White
TP1
DP_IN
TP LOOP Yellow
TP2
DM_IN
1
2
J8
L2L2'
L1L1'
CM Choke 90Ohm
L1
VBUS
1
SSRX-
5
D-
2
D+
3
V
BU
S
SS
RX
-
D-
D
+
Shield
0
SSRX+
6
GND_D
7
SSTX-
8
SSTX+
9
GND
4
USB 3.0 A RCPT
J10
VBUS 1
SSRX- 5
D- 2
D+ 3
V
BU
S
SSRX
-
D-
D+
Shield
0
SSRX+ 6
GND_D 7
SSTX- 8
SSTX+ 9
GND 4
USB 3.0 A PLUG
J3
GND
SSRX_N
SSRX_P
SSTX_N
SSTX_P
GND
GND SSRX_N
SSRX_P
SSTX_N
SSTX_P
GND_DRAIN
GND_DRAIN
GND
GND
SHIELD
SHIELD
5V_IN
VBUS_5V
1uF 16V
0603
C5
GND
470pF 50V
0603
C10
GND
150uF 10V
TANT-D
C8 GND
GND
1M
0402
1%
R19
1M
0402
1%
R16
TP LOOP White
TP4
DP_OUT
TP LOOP Yellow
TP3
DM_OUT
D_OUT_N
D_OUT_P
D_OUT_N
D_OUT_P
10uF 10V
0805
C2
GND
0.01uF 16V
0603
C3
0.1uF 25V
0603
C1
0.1uF 25V
0603
C6
0.1uF
25V
0603
C4
0.1uF 25V
0603
C7
SEL
COMM_SEL/ILIM
10k
0603
1%
R17
10k
0603
1%
R20
10k
0603
1%
R21
10k
0603
1%
R23
VDD_5V
SMDATA/LATCH
SMCLK/S0
SMDATA/LATCH
SMCLK/S0
2.2k
0603
1%
R9
2.2k
0603
1%
R10
10k
0603
1%
R6
10k
0603
1%
R7
VDD_5V
VS_5V
VS_5V
1 2
3 4
5 6
7 8
HDR-2.54 Male 2x4
J9
GND
12
34
HDR-2.54 Male 2x2
J6
GND
5V
SOD-523
D2
5V
SOD-882
D3
0R
0603
R22
GND
47k
R27
47k
R34
1
J11
GND
GND
0R
0603
R2
GND
1
J13
SHIELD
SHIELD
0R
0603
R24
GND
1
J14
SHIELD
SHIELD
0R
0603
R25
GND
1
J15
SHIELD
SHIELD
0R
0603
R26
GND
1
J12
GND
GND
SHIELD
SHIELD
2
3
1
JACK Power 2.1mm Male
J1
VBUS_IN
VBUS_OUT
5V
D1
Shunt 2.54mm 1x2 Handle11
JP1
4.7uF 16V
0603
C11 GND
5V
SOD-882
D4
Schematic and Layou ts
2014 Microchip Technology Inc. DS50002300A-page 45
A.3 BOARD – TOP SILK
A.4 BOARD – TO P COPPER AND SILK
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 46 2014 Microchip Technology Inc.
A.5 BOARD – TOP COPPER
A.6 BOARD – INNER PLANS GND 1
Schematic and Layou ts
2014 Microchip Technology Inc. DS50002300A-page 47
A.7 BOARD – INNER PLANS GND 2
A.8 BOARD – BOTTOM COPPER
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 48 2014 Microchip Technology Inc.
A.9 BOARD – BOTTOM COPPER AND SILK
A.10 BOARD – BOTTOM SILK
UCS81003 EVALUATION
BOARD USER’S GUIDE
2014 Microchip Technology Inc. DS50002300A-page 49
Appe nd ix B. Bill of Materials
TABLE B-1: BILL OF MATERIALS (BOM)
Qty. Reference Description Manufacturer Part Number
4 C1, C4, C6, C7 Cap. ceramic 0.1 μF 25V 10% X7R
SMD 0603
Murata Electronics®GRM188R71E104KA01D
1 C2 Cap. ceramic 10 μF 10V 10% X7R
SMD 0805
Murata Electronics GRM21BR71A106KE51L
1 C3 Cap. ceramic 0.01 μF 16V 10% X7R
SMD 0603
Samsung Group CL10B103KO8NNNC
1 C5 Cap. ceramic 1 μF 16V 10% X7R SMD
0603
Taiyo Yuden Co., Ltd. EMK107B7105KA-T
1 C8 Cap. tantalum 150 μF 10V 10% 100m
ohm SMD D
AVX Corporation TPSD157K010R0100
1 C9 Cap. ceramic 0.47 μF 6.3V 10% X5R
SMD 0603
Murata Electronics GRM188R60J474KA01D
1 C10 Cap. ceramic 470 pF 50V 10% X7R
0603
TDK Corporation C1608X7R1H471K
1 C11 Cap. ceramic 4.7 uF 16V 10% X5R
SMD 0603
TDK Corporation C1608X5R1C475K080AC
2 D1, D2 Diode Zener T5V0S5-7 5V 150 mW
SMD SOD-523
Diodes® Incorporated T5V0S5-7
2 D3, D4 Diode Zener PESD5V0X1BL 5V SMD
SOD-882
NXP Semiconductor PESD5V0X1BL,315
1 J1 Conn. jack power 2.1 mm 16V 2.5A
male th. R/A
CUI Inc. PJ-002A
11 JP1 Mech. hardware jumper 2.54 mm 1x2
handle gold
TE Connectivity, Ltd. 881545-2
1 J2 Conn. USB Mini-B female SMD R/A Hirose Electric Co., Ltd. UX60SC-MB-5ST(80)
1 J3 Conn. USB 3.0 Standard-A plug SMD
R/A
Wurth Elektronik GmbH &
Co.
692112030100
2 J4, J5 Conn. header-2.54 male 1x3 gold
5.84 MH th. vert.
FCI 68000-103HLF
1 J6 Conn. header-2.54 male 2x2 gold
5.84MH th. vert.
Samtec, Inc. TSW-102-07-G-D
1 J7 Conn. header-2.54 male 2x2 gold
5.84MH th. vert.
Samtec, Inc. HTSW-102-07-G-D
1 J8 Conn. header-2.54 male 1x2 gold
5.84MH th. vert.
FCI 68001-202HLF
1 J9 Conn. header-2.54 male 2x4 gold
5.84MH th. vert.
Samtec, Inc. TSW-104-08-L-D
1 J10 Conn. USB 3.0 Standard-A rcpt. th. R/A Wurth Elektronik GmbH &
Co.
692121030100
5 J11, J12, J13, J14,
J15
Conn. TP loop tin SMD FCI 68602-116HLF
Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM
used in manufacturing uses all RoHS-compliant components.
UCS81003 Evaluation Board User’s Guide
DS50002300A-page 50 2014 Microchip Technology Inc.
4 J16, J17, J18, J19 Conn. header-2.54 male 2x8 gold
5.84MH th. vert.
FCI 68602-116HLF
1 L1 Inductor choke Common Mode 90 ohm
0805
Murata Electronics DLW21HN900SQ2L
2 LD1, LD4 Diode LED green 2.2V 25mA 15 mcd
clear SMD 0603
Kingbright Corp. APT1608SGC
2 LD2, LD3 Diode LED red 1.95V 30 mA 700 mcd
clear SMD 0603
Kingbright Corp. APTD1608SURCK
4 R1, R3, R14, R18 Res. TKF 1k 5% 1/10W SMD 0603 Panasonic®ERJ-3GEYJ102V
7 R2, R22, R24, R25,
R26, R41, R49
Res. TKF 0R 1/10W SMD 0603 NIC Components Corp. NRC06Z0TRF
4 R4, R5, R16, R19 Res. TKF 1M 1% 1/10W SMD 0402 Panasonic ERJ-2RKF1004X
9 R6, R7, R8, R17,
R20, R21, R23,
R42, R50
Res. TKF 10k 1% 1/10W SMD 0603 NIC Components Corp. NRC06F1002TRF
2 R9, R10 Res. TKF 2.2k 1% 1/10W SMD 0603 Panasonic ERJ-3EKF2201V
2 R27, R34 Res. TKF 47k 1% 1/10W SMD 0603 Panasonic ERJ-3EKF4702V
2 R28, R35 Res. TKF 56k 1% 1/10W SMD 0603 Stackpole Electronics, Inc. RMCF0603FT56K0
2 R29, R36 Res. TKF 68k 1% 1/10W SMD 0603 Stackpole Electronics, Inc. RMCF0603FT68K0
2 R30, R37 Res. 82K ohm 1/10W 1% 0603 SMD Panasonic ERJ-3EKF8202V
2 R31, R38 Res. TKF 100k 1% 1/10W SMD 0603 Panasonic ERJ-3EKF1003V
2 R32, R39 Res. TKF 120K 1% 1/10W SMD 0603 Panasonic ERJ-3EKF1203V
2 R33, R40 Res. TKF 150k 1% 1/10W SMD 0603 Panasonic ERJ-3EKF1503V
2 R43, R51 Res. TKF 12k 1% 1/10W SMD 0603 Yageo Corporation RC0603FR-0712KL
2 R44, R52 Res. TKF 15k 1% 1/10W SMD 0603 Panasonic ERJ-3EKF1502V
2 R45, R53 Res. TKF 18k 1% 1/10W SMD 0603 ROHM Semiconductor MCR03EZPFX1802
2 R46, R54 Res. TKF 22k 1% 1/10W SMD 0603 Stackpole Electronics, Inc. RMCF0603JT22K0
2 R47, R55 Res. TKF 27k 1% 1/10W SMD 0603 Yageo Corporation RC0603FR-0727KL
2 R48, R56 Res. TKF 33k 1% 1/10W SMD 0603 Stackpole Electronics. Inc. RMCF0603FT33K0
2 TP1, TP4 Conn. TP loop white th. Keystone Electronics
Corp.
5012
2 TP2, TP3 Conn. TP loop yellow th. Keystone Electronics
Corp.
5014
1 U1 UCS81003 QFN-28_5X5_EP2.7x3 Microchip Technology Inc. UCS81003AM-C1A
1 U2 Microchip interface GPIO-port Expand.
I2C 16-port MCP23018-E/SS SSOP-24
Microchip Technology Inc. MCP23018-E/SS
1 U3 MCP2221 TSSOP-14 Microchip Technology Inc. MCP2221- I/ST
TABLE B-1: BILL OF MATERIALS (BOM) (CONTINUED)
Qty. Reference Description Manufacturer Part Number
Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM
used in manufacturing uses all RoHS-compliant components.
Bill of Materials
2014 Microchip Technology Inc. DS50002300A-page 51
NOTES:
DS50002300A-page 52 2014 Microchip Technology Inc.
AMERICAS
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Tel: 86-532-8502-7355
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Tel: 86-21-5407-5533
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Tel: 86-24-2334-2829
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Fax: 82-2-558-5932 or
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Tel: 65-6334-8870
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Tel: 886-2-2508-8600
Fax: 886-2-2508-0102
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
EUROPE
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Cop e nha gen
Tel: 45-4450-2828
Fax: 45-4485-2829
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
Germany - Dusseldorf
Tel: 49-2129-3766400
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Germany - Pforzheim
Tel: 49-7231-424750
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
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Tel: 39-049-7625286
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Worldwide Sales and Service
03/25/14
