DC1223A-B - Linear Technology - Datasheet.Directory

DC1223

DESCRIPTION

Demonstration Circuit 1223A-B facilitates communica-

tion betw een PC-based user interface softw are and Lin-

ear Tech SM Bus/I

demonstration boards. DC1223A-B

connects to the computer via U SB. It receives pow er

from the U SB and isolates the computer ground from

the SM Bus/I

C demonstration board. DC1223A-B adds

to DC1223A the SM Bus M onitoring feature. The

DC1223A-B

can be used in three w ays, depending on

the softw are available for the demonstration board un-

der evaluation (DBU E):

QuickEval mode

. QuickEval mode is the easiest w ay to

communicate w ith a Linear Technology SM Bus/I

demonstration board. How ever this is limited to new er

Battery Charger demoboards like the DC1259A.

QuickEval application specific user interfaces are avail-

able at http://w w w .linear.com/designtools/softw are/.

Figure 2 show s an example of an application specific

user interface for DC1259A demo board.

DC410 Emulation mode

. A number of Linear Tech

demonstration boards offer softw are for use w ith the

DC410 Serial Port-to-SM Bus Interface Board, e.g.

DC285 (LTC1695), DC182 (LT1786F), DC286

(LTC1960), DC486 (LTC1760), DC496 (LTC4008), and

DC512 (LTC4100). For these boards, the DC1223A-B

can be used to replace DC410. These Demo Boards

have application specific user interface programs but

they are not part of the Q uickEval softw are program.

These application specific programs are available from

Linear Technology sales department.

NOTE.

This is not a standard mode of operation. Please see detailed

Instructions in Appendix A to replace DC410 w ith DC1223A-B

General User Interface mode

. General user interface

mode is for demo boards that do not offer customized

softw are. The general user interface is PC-based, and

graphical, but not application specific. It can send out

discrete commands to any SM Bus/I

device (see Fig-

ure 2 and Appendix B), supporting nine different SM Bus

command protocols: Send Byte, Receive Byte, W rite

Byte, R ead Byte, W rite W ord, R ead W ord, Block W rite,

Block Read and Block W rite-R ead Process calls. It also

supports additional command protocols for PM Bus:

Extended Read Byte, Extended W rite Byte, Extended

Read W ord, Extended W rite W ord and Group Send. It

can also M onitor the SM Bus traffic of an existing com-

munication betw een a M aster and a Slave. Contact the

Linear Technology sales department for the latest gen-

eral user interface softw are.

, LTC, LTM , LT, Burst M ode, OPTI-LO OP, Over-The-Top and PolyPhase are registered

trademarks of Linear Technology Corporation. Adaptive Pow er, C-Load, DirectSense, Easy

Drive, FilterCAD, Hot Sw ap, LinearView , µM odule, M icropow er Sw itcherCAD, M ultimode

Dimming, N o Latency , No Latency Delta-Sigma, N o R SEN SE, Operational Filter, Panel-

Protect, Pow erPath, Pow erSOT, SmartStart, SoftSpan, Stage Shedding, Sw itcherCAD,

ThinSO T, UltraFast and VLDO are trademarks of Linear Technology Corporation. O ther

product names may be trademarks of the companies that manufacture the products.

DEMO

C IR C U IT

1 2 2 3

Q U IC K S TAR T G U IDE

U S B to S MBU S / S P I In te rfa c e

DC1223

Q U ICK STA RT PROCEDU RE (Q U ICK EV A L M ODE)

Demonstration circuit 1223A-B is easy to set up to

evaluate the performance of Linear Tech SM Bus/I

demonstration boards DC1223A-B. Refer to Figure 1 for

proper measurement equipment setup and follow the

procedure below :

NOTE.

The DC1223A-B

Is pow ered from the H ost PC via USB.

Dow nload the Q uickEval softw are from

http://w w w .linear.com/designtools/softw are/. Follow

the installation instructions carefully.

W hen prompted to plug in the Demo Board, first

connect the USB cable to the DC1223A-B

and then

connect the Demonstration Board U nder Evaluation

(DBU E) to the DC1223A-B. Pow er up the DBU E as

recommended in its Quick Start Guide.

Check to see if there are already pull up resistors on

the DBUE. If yes, set jumpers JP1 and JP2 on

DC1223A-B

to Open.

Check to make sure jumper JP4 is on “Direct”. JP4

should only be on “VCP” if it is doing R S232 emula-

tion for replacing DC410. See Appendix A for this

feature.

The “Found New Hardw are W izard” w indow may pop

up. If it does then choose the “Recommended” In-

stallation.

NOTE

. If W indow s cannot find the device driver, then se-

lect “Install from a list or specific location(Advanced)”. Enter the instal-

lation path as “C:\\Program Files\LTC\QuikEval\driver”.

The associated softw are for the DBU E should pop up.

Power As

Required

DC1223

Demo Bd Under

Evaluation

SMBus

Comms

USB CABLE

TO HOST PC

+Vin Gnd

Figure 1.

Typical Equipment Setup

DC1223

Figure 2.

DC1259A Application Specific User Interface Program (QuickEval)

DC1223

A PPENDIX A : DC4 1 0 EM U L A TION M ODE

A number of older Battery Charger demonstration

boards, including the DC286 (LTC1960), DC486

(LTC1760), DC496 (LTC4008) and DC512 (LTC4100)

used the DC410 to send SM Bus commands to/from a

PC via a serial R S232 com port. The softw are devel-

oped for this configuration w as based on Labview . This

softw are is provided w hen you order these older de-

moboards. Please contact Linear Tech Applications if

you need a copy. How ever, as RS232 is disappearing,

and is being replaced by U SB, the DC1223A-B

replaces

the DC410. The DC1223A-B

can be used to emulate a

RS232 com port for backw ards compatibility w ith the

existing application-specific Labview softw are.

NOTE.

If you don’t w ant to use the legacy Labview softw are w hich

requires R S232 emulation, you can alternatively use a General User

Interface(GUI) softw are developed to communicate using DC1223A-B

w hich does not require RS232 emulation (use USB directly). H ow ever you

w ill be missing the user friendly interface specific to a particular device, for

example the LTC1760, LTC4100 or LTC1960 available in the legacy

Labview program. Instead the GUI requires you to input the parameters

yourself. For the GUI program, skip the below instructions and go to the

Appendix B.

So the new configuration is a DC486 (for example) and

a DC1223A-B. The same Labview softw are can still be

used. How ever you need to follow these steps as it in-

volved RS232 emulation.

IN STALLING SO FTW ARE TO EM U LATE D C410 (R S232)

Connect the hardw are as show n (Figure 3). Do not

connect the U SB port to the computer yet.

DC1223A-B

jumper positions should be:

–

JP5 on “5V”

–

JP4 on “VCP” (Virtual Com Port).

NOTE.

This is a very important step. W hen you change the jumper to

JP4, you are telling the FTDI chip to emulate a RS232 port. If JP4 is

on "Direct", the FTDI chip w ill communicate directly as a USB.

Install DC1223A-B.msi, but don’t run it. If you need a

copy of the softw are please contact Linear Technol-

ogy Sales Department.

NOTE

. For W indow s Vista users, please

follow the instructions available in the DC1223A-B.zip folder. Read the

“Installing DC1223AB_Vista.htm” file.

Connect the U SB cable to the PC now . W ith JP4 on

“VCP”, you may need to install a driver on your com-

puter. If prompted to install the driver (see Figure 4)

for USB



Serial, select “Install from a list or spe-

cific location (Advanced)”. Type in the path for

“C:\Program Files\LTC\DC1223A-B\driver”. If asked

to overw rite driver, click “Yes”. You do not need to

launch DC1223A-B.

If prompted to install the driver for USB Serial Port,

follow step 4. Otherw ise go to the next step.

Exit DC1223A-B if it is launched.

DC1223

Figure 3.

Hardw are Setup betw een a D C1223A-B and a D C486 (can be D C512, D C486, D C286, etc). JP4 should be on VCP.

Figure 4.

Driver Installation

Go to the Computer’s Device manager by choosing

(Start



Control Panel



System



Hardw are tab



Device M anager). Look at the Ports (COM & LPT).

Notice the USB Serial Port (CO M 4). This tells you

that a Virtual Com Port now exists (the USB emu-

lated a R S232 com port) so that you can continue

using the legacy Labview program. See Figure 5.

If the RS232 com port emulated is higher than 4,

please change it to any number betw een 1 and 4 by

right clicking on Ports (CO M & LPT), select the Port

Settings tab and select Advanced… . Change the Com

port number to a number from 1 to 4. See Figure 6.

Launch the softw are for the demo board under

evaluation (eg. DC486) and w hen prompted to enter

the RS232 com port, use the number you obtained

from step 8. If you need a copy of the softw are

please contact Linear Technology Sales Department.

For DC486, you w ill need dc486v2.exe. See Figure 7.

DC1223

Figure 5.

Device M anager

Figure 6.

Change the CO M port that U SB is emulating

Figure 7.

Launch D C486 softw are and select the COM port emulated in step 8.

DC1223

A PPENDIX B: U SING DC1 2 2 3 A -B’S G ENERA L U SER INTERF A CE

M ake sure you have the latest version of DC1223A-

B.zip. Do not connect the U SB cable to the PC yet.

Install the DC1223A-B.msi softw are if not already

done. Please contact Linear Technology Sales De-

partment if you need a copy of the softw are.

NOTE

. For

W indow s Vista users, please follow the instructions available in the

DC1223A-B.zip folder. Read the “Installing DC1223AB_Vista.htm” file.

M ove JP4 of D C1223A-B to Direct if it is not already

done. This is very important!

Connect the hardw are the same w ay as show n in the

previous section (Figure 3).

NOTE.

It is not necessary to use a DC486. Any SM Bus device w ith SCL,

SDA, GND can be connected to DC1223A-B via the P2 connector. For

example you can use a Smart Battery as a SM Bus device as show n in

Figure 8. Smart Battery is a M aster/Slave device.

Figure 8.

SCL, SD A, G N D connections to any SM Bus D evice

You may be prompted w ith a Hardw are Driver Instal-

lation w indow w hen the USB cable is connected to

the PC. If prompted to install the driver for LTC

ON BOAR D R S232 CN TLR, select “Install from a list

or specific location (Advanced)” and type in the path

for “C:\Program Files\LTC\DC1223A-B\driver” and

follow the instructions to install the driver com-

pletely. If asked to overw rite driver, say Yes.

Launch DC1223A-B_M onitor.exe.

A General User Interface w indow appears as show n

in Figure 9. Input the Slave Address and the com-

mands to talk to the Smart Battery or LTC1760.

HEX

is the Slave address of the Smart battery. A

HEX

device command is the AlarmW arning() com-

mand sent to the battery. The read w ord result is

00C0

HEX

, meaning no Alarms raised except that the

battery is currently discharging. For more informa-

tion about the meaning of device command 16

HEX

to View



SBS



SBS Table.

To go into SM Bus M onitor mode, go to Tools



M onitor. You w ill see the w indow s in Figure 10. For

more detail instructions go to Help



H elp Topics.

Figure 9.

General User Interface for SM Bus communication

DC1223

Figure 10.

General User Interface SM Bus M onitor mode

DC1223

A PPENDIX C: SCH EM A TICS A ND BIL L OF M A TERIA L S

Table 1.

Bill of Material for the DC1223A-B

ITEM

QTY REFERENCE PART DESCR IPTION M ANU FACTU R ER / PAR T #

1 15 C1-C3,C5-C11,C13-C16,C18 Cap., X7R 0.1uF 16V 10% AVX 0603YC104KAT2A

2 1 C4 Cap., X5R 1uF 16V 10% Taiyo Yuden EM K107BJ105KA-T

3 1 C12 Cap., X7R 0.01uF 25V 10% AVX 06033C103KAT2A

4 1 C17 Cap., X5R 100uF 6.3V 20% Taiyo Yuden JM K325BJ107M M -T

5 1 C19 Cap., N PO 330pF 25V 5% AVX 06033A331JAT2A

6 1 C20 Cap., X7R 2200pF 1KV 20% AVX 1206AC222M AT2A

7 2 C21, C23 Cap., X5R 22uF 25V 20% AVX 12103D226M AT2A

8 2 C22, C24 Cap., X5R 10uF 10V 10% Taiyo Yuden LM K212BJ106KG-T

9 2 D1,D3 LED, GRN Panasonic LN1351CTR

10 3 D2,D4,D5 Schottky (Comm-Anode) Diode Diode Inc. BAT54A-7-F

11 2 D6,D7 Schottky Diode, Dual SOT23 Diodes Inc. BAT54S-7-F

12 2 E1,E2 Turret, Testpoint M ill M ax 2308-2-00-80-00-00-07-0

13 1 FB1 Ferrite Bead, PbF Stew ard M I0805K400R-10

14 3 JP1-JP3 H eaders, Dbl. Row 2x3 2mm Ctrs. SAM TEC, TM M -103-02-L-D

15 1 JP4 Headers Sq. Post, Dbl. Row 2x3 0.1" Ctrs. SAM TEC, TSW -103-07-L-D

16 1 JP5 Headers, 1x3 2mm Ctrs. Samtec TM M -103-02-L-S

17 1 J1 USB Conn, Type B Receptacle M ill-M ax 897-43-004-90-000000 PbF

18 1 P1 Conn,, DB15-M 2mm AM P Inc. 574-9767-1 PbF

19 1 P2 Headers, Dbl. Row 0.1Ctrs. Samtec TSW -112-07-L-D

20 1 Q1 XSTR . NPN 40V 350M W SM D SOT23 Diodes Inc. M M BT3904-7-F

21 2 Q2,Q3 M O SFET, N -CH. 60V 115M A SOT23 Diodes Inc. 2N7002-7-F

22 3 R1,R2,R8 R es., Chip, 15K, 0.1W , 5% , 0603 YAGEO, RC0603JR -0715KL

23 2 R3,R4 Res., Chip, 750, 0.1W , 5% , 0603 YAGEO, RC0603JR -07750R L

24 11 R5,R6,R9,R10,R 12,R16,R 19,R32-

R34,R36 Res., Chip, 10K, 0.1W , 5% , 0603 Panasonic ERJ3GEYJ103V

25 2 R7,R37 Res., Chip, 49.9K, 1/16W , 1% , 0603 YAGEO, RC0603FR-0749K9L

26 1 R11 Res., Chip, 5.1K, 0.1W , 5% , 0603 Panasonic ERJ-3GEYJ512V

27 1 R13 Res., Chip, 5.11K, 1/16W , 1% , 0603 YAGEO, RC0603FR-075K11L

28 1 R14 Res., Chip, 80.6, 1/16W , 1% , 0603 YAGEO, RC0603FR-0780R 6L

29 3 R15,R26,R 29 Res/Jumper, Chip, 0, 1 AM P, 0603 YAGEO, R C0603FR-070RL

30 0 R17 (Opt) Res/Jumper, Chip, 0, 1 AM P, 1206 YAGEO, R C1206FR-070RL

31 2 R18,R25 Res., Chip, 1.5K, 0.1W , 5% , 0603 YAGEO, RC0603JR -071K5L

32 1 R20 Res., Chip, 100K, 0.1W , 5% , 0603 VISHAY, CRCW 0603100KJNEA

33 2 R21,R28 Res., Chip, 1M , 0.1W , 5% , 0603 YAGEO, RC0603JR -071M L

34 1 R22 Res., Chip, 470, 0.1W , 5% , 0603 YAGEO, R C0603JR -07470RL

35 2 R23,R24 Res., Chip, 27, 0.1W , 5% , 0603 YAGEO, RC0603JR -0727RL

36 0 R27,R31 (O pt) Res/Jumper, Chip, 0, 1 Amp YAGEO, RC0603FR-070RL

37 1 R30 Res., Chip, 2.2K, 0.1W , 5% , 0603 YAGEO, RC0603JR -072K2L

38 1 R35 Res., Chip, 16.9K, 0.1W , 1% , 0603 VISH AY, CRCW 060316K9FKEA

39 1 R38 Res., Chip, 26.7K, 0.1W , 1% , 0603 YAGEO , R C0603FR-0726K7L

40 1 R39 Res., Chip, 102K, 0.1W , 1% , 0603 YAGEO, RC0603FR-07102KL

41 1 R40 Res., Chip, 41.2K, 0.1W , 1% , 0603 YAGEO , R C0603FR-0741K2L

42 1 S1 SW ITCH, EVQPJS05K Panasonic EVQ PJS05K

43 1 T1 Transformer, 2.5:1:1 Pulse PA0510NLT

DC1223

44 1 U1 I.C., SM Bus Accelerator Linear Tech. Corp. LTC1694CS5

45 1 U2 I.C., Analog M ultiplexer Texas Inst. SN74LV4052ADRE4

46 1 U3 lot#422706.1, d/c0651 I.C., 3-Supply M onitor Linear Tech. Corp. LTC1326CS8

47 1 U4 I.C., M icroController,(#FW 410V3) PRO GR AM M ICR OCHIP, PIC16F76-I/SO

48 1 U5 I.C., Low Pw r. Resistor Set Osc. Linear Tech. Corp. LTC1799CS5

49 1 U6 I.C., Serial Data Transfer Future Tech.Devices Int'l FT232BL(PbF)

50 1 U7 I.C., Isolator Narrow Body AVAGO Tech. HCPL-091J-000E (PbF)

51 1 U8 lot#427266.4, d/c0703 I.C., EEPR OM M icroChip 93C46B-I/M S

52 1 U9 lot#410137.1, d/c0636 I.C., DC/DC XFM R Driver Linear Tech. Corp. LT3439EFE

53 1 U10, lot#398534.2, d/c0622 I.C., LDO REGULATO R Linear Tech. Corp. LT1761ES5-SD

54 1 U11 I.C., Low Dropout W /Shutdow n Linear Tech. Corp. LT1121CS8-5

55 3 XJP1 - XJP2, XJP5 Shunt, 2mm Ctrs. Samtec 2SN-BK-G

56 1 XJP4 Shunt, 2 x 2 0.1" Ctrs. Samtec M NT-102-BK-G

57 1 Y1 Cer. Resonator, 6M H z muRata CSTCR6M 00G15L**-R0

58 4 M TG 4 CORNER S STAND-OFF, N YLON, 0.25" TALL KEYSTON E, 8831 (SN AP O N )

59 1 CABLE A-B M ALE DBL SHIELD 2M ASSM AN N ELECTRONICS AK672

60 1 FAB, PRINTED CIR CU IT BO AR D DEM O CIRCUIT 1223A Rev2

61 1 STENCIL: ST-1223A-R ev0 STENCIL 1223A

62 1 3781-12-0 Pomona M iniGrabber Patch Cord Black

63 1 3781-12-6 Pomona M iniGrabber Patch Cord Blue

64 1 3781-12-9 Pomona M iniGrabber Patch Cord W hite

DC1223