LC709202FRD-02-2H - ON Semiconductor

40313HKIM 20130314-S00002 No.A2173-1/10

Semiconductor Components Industries, LLC, 2013

April, 2013

http://onsemi.com

LC709202F

Overview

The LC709202F is an IC that measures the remaining power level of 1-cell lithium-ion (Li+) batteries used for a

portable equipment etc.

This product is able to reduce a fuel gauge errors by implementing its unique correction technology for measurement

value of battery temperature and voltage.

It is possible for this to realize high precision for measurement in battery power measurement IC that does not need a

current sensing resistor. (±3% under certain conditions)

Applications Package Dimensions

• Wireless Handsets unit : mm (typ)

• Smartphones/PDA devices 3318

• MP3 players

• digital cameras

• Portable Game Players

• USB-related devices

Features

 Accuracy of remaining battery power level

measurement

• ±3% (at an ambient operating temperature of

0°C to 50°C)

Note: The accuracy above is the value of an

experiment using the evaluation board.

 Precision ±7.5mV/Cell Voltage Measurement

 A current sensing resistor is unnecessary.

 Alert function

 Interface

• I2C Interface (up to 400 kHz supported)

 Low power consumption

• Normal Mode : 15μA

• Sleep Mode : 0.1μA

 Corresponding battery

• Model to be used depending on the material of the electrode of the battery pack + is different.

LC709202F-01: ternary system

LC709202F-02: nickelic acid

Orderin

numbe

: ENA2173

CMOS LSI

1-Cell Li+ (lithium-ion)

Battery Monitor IC

2.6

0.4

0.8

0.25

(0.035)

SIDE VIEW

BOTTOM VIEW

TOP VIEW

LASER MARKED

INDEX 0.5

(0.55)

(C0.116)

(0.13)

(0.125)

VCT16(2.6X2.6)

* I2C Bus is a trademark of Philips Corporation.

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 Ports

• I2C communication pin 2 (SDA, SCL)

• Battery temperature reading control pin 1 (TSW)

• Analog voltage input pin for battery temperature 1 (TSENSE)

• External alarm / Interrupt for Low-Battery warning 1 (ALARMB)

• Reset pin 1 (RESB)

• TEST pin 3 (TEST0, TEST1, TEST2)

• Power supply pin 3 (VSS, VDD1, VDD2)

 Package form

• VCT16 (2.6×2.6) : Lead-free type

Pin Assignment

VCT16 (2.6×2.6) “Lead-free Type”

Pin Function

VCT16 Pin Name I/O Description

1 VSS - Connect to the - terminal of the battery.

2 RESB I Reset pin

3 VDD1 - Connect to the + terminal of the battery.

4 TEST0 I Test pin

*Connect to VSS.

5 ALARMB O Alert indication. An activ e low output used to indicate spe cified condition thre sholds have been met.

*When you do not use an alert function, please connect with VSS.

8 TEST1 O Set “OPEN”

9 TSW O Battery temperature reading control pin

*Set high when reading in the temperature, held low at other times.

10 TSENSE I Battery temperature analog voltage input pin

11 SDA I/O I2C data pin

12 SCL I/O I2C clock pin

13 VDD2 - + power pin for I2C-Bus communication pin(SDA,SCL)

16 TEST2 O Set “OPEN”

Top view

LC709202FRD

TEST1

ALARMB

VDD2

TEST2

VSS

RESB

VDD1

TEST0

123 4

12 11 10 9

SCL

SDA

TSENSE

TSW

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Block Diagram

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Absolute Maximum Ratings at Ta=25°C, VSS=0V

Parameter Symbol Pin/Remarks Conditions Specification

Unit

VDD[V] min typ max

Maximum supply

voltage VDD max VDD1, VDD2 -0.3 +6.5

Input voltage VI (1) RESB, TSENSE -0.3

VDD1

+0.3

Output voltage Vo (1) TSW -0.3

VDD1

+0.3

Vo (2) ALARMB -0.3

Input/output voltage VIO (1) SDA, SCL -0.3 +5.5

Allowable power

dissipation Pd max VCT16 Ta=-40 to+85°C 55 mW

Operating ambient

temperature Topr -40 +85

°C

Storage ambient

temperature Tstg -55 +125

Allowable Operating Conditions at Ta= -40 to +85°C, VSS=0V

Parameter Symbol Pin/Remarks Conditions Specification

unit

VDD[V] min typ max

Operating supply

voltage VDD (1) VDD1 2.5 4.5

High level input

voltage VIH (1) TSENSE 2.5 to 4.5 0.70VDD1 V

DD1

VIH (2) RESB 2.5 to 4.5 0.75VDD1 V

DD1

VIH (3) SDA, SCL VDD2=1.6V to 5.5V 2.5 to 4.5 0.70VDD2 V

DD2

Low level input

voltage VIL (1) TSENSE 2.5 to 4.5 VSS 0.25VDD1

VIL (2) RESB 2.5 to 4.5 VSS 0.25VDD1

VIL (3) SDA, SCL VDD2=1.6V to 5.5V 2.5 to 4.5 VSS 0.30VDD2

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating

C onditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.

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Electrical Characteristics at Ta= -40 to +85°C, VSS=0V

Parameter Symbol Pin/Remarks Conditions Specification

Unit

VDD[V] min typ max

High level input

current IIH (1) RESB VIN=VDD1

(including output transistor off

leakage current) 2.5 to 4.5 1

μA

IIH (2) SDA, SCL VIN=VDD2

VDD2=1.6V to 5.5V

(including output transistor off

leakage current)

2.5 to 4.5 1

Low level input

current IIL (1) RESB VIN=VSS

(including output transistor off

leakage current) 2.5 to 4.5 -1

IIL (2) SDA, SCL VIN=VSS

VDD2=1.6V to 5.5V

(including output transistor off

leakage current)

2.5 to 4.5 -1

High level output

voltage VOH (1) TSW IOH=-0.4 mA 3.0 to 4.5 VDD-0.4

VOH (2) IOH=-0.2 mA 2.5 to 4.5 VDD-0.4

Low level output

voltage VOL (1) TSW,

ALARMB,

SDA, SCL

IOL=3.0 mA 3.0 to 4.5 0.4

VOL (2) IOL=1.3 mA 2.5 to 4.5 0.4

Hysteresis

voltage VHYS(1) RESB 2.5 to 4.5 0.1VDD1

VHYS(2) SDA, SCL 2.5 to 4.5 0.1VDD2

Pin capacitance CP All pins Pins other than the pin under

test

VIN=VSS

Ta=25°C

2.5 to 4.5 10 pF

Consumption

current

(Note 1)

IDD (1) VDD1 Normal Mode 2.5 to 4.5 15 26

μA

IDD (2) Auto Mode 2.5 to 4.5 2 to 15 4 to 26

IDD (3) Sleep Mode 2.5 to 4.5 0.1 5

Voltage

measurement

accuracy

VME (1) VDD1 Ta= +25°C 3.6 -7.5 +7.5 mV/cell

VME (2) Ta= -20°C to +70°C 2.5 to 4.5 -20 +20

Note 1: Consumption current is a value in the range of -20°C to +70°C

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I2C Slave Characteristics at Ta=-40 to+85°C, VSS=0V

Parameter Symbol Pin/Remarks Conditions

Specification

unit

VDD[V] min max

Clock frequency TSCL SCL

2.5 to 4.5

400 kHz

Bus free time between STOP

condition and START

condition

TBUF SCL, SDA See Fig. 1. 1.3 μs

Hold time (repeated) START

condition

First clock pulse is generated

after this interval

THD:STA SCL, SDA See Fig. 1. 0.6 μs

Repeated START condition

setup time TSU:STA SCL, SDA See Fig. 1. 0.6 μs

STOP condition setup time TSU:STO SCL, SDA See Fig. 1. 0.6 μs

Data hold time THD:DAT SCL, SDA See Fig. 1. 0 0.9 μs

Data setup time TSU:DAT SCL, SDA See Fig. 1. 100 ns

Clock low period TLOW SCL 1.3 μs

Clock high period THIGH SCL 0.6 μs

Clock/data fall time TF SCL, SDA 20 + 0.1CB 300 ns

Clock/data rise time TR SCL, SDA 20 + 0.1CB 300 ns

Figure 1 I2C Timing

HD:ST

SU:STO

BUF

LOW

HD:DA

HIG

SU:DA

SU:STA

HD:STA

PS SP

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Discharge Characteristics

Figure 2 Discharge Characteristics by Temperature Change

Figure 3 Discharge Characteristics by Load Change

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Communication Protocol

Communication protocol type: I2C

Frequency: 400 kHz

Address: 0x16

Bus Protocols

:StartCondition

:Repeated Start Condition

:Read (bit value of 1)

:Write (bit value of 0)

:ACK (bit value of 0)

:NACK (bit value of 1)

:Stop Condition

:Slave Address to Last Data (CRC-8-ATM :ex.3778mV :0x16,0x09,0x17,0xC2,0x0E 0x86)

:Master-to-Slave

:Slave-to-Master

:Continuation of protocol

Read Word Protocol

Write Word Protocol

…

CRC-8

…

Rd A Data Byte Low A

Slave Address Wr A Command Code A

Command Code A

Data Byte High …

A CRC-8 N P

Sr Slave Address

…

Data Byte Low A Data Byte High A CRC-8

SSlaveAddressWrA

Access Slave Functions Command Code Range Unit

Read

Cell Temperature 0x08 0 to 65535 0.1°K (0.0°C= 2732)

CellVoltage 0x09 0 to 65535 mV

Current 0x0A -32768 to 32767 mA

Adjustment Pack 8 0x0B 0 to 255 Value

Remaining Capacity 0x0F 0 to 1000 mAh

Relative State Of Charge 0x0D 0 to 100 %

Full Charge Capacity 0x10 1000 mAh

IC Version 0x11 0 to 65535 Version

Adjustment Thermistor 0x12 0 to 255 Value

Hot Start 0x13 bit 0 disable:0

enable:1

Sleep Mode bit 1

Auto Mode bit 2

Alarm Low Battery 0x14 High :0to 250 20mV

Low :0to 100 %

Adjustment B 0x15 0 to 65535 B

System Mode 0x16 bit 0to3:data 0 Nomal Mode

data 1 Sleep Mode

data 2 Auto Mode

bit 4to7:data 0 to 6Auto deep

Write

Adjustment Pack 0 0x00 0 to 32767 Value

Adjustment Pack 1 0x01 0 to 32767 Value

Adjustment Pack 2 0x02 0 to 32767 Value

Adjustment Pack 3 0x03 0 to 32767 Value

Adjustment Pack 4 0x04 0 to 32767 Value

Adjustment Pack 5 0x05 0 to 32767 Value

Set Relative State Of Charge

0x08

High :0xA5 -

Low :0to 100 %

Adjustment Pack 8 High :0x5A -

Low :0to 255 Value

Adjustment Thermistor High :0xAA -

Low :0to 255 Value

Hot Start High :

0x55 Low :bit 0 disable:0

enable:1

Sleep Mode bit 1

Auto Mode bit 2

Initial Relative State Of Charge 0x09 0xAA55 -

Alarm Low Battery 0x0A High :0to 250 20mV(activate under)

Low :0to 100 % (activate under)

Adjustment B 0x0B 0 to 65535 B

Cell Temperature 0x0C 2532 to 3332 (I2C Write Mode) 0.1°K (0.0 = 2732)

0xAA55 (Thermistor Mode) -°C

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Application Circuit Example

Figure 4 Example of an application schematic using LC709202F

(not use temperature detection function)

Figure 5 Example of an application schematic using LC709202F

(use temperature detection function)

LC709202F

PS No.A2173-10/10

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