Ordering number : ENA2173 LC709202F CMOS LSI 1-Cell Li+ (lithium-ion) http://onsemi.com Battery Monitor IC 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) unit : mm (typ) 3318 TOP VIEW SIDE VIEW (0.125) 2.6 Features Precision ±7.5mV/Cell Voltage Measurement 0.4 2.6 (C0.116) 2 (0.55) SIDE VIEW 0.25 (0.035) A current sensing resistor is unnecessary. Alert function 1 0.5 LASER MARKED INDEX 0.8 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. BOTTOM VIEW (0.13) • Wireless Handsets • Smartphones/PDA devices • MP3 players • digital cameras • Portable Game Players • USB-related devices Package Dimensions 16 Applications VCT16(2.6X2.6) 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 * I2C Bus is a trademark of Philips Corporation. Semiconductor Components Industries, LLC, 2013 April, 2013 40313HKIM 20130314-S00002 No.A2173-1/10 LC709202F Ports • I2C communication pin • Battery temperature reading control pin • Analog voltage input pin for battery temperature • External alarm / Interrupt for Low-Battery warning • Reset pin • TEST pin • Power supply pin 2 (SDA, SCL) 1 (TSW) 1 (TSENSE) 1 (ALARMB) 1 (RESB) 3 (TEST0, TEST1, TEST2) 3 (VSS, VDD1, VDD2) Package form • VCT16 (2.6×2.6) : Lead-free type TSW TSENSE SDA SCL Pin Assignment 12 11 10 9 NC 15 TEST2 16 LC709202FRD 1 2 3 4 VDD1 14 TEST0 NC VSS 13 RESB VDD2 8 TEST1 7 NC 6 NC 5 ALARMB Top view 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 active low output used to indicate specified condition thresholds 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 10 TSENSE I 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” *Set high when reading in the temperature, held low at other times. Battery temperature analog voltage input pin No.A2173-2/10 LC709202F Block Diagram No.A2173-3/10 LC709202F Absolute Maximum Ratings at Ta=25°C, VSS=0V Specification Parameter Symbol Pin/Remarks Conditions Unit VDD[V] Maximum supply VDD max VDD1, VDD2 Input voltage VI (1) RESB, TSENSE Output voltage Vo (1) TSW Vo (2) ALARMB Input/output voltage VIO (1) SDA, SCL Allowable power Pd max VCT16 min voltage typ max -0.3 +6.5 -0.3 VDD1 +0.3 -0.3 VDD1 +0.3 -0.3 -0.3 +5.5 Ta=-40 to+85°C 55 dissipation Operating ambient Topr temperature Storage ambient V -40 +85 -55 +125 mW °C Tstg temperature Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Allowable Operating Conditions at Ta= -40 to +85°C, VSS=0V Specification Parameter Symbol Pin/Remarks Conditions unit VDD[V] Operating supply VDD (1) VDD1 voltage VIH (1) TSENSE VIH (2) RESB VIH (3) SDA, SCL Low level input voltage VIL (1) TSENSE VIL (2) RESB VIL (3) SDA, SCL VDD2=1.6V to 5.5V VDD2=1.6V to 5.5V typ max 2.5 4.5 2.5 to 4.5 0.70VDD1 VDD1 2.5 to 4.5 0.75VDD1 VDD1 2.5 to 4.5 0.70VDD2 VDD2 2.5 to 4.5 VSS 0.25VDD1 2.5 to 4.5 VSS 0.25VDD1 2.5 to 4.5 VSS 0.30VDD2 voltage High level input min V No.A2173-4/10 LC709202F Electrical Characteristics at Ta= -40 to +85°C, VSS=0V Specification Parameter Symbol Pin/Remarks Conditions Unit VDD[V] High level input IIH (1) RESB current VIN=VDD1 (including output transistor off min typ max 2.5 to 4.5 1 2.5 to 4.5 1 leakage current) IIH (2) SDA, SCL VIN=VDD2 VDD2=1.6V to 5.5V (including output transistor off μA leakage current) Low level input IIL (1) RESB current VIN=VSS (including output transistor off 2.5 to 4.5 -1 2.5 to 4.5 -1 IOH=-0.4 mA 3.0 to 4.5 VDD-0.4 IOH=-0.2 mA 2.5 to 4.5 VDD-0.4 IOL=3.0 mA 3.0 to 4.5 0.4 IOL=1.3 mA 2.5 to 4.5 0.4 leakage current) IIL (2) SDA, SCL VIN=VSS VDD2=1.6V to 5.5V (including output transistor off leakage current) High level output voltage Low level output voltage Hysteresis voltage Pin capacitance VOH (1) TSW VOH (2) VOL (1) VOL (2) TSW, ALARMB, SDA, SCL VHYS(1) RESB VHYS(2) SDA, SCL CP All pins 2.5 to 4.5 0.1VDD1 2.5 to 4.5 0.1VDD2 2.5 to 4.5 10 Normal Mode 2.5 to 4.5 15 26 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 Ta= +25°C 3.6 -7.5 +7.5 2.5 to 4.5 -20 +20 Pins other than the pin under test VIN=VSS Ta=25°C Consumption current (Note 1) Voltage measurement accuracy V IDD (1) VME (1) VME (2) VDD1 VDD1 Ta= -20°C to +70°C pF μA mV/cell Note 1: Consumption current is a value in the range of -20°C to +70°C No.A2173-5/10 LC709202F I2C Slave Characteristics at Ta=-40 to+85°C, VSS=0V Specification Parameter Symbol Pin/Remarks Conditions unit VDD[V] min max Clock frequency TSCL SCL Bus free time between STOP TBUF SCL, SDA See Fig. 1. 1.3 μs THD:STA SCL, SDA See Fig. 1. 0.6 μs SCL, SDA See Fig. 1. 0.6 μs μs 400 kHz condition and START condition Hold time (repeated) START condition First clock pulse is generated after this interval Repeated START condition TSU:STA setup time 2.5 to 4.5 STOP condition setup time TSU:STO SCL, SDA See Fig. 1. 0.6 Data hold time THD:DAT SCL, SDA See Fig. 1. 0 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 tR tF t LOW t HD:STA μs 0.9 t HD:STA t HD:DAT t HIGH t SU:DAT t SU:STA t SU:STO t BUF P S S P Figure 1 I2C Timing No.A2173-6/10 LC709202F Discharge Characteristics Figure 2 Discharge Characteristics by Temperature Change Figure 3 Discharge Characteristics by Load Change No.A2173-7/10 LC709202F Communication Protocol Communication protocol type: I2C Frequency: 400 kHz Address: 0x16 Bus Protocols S : Start Condition Sr : Repeated Start Condition Rd : Read (bit value of 1) Wr : Write (bit value of 0) A : ACK (bit value of 0) N : NACK (bit value of 1) P : Stop Condition CRC-8 : 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 S Slave Address Wr A Command Code A Sr Slave Address Rd A Data Byte Low A A CRC-8 N P Command Code A … Data Byte High … Write Word Protocol S Slave Address Data Byte Low Acce ss Re ad Wr A A Data Byte High A … CRC-8 A Slave Fu nctio ns Co m mand Co de Ran ge Unit Cell Temperature 0x08 0 to 65535 0.1°K (0.0°C = 2732) Cell Voltage 0x09 0 to 65535 mV Current 0x0A mA Adjustment Pack 8 0x0B -32768 to 32767 0 to 255 Relative State Of Charge 0x0D 0 to 100 % Remaining Capacity 0x0F 0 to 1000 mAh Full Charge Capacity 0x10 1000 mAh IC Version 0x11 Version Adjustment Thermistor 0x12 0 to 65535 0 to 255 bit 0 Hot Start Sleep Mode 0x13 Auto Mode Alarm Low Battery 0x14 Adjustment B 0x15 System Mode Write P 0x16 High : Low : Value Value disable: 0 bit 1 or bit 2 enable: 1 0 to 250 0 to 100 0 to 65535 20mV % B data 0 Nomal Mode data 1 Sleep Mode data 2 bit 4to7 : data 0 to 6 Auto Mode Auto deep bit 0to3 : 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 High : Low : Adjustment Pack 8 High : Low : Adjustment Thermistor 0x08 Hot Start High : Low : High : Sleep Mode 0x55 Auto Mode 0xA5 0 to 100 0x5A 0 to 255 0xAA % Value Value 0 to 255 bit 0 Low : bit 1 disable: 0 bit 2 enable: 1 0xAA55 or Initial Relative State Of Charge 0x09 Alarm Low Battery 0x0A Adjustment B 0x0B 0 to 65535 B Cell Temperature 0x0C 2532 to 3332 (I2C Write Mode) 0xAA55 (Thermistor Mode) 0.1°K (0.0°C = 2732) - High : Low : 0 to 250 0 to 100 20mV(activate under) % (activate under) No.A2173-8/10 LC709202F 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) No.A2173-9/10 LC709202F ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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