Ordering number : ENA2031 LC709201F CMOS IC Battery Monitor IC Overview The LC709201F is an IC that measures the remaining power level of 1-cell lithium-ion secondary batteries by monitoring the battery voltage without an external sense resistor, and detects the remaining battery power level by current prediction. It monitors the battery voltage and realizes a function that precisely measures the remaining battery charge. In addition, the IC realizes the function for calculating the remaining battery power level even more accurately by utilizing a temperature correction function that makes use of the temperature input from a thermistor. Features Accuracy of remaining battery power level measurement • Accuracy of ±5% during discharging from 100% to 0% (at an ambient operating temperature of 0°C to 50°C) Measurement of remaining battery power level • The remaining power level is measured four times a second and calculated with each measurement undertaken. Interface • I2Cbus, communication in slave mode up to 100kHz supported Ports • I2C-bus communication pin • Battery temperature reading control pin • Analog voltage input pin for battery temperature • Reset pin • TEST pin • Power supply pin 2 (SDA, SCL) 1 (TSW) 1 (TSENSE) 1 (RESB) 1 (TEST) 2 (VSS, VDD) Package form • MFP10S (225 mil): LC709201FM-01/02/03 • VCT16 (2.6×2.6): LC709201FRD-01/02/03 Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for new introduction or other application different from current conditions on the usage of automotive device, communication device, office equipment, industrial equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer ' s products or equipment. Ver.1.5 32812HKIM 20120307-S00004 No.A2031-1/10 LC709201F Applications • Cell phones, PDA devices, MP3 players, cordless phones, digital cameras, USB-related devices, etc. (Note) Depending on the kinds of battery, applicable model differs (LC709201F-01/02/03). Please contact us for more detail information. Package Dimensions unit : mm (typ) 3086B 5 6.4 1 1.7max 4.4 6 0.63 5.0 10 0.1 (1.5) 0.15 0.35 1.0 (0.5) SANYO : MFP10S(225mil) Package Dimensions unit : mm (typ) 3318 TOP VIEW SIDE VIEW BOTTOM VIEW (0.125) (0.13) 2.6 16 0.4 2.6 (C0.116) 2 1 0.5 LASER MARKED INDEX (0.55) 0.25 (0.035) 0.8 SIDE VIEW SANYO : VCT16(2.6X2.6) No.A2031-2/10 LC709201F Pin Assignment NC 1 10 SCL 9 SDA VSS 2 RESB 3 8 TSENSE VDD 4 7 TSW TEST 5 6 NC LC709201FM Top view TSW TSENSE SDA SCL SANYO: MFP10S (225mil) “Lead-free Type” 12 11 10 9 NC 13 8 NC NC 14 7 NC 6 NC 5 NC 1 2 3 4 VDD TEST 16 RESB NC VSS NC LC709201FRD 15 Top view SANYO: VCT16 (2.6×2.6) “Lead-free Type” No.A2031-3/10 LC709201F SCL SDA Block Diagram 2 IC interface Remaining voltage Processing Unit Voltage detect TSENSE Pin Function Pin Name I/O Description VSS - - power pin VDD - + power pin RESB I Reset pin TEST I/O Test pin *Connect an external 100kΩ pull-down resistor. SDA I/O I2C data pin SCL I/O I2C clock pin TSW O Battery temperature reading control pin *Set high when reading in the temperature, held low at other times. TSENSE I Battery temperature analog voltage input pin No.A2031-4/10 LC709201F Absolute Maximum Ratings at Ta=25°C, VSS=0V Parameter Symbol Pin/Remarks Specification Conditions VDD[V] Maximum supply VDD max VDD Input voltage VI (1) RESB, TSENSE Output voltage VO (1) TSW Input/output voltage VIO (1) SDA, SCL, TEST Allowable power Pd max MFP10S voltage dissipation Operating ambient min Unit max -0.3 +6.5 -0.3 VDD +0.3 -0.3 VDD +0.3 -0.3 VDD +0.3 Ta=-40 to +85°C 110 VCT16 V mW 55 Topr temperature Storage ambient typ -40 +85 -55 -125 °C Tstg temperature Allowable Operating Conditions at Ta=-40 to +85°C, VSS=0V Parameter Symbol Pin/Remarks Specification Conditions VDD[V] Operating supply VDD (1) VDD VIH (1) SDA, SCL 2.25 to 5.5 voltage Low level input VIL (1) typ SDA, SCL voltage VIL (2) 5.5 0.3VDD VDD +0.7 4.0 to 5.5 VSS 2.25 to 4.0 VSS unit max 2.25 voltage High level input min V 0.1VDD +0.4 0.2VDD Electrical Characteristics at Ta=-40 to +85°C, VSS=0V Parameter Symbol Pin/Remarks Specification Conditions VDD[V] High level input IIH (1) current RESB, SDA, SCL VIN=VDD (including output transistor off min typ Unit max 2.25 to 5.5 1 leakage current) Low level input IIL (1) current RESB, SDA, SCL VIN=VSS (including output transistor off μA 2.25 to 5.5 -1 leakage current) High level output VOH (1) voltage VOH (2) TSW IOH=-0.4mA 3.0 to 5.5 VDD-0.4 IOH=-0.2mA 2.25 to 5.5 VDD-0.4 Low level output VOL (1) TSW, IOL=3.0mA 3.0 to 5.5 0.4 voltage VOL (2) SDA, SCL IOL=1.3mA 2.25 to 5.5 0.4 Hysteresis voltage VHYS RESB, SDA, SCL Pin capacitance CP All pins 2.25 to 5.5 0.1VDD 2.25 to 5.5 10 2.25 to 5.5 8 16 2.25 to 5.5 5 12 V Pins other than the pin under test VIN=VSS f=1 MHz pF Ta=25°C Consumption IDD (1) current VDD When detecting remaining capacity IDD (2) When not detecting remaining capacity μA No.A2031-5/10 LC709201F I2C Slave Characteristics at Ta=-40 to+85°C, VSS=0V Parameter Symbol Pin/Remarks Specification Conditions VDD[V] Clock frequency TSCL SCL Bus free time between TBUF SCL, SDA min typ unit max 100 kHz See Fig. 1. STOP condition and 4.7 μs 4.0 μs 4.7 μs 4.0 μs ns START condition Hold time (repeated) THD: STA SCL, SDA See Fig. 1. START condition First clock pulse is generated after this interval Repeated START TSU: STA SCL, SDA See Fig. 1. TSU: STO SCL, SDA See Fig. 1. 2.25 to 5.5 condition setup time STOP condition setup time Data hold time THD: DAT SCL, SDA See Fig. 1. 300 Data setup time TSU: DAT SCL, SDA See Fig. 1. 250 ns Clock low period TLOW SCL 4.7 μs Clock high period THIGH SCL 4.0 Clock/data fall time TF SCL, SDA 300 ns Clock/data rise time TR SCL, SDA 1000 ns tR tF tLOW tHD:STA μs tHD:STA tHD:DAT tHIGH tSU:DAT tSU:STA tSU:STO tBUF P S S P No.A2031-6/10 LC709201F Discharge Characteristics Figure2 Discharge Characteristics by Temperature Change Figure 3 Discharge Characteristics by Load Change No.A2031-7/10 LC709201F Communication Protocol Communication protocol type: I2C Frequency: 100kHz 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 (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 Data Byte High A CRC-8 N P Wr A Command Code A … … Write Word Protocol S Slave Address Data Byte Low A Data Byte High A CRC-8 A P Slave Functions Command Code Range Access Unit Cell Temperature 0x08 0 to 65535 R 0.1°K Cell Voltage 0x09 0 to 65535 R mV Current 0x0A -32768 to 32767 R mA Value Adjustment Pack 0x0B 0 to 255 R Relative State Of Charge 0x0D 0 to 100 R % Remaining Capacity 0x0F 0 to 65535 R mAh Full Charge Capacity 0x10 0 to 65535 R mAh IC Version 0x11 0 to 65535 R Version Adjustment Thermistor 0x12 0 to 255 R Value Set Relative State Of Charge 0x08 0xA500 + 0 to 100 W 0xA500 + % Adjustment Pack 0x08 0x5A00 + 0 to 255 W 0x5A00 + Value Adjustment Thermistor 0x08 0xAA00 + 0 to 255 W 0xAA00 + Value Initial Relative State Of Charge 0x09 0xAA55 W - No.A2031-8/10 LC709201F Application Circuit Example Figure 4 Example of an application schematic using LC709201F SYSTEM VDD 10kΩ 10kΩ 2 100Ω I C BUS VDD MASTER 100Ω NC TSW TSENSE SDA Battery Pac SCL 10kΩ/100kΩ ASIC LC709201FM PACK- T TEST VDD RESB VSS NC MFP10S (225mil) 1μF PACK+ VSS 0.1μF 100 kΩ SYSTEM VSS Figure 5 Conceptual diagram using LC709201F LC709201FM I2C TSW TSENSE No.A2031-9/10 LC709201F SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein. 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SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of March, 2012. Specifications and information herein are subject to change without notice. PS No.A2031-10/10