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BQ27741YZFT-G1 Datasheet(PDF) 2 Page - Texas Instruments |
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BQ27741YZFT-G1 Datasheet(HTML) 2 Page - Texas Instruments |
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2 / 38 page  CSP-15 (TOP VIEW) CSP-15 (BOTTOM VIEW) A1 A2 A3 B1 B2 C1 C2 C3 B3 D1 D2 D3 E1 E3 A1 A2 A3 B1 B2 C1 C2 C3 B3 D1 D2 D3 E1 E2 E3 E2 BOTTOM VIEW SRP CHG DSG SRN RA0 VPWR BAT SDA PACKP RC2 VSS HDQ SCL TS REG25 3 2 1 A B C D E bq27741-G1 SLUSBF2A – JULY 2013 – REVISED SEPTEMBER 2013 www.ti.com DEVICE INFORMATION bq27741 PIN DIAGRAM (TOP VIEW) Table 1. Terminal Functions TERMINAL TYPE(1) DESCRIPTION PIN NAME A1 SRP IA Analog input pin connected to the internal coulomb counter where SRP is nearest the PACK+ connection. Connect to sense resistor. A2 CHG O External high side N-channel charge FET driver. A3 DSG O External high side N-channel discharge FET driver. B1 SRN IA Analog input pin connected to the internal coulomb counter where SRN is nearest the CELL+ connection. Connect to sense resistor. B2 RA0 IO General Purpose IO. Open-drain I/O. B3 PACKP IA Pack voltage measurement input for protector operation. C1 VPWR P Power input. Decouple with 0.1-µF ceramic capacitor to VSS. C2 BAT IA Cell-voltage measurement input. ADC input. C3 SDA IO Slave I2C serial communications data line for communication with system. Open-drain I/O. Use with 10-k Ω pullup resistor (typical). D1 VSS P Device ground. D2 HDQ IO HDQ serial communications line. Open-drain. D3 RC2 IO General purpose IO. Push-pull output. E1 REG25 P Regulator output and bq27741-G1 processor power. Decouple with 1.0-µF ceramic capacitor to VSS. E2 TS IA Pack thermistor voltage sense (use 103AT-type thermistor). ADC input. E3 SCL IO Slave I2C serial communications clock input line for communication with system. Use with 10-k Ω pullup resistor (typical). (1) IO = Digital input-output, IA = Analog input, P = Power connection, O = Output 2 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links: bq27741-G1 |
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