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BQ27520-G3 Datasheet(PDF) 4 Page - Texas Instruments |
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BQ27520-G3 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 47 page  bq27520-G3 SLUSAP0 –DECEMBER 2011 www.ti.com Table 2-1. PIN FUNCTIONS PIN TYPE DESCRIPTION NAME NO. Analog input pin connected to the internal coulomb counter with a Kelvin connection where SRP is nearest the SRP A1 IA PACK– connection. Connect to 5-mΩ to 20-mΩ sense resistor. Analog input pin connected to the internal coulomb counter with a Kelvin connection where SRN is nearest the Vss SRN B1 IA connection. Connect to 5-mΩ to 20-mΩ sense resistor. VSS C1, C2 P Device ground VCC D1 P Regulator output and bq27520-G3 processor power. Decouple with 1μF ceramic capacitor to Vss. REGIN E1 P Regulator input. Decouple with 0.1μF ceramic capacitor to Vss. SOC_INT A2 O SOC state interrupts output. Generates a pulse under the conditions specified by Table 5-6. Open drain output. Battery-good indicator. Active-low by default, though polarity can be configured through the [BATG_POL] bit of BAT_GD B2 O Operation Configuration . Push-pull output. CE D2 I Chip Enable. Internal LDO is disconnected from REGIN when driven low. BAT E2 I Cell-voltage measurement input. ADC input. Recommend 4.8V maximum for conversion accuracy. Slave I2C serial communications clock input line for communication with system (Master). Open-drain I/O. Use with SCL A3 I 10kΩ pull-up resistor (typical). Slave I2C serial communications data line for communication with system (Master). Open-drain I/O. Use with 10kΩ SDA B3 I/O pull-up resistor (typical). Battery Low output indicator. Active high by default, though polarity can be configured through the [BATL_POL] bit of BAT_LOW C3 O Operation Configuration . Push-pull output. TS D3 IA Pack thermistor voltage sense (use 103AT-type thermistor). ADC input. Battery-insertion detection input. Power pin for pack thermistor network. Thermistor-multiplexer control pin. Use with BI/TOUT E3 I/O pull-up resistor >1MΩ (1.8 MΩ typical). 4 DEVICE INFORMATION Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s) :bq27520-G3 |
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