ZHCSDO4B May 2015 – May 2018
PRODUCTION DATA.
NUMBER | NAME | TYPE | DESCRIPTION |
---|---|---|---|
A1 | SRP | IA(1) | Analog input pin connected to the internal coulomb counter where SRP is nearest the CELL– connection. Connect to a 5-mΩ to 20-mΩ sense resistor. |
B1 | SRN | IA | Analog input pin connected to the internal coulomb counter where SRN is nearest the PACK– connection. Connect to a 5-mΩ to 20-mΩ sense resistor. |
C1, C2 | VSS | P | Device ground |
C3 | SE | O | Shutdown Enable output. Push-pull output |
D1 | VCC | P | Regulator output and processor power. Decouple with a 1.0-µF ceramic capacitor to VSS. |
E1 | REGIN | P | Regulator input. Decouple with a 0.1-µF ceramic capacitor to VSS. |
A2 | HDQ | I/O | HDQ serial communications line (Slave). Open-drain |
B2 | TS | IA | Pack thermistor voltage sense (use 103AT-type thermistor). ADC input |
D2 | CE | I | Chip Enable. Internal LDO is disconnected from REGIN when driven low. |
E2 | BAT | IA | Cell-voltage measurement input. ADC input. Recommendation is 4.8 V maximum for conversion accuracy. |
A3 | SCL | I | Slave I2C serial communications clock input line for communication with system (Master). Use with a 10-kΩ pull-up resistor (typical). |
B3 | SDA | I/O | Slave I2C serial communications data line for communication with system (Master). Open-drain I/O. Use with a 10-kΩ pull-up resistor (typical). |
D3, E3 | NC/GPIO | NC | Do not connect for proper operation. Reserved for future GPIO. |