PS402-01XX
Features
- Single chip solution for rechargeable battery management
- Embedded Microchip patented Accuron™ technology provides precise capacity reporting (within 1%) for all rechargeable battery chemistries
- User configurable and "learned" parameters stored in on-chip 128 x 8 EEPROM; fully field re-programmable via SMBus interface
- Integrating sigma-delta A/D converter accurately measures:
- Current through sense resistor (15-bits)
- High voltage (18V) battery cells directly connected to pack voltage input (11-bits)
- Temperature measurement from on-chip sensor or optional external thermistor (11-bits)
- Integrated precision silicon time base
- Eight individually programmable input/output pins that can be assigned as
- Charge control I/O
- Safety function I/O
- SOC LED output drive pins
- General purpose I/O
- Full SMBus v1.1 2-wire host interface
- Microchip firmware in 12 Kbytes of customizable on-chip OTP EPROM
Pin Description
VDDD GPIO(4) GPIO(5) GPIO(6) GPIO(7) SMB-CLK SMB-DTA...
