PS402-01XX Overview
ground I I O I I I Current sense resistor input External thermistor input Thermistor reference voltage Internal oscillator bias resistor Reserved pins OTP programming voltage RSHP, RSHN VNTC VREFT ROSC RSV1-7 VPP 2003 Microchip Technology Inc. DS21766A-page 1 PS402-01XX 1.0 PRODUCT OVERVIEW The PS402 is a fully integrated IC for battery management that bines a proprietary microcontroller core together with...
PS402-01XX Key Features
- Single chip solution for rechargeable battery management
- Embedded Microchip patented Accuron™ technology provides precise capacity reporting (within 1%) for all rechargeable bat
- User configurable and "learned" parameters stored in on-chip 128 x 8 EEPROM; fully field re-programmable via SMBus inter
- 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