1 Features

AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C ≤ T_A ≤ 125°C
- HBM ESD classification level 2
- CDM ESD classification level C4B
40-V load-dump tolerant to support charging back-up battery directly from main battery, 3-V to 18-V operating
Automatic Sleep Mode for low power consumption
- 350-nA battery leakage current
- 2-µA input leakage current when charge disabled
Support multi-chemistry battery
- 1- to 2-cell Li-Ion, Li-Poly, and LiFePO₄
- 1- to 6-cell NiMH with intermittent-charging support
External resistor programmable operation
- VSET to set battery regulation voltage from 3.5 V to 8.4 V for Li-Ion, or 1- to 6-cell for NiMH
- ISET to set charge current from 10 mA to 800 mA
- CHM_TMR to set battery chemistry as Li+ or NiMH, and charge timer duration
High accuracy
- ±0.5% charge voltage accuracy
- ±10% charge current accuracy
Charging features
- Precharge current 20% of ISET
- Termination current 10% of ISET
- NTC thermistor input to monitor battery temperature
- CE pin for charging function control
- Two Open-drain output for status and fault indication
Integrated fault protection
- 18-V IN overvoltage protection
- VSET based OUT overvoltage protection
- 1000-mA overcurrent protection
- 125°C thermal regulation; 150°C thermal shutdown protection
- OUT short-circuit protection
- VSET, ISET, CHM_TMR pins short/open protection