BQ24257 Description
The bq2425x is a highly integrated single-cell Li-Ion battery charger with integrated current sense resistor targeted for space-limited, portable applications with high capacity batteries. The single cell charger has a single input that operates from either a USB port or AC wall adapter for a versatile solution. BC1.2 patible D+, D- detection allows for recognition of CDP, DCP, SDP, and non-standard USB adapters.
BQ24257 Key Features
- High-efficiency Switch-mode Charger with Integrated Current Sense Resistor
- BC1.2 D+, D- Detection with Dead Battery Provision (DBP) Pin-to-Sync with External USBPHI
- USB Charging pliant
- Selectable Input Current Limit of 100 mA
- Watchdog Timer with Disable Bit
- Integrated 4.9-V, 50-mA LDO
- plete System Level Protection
- Input UVLO, Input Overvoltage Protection (OVP), Battery OVP, Sleep Mode, VIN_DPM
- Input Current Limit
- Charge Current Limit