BQ24157S
Description
The bq24157S is a pact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I2C interface.
Key Features
- 1 Integrated Power FETs for up to 1.55-A Charge Rate
- Spread Spectrum Frequency Control for Improved EMI Performance
- Factory Test-Mode for GSM Calibration Without a Battery
- Input Voltage Based Dynamic Power Management (VIN DPM)
- Bad Adaptor Detection and Rejection
- Safety Limit Register for Maximum Charge Voltage and Current Limiting
- High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
- 20-V Absolute Maximum Input Voltage Rating
- 6.5-V Maximum Operating Input Voltage
- Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle
