BQ25910
Overview
The BQ25910 is an integrated three-level switchmode parallel battery charge management devic.
- 1 Parallel charger operation provides fast charging in dual charger configuration
- High efficiency 750-kHz switch mode three-level buck parallel charger - Reduced ripple to support low profile inductor - 95.4% Charge efficiency at 1.5 A from 5-V input - 93.3% Charge efficiency at 3 A from 9-V input - Superior efficiency compared to traditional buck converter in compact form factor
- Single Input to support USB input and adjustable high voltage adapters - Support 3.9-V to 14-V input voltage range with 20-V absolute maximum input voltage rating - Input current limit (500 mA to 3.6 A with 100mA resolution) to support USB2.0 and USB 3.0 standard and high voltage adaptors - Maximum power tracking by input voltage limit (VINDPM) up to 14 V
- Flexible I2C mode for optimal system performance
- High integration includes all MOSFETs, current sensing and loop compensation - Lossless charge current sensing without sense resistor
- < 10-µA Low battery leakage current during stand- by mode
- High accuracy - ±0.4% Charge voltage regulation - ±10% Charge current regulation - ±7.5% Input current regulation - Remote differential battery sensing
- Safety - Thermal regulation and thermal shutdown - Input UVLO and overvoltage protection - Battery OVP - Input dynamic power management (DPM) - Charging safety timer - Flying capacitor short circuit protection - Output voltage short circuit protection
- Available in 36-ball WCSP package
