BQ25155 Description
The BQ25155 is a highly integrated battery charge management IC that integrates the most mon functions for wearable and portable devices, namely a charger, a regulated output voltage rail for system power, ADC for battery and system monitoring, a LDO, and push-button controller. The BQ25155 IC integrates a linear charger with PowerPath that enables quick and accurate charging for small batteries while providing a...
BQ25155 Key Features
- 1 Linear battery charger with 1.25-mA to 500-mA fast charge current range
- 0.5% Accurate I2C programmable battery regulation voltage ranging from 3.6 V to 4.6 V in 10-mV steps
- Configurable termination current supporting down to 0.5 mA
- 20-V Tolerant input with typical 3.4-V to 5.5-V input voltage operating range
- Programmable thermal charging profile, fully configurable hot, warm, cool and cold thresholds
- PowerPath management for powering system and charging battery
- I2C Programmable regulated system voltage (PMID) ranging from 4.4V to 4.9V in addition to battery voltage tracking and I
- Dynamic power path management optimizes charging from weak adapters
- Advanced I2C control allows host to disconnect the battery or adapter as needed
- I2C Configurable load switch or up to 150-mA LDO output