Texas Instruments Battery Charge Management
Texas Instruments’ BQ25150 battery charge management IC is optimized for wearable devices, integrating a charger, LDO, ADC, and push-button controller in a small package.
The linear charger can supply up to 500mA and has a termination current as low as 0.5mA for fast and accurate charging. The I2C programmable LDO can output from 0.6V to 3.7V at up to 150mA, and also configured as a load switch.
The ADC can monitor charge current, the battery thermistor, voltages, or an external input. The push-button controller can be used for device wakeup and reset and has adjustable timers, eliminating the need for a separate controller.
The BQ25150 has ultra-low quiescent current for maximum battery life and is optimized for a 5V USB input. It uses a 2mm x 1.6mm CSP package with a 12mm2 total solution size.
- Linear charger
- Charge current: 1.25mA to 500mA
- Termination current as low as 0.5mA
- Load switch or 150mA LDO
- I2C programmable
- 0.6V to 3.7V in 100mV steps
- 12-bit effective ADC
- Monitor charge current, battery thermistor, and voltages
- General-purpose ADC input
- Push-button controller for wake-up and reset
- Adjustable timers
- Package: 20-Pin 2mm x 1.6mm CSP
- Total solution size: 12mm2
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