BQ24172 Overview
Key Specifications
Package: Module
Description
The bq2417x device is a highly integrated standalone Li-Ion and Li-Polymer switched-mode battery charger with two integrated N-channel power MOSFETs. The device offers a constant-frequency synchronous PWM controller with high-accuracy regulation of input current, charge current, and voltage.
Key Features
- 1 1.6-MHz Synchronous Switched-Mode Charger with 4-A Integrated N-MOSFETs
- Up to 94% Efficiency
- 30-V Input Rating with Adjustable Overvoltage Protection – 4.5-V to 17-V Input Operating Voltage Range
- Battery Charge Voltage – bq24170: 1-, 2-, or 3-Cell with 4.2 V/Cell – bq24172: Adjustable Charge Voltage
- Accuracy – ±0.5% Charge Voltage Regulation – ±4% Charge Current Regulation – ±4% Input Current Regulation
