BQ24133 Overview
The BQ24133 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. The BQ24133 closely monitors the battery pack temperature to allow charge only in a preset temperature window.
BQ24133 Key Features
- 1.6-MHz Synchronous switched-mode charger
- Up to 92% efficiency
- 30-V Input rating with adjustable overvoltage
- 4.5-V to 17-V Input operating voltage
- Battery charge voltage
- 1-Cell, 2-cell, or 3-cell with 4.2 V/cell
- High integration
- Automatic Power Path selector between
- Dynamic power management
- Integrated 20-V switching MOSFETs