ACT2801B Overview
ACT2801/ACT2801B is a space-saving and highperformance low-profile single-chip solution for backup battery pack and standalone battery charger. ACT2801/ACT2801B integrates all the functions that a backup battery pack needs, including switching charger, boost converter and LED indication. ACT2801/ACT2801B operates at 1.1MHz for switching charger and 0.55MHz for boost converter allowing tiny external inductor and...
ACT2801B Key Features
- Dedicated Single Chip Solution for Mobile Power With Minimal ponent Count
- 5V/1.5A Constant Output Current Limit in Boost Mode
- 1.5A Switching Charger Limit
- Programmable 4.1V to 4.35V Battery Voltage
- 95% Boost Efficiency (Vbat=4.1V)
- Adaptive to 10mA-2400mA Input Sources
- Battery Disconnection at Output Short
- <10µA Low Battery Leakage Current at HZ Mode
- Boost Auto Turn-off at No Load and Push Button
- Battery Over Current, Over Voltage, Over
