bq24726
Representative bq24726 image (package may vary by manufacturer)
Overview
The bq24726 is a high-efficiency, synchronous battery charger, offering low component count for space-constraint, multi-chemistry battery charging applications. The bq24726 utilize charge pump to drive n-channel RBFET to improve system efficiency.
- 2 SMBus Host-Controlled NMOS-NMOS Synchronous Buck Converter with Programmable 615kHz, 750kHz, and 885kHz Switching Frequency
- Internal Charge Pump Driving Reverse Blocking MOSFET (RBFET)
- Real Time System Control on ILIM pin to Limit Charge Current
- Enhanced Safety Features for Over Voltage Protection, Over Current Protection, Battery, Inductor, and MOSFET Short Circuit Protection
- Programmable Input Current, Charge Voltage, Charge Current Limits - ±0.5% Charge Voltage Accuracy up to 19.2V - ±3% Charge Current Accuracy up to 8.128A - ±3% Input Current Accuracy up to 8.064A - ±2% 20x Adapter Current or Charge Current Amplifier Output Accuracy
- Programmable Adapter Detection and Indicator
- Integrated Soft Start
- Integrated Loop Compensation
- AC Adapter Operating Range 5V-24V
- 15µA Off-State Battery Discharge Current
