SGM41527.pdf? 4A Synchronous 1.6MHz PWM Charger
? Up to 95.2% Charge Efficiency
? Adjustable Over-Voltage Threshold
? 4.5V to 22V Input Operating Voltage Range
? Automatic Power Path Selector (Battery/Adapter)
? Dynamic Power Management (DPM)
? SGM41527: Adjustable Charge Voltage
? Less than 1.3mA Input Current (Charge Disabled)
? High Accuracy
- ±0.5% Charge Voltage Regulation
- ±4% Charge Current Regulation
- ±4% Input Current Regulation
? Safety
- Thermal Shutdown
- Battery Thermistor Sense Hot/Cold Charge Suspend
- Input Under-Voltage Lockout (UVLO)
- Input Over-Voltage (ACOV) Protection
? 1.6-MHz Synchronous Switched-Mode Charger
? Up to 92% Efficiency
? 30V Input Rating With Adjustable OvervoltageProtection
? 1-Cell, 2-Cell, or 3-Cell With 4.2 V/Cell
? High Integration
– Automatic Power Path Selector Between Adapter and Battery
– Dynamic Power Management
– Integrated 20-V Switching MOSFETs
? Adapter and Battery
– Integrated 20-V Switching MOSFETs
– Integrated Bootstrap Diode
– Internal Digital Soft Start
? Safety
– Thermal Shutdown
– Adjustable Input Overvoltage Protection
– Cycle-by-Cycle Current Limit
