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
