SGM41527.pdf? 4A Synchronous 1.6MHz PWM Charger
Cycle-by-Cycle Current Limit
Integrated 24V Switching MOSFETs
Integrated Bootstrap Diode
Digital Soft-Start
? Up to 95.2% Charge Efficiency
? 30V Absolute Maximum Input Voltage Rating with
Adjustable Over-Voltage Threshold
? 4.5V to 22V Input Operating Voltage Range
? Automatic Power Path Selector (Battery/Adapter)
? Dynamic Power Management (DPM)
? Battery Charge Voltage Select 2-, 3-, or
4-Cell with 4.2V/Cell
? Less than 18μA Battery Current (No Adapter)
? Less than 1.3mA Input Current (Charge Disabled)
? High Accuracy
±0.5% Charge Voltage Regulation
±4% Charge Current Regulation
±4% Input Current Regulation
? Thermal Regulation (Current Limit for TJ = +120°C)
? Thermal Shutdown
? Battery Thermistor Sense Hot/Cold Charge Suspend
? Input Under-Voltage Lockout (UVLO)
? Input Over-Voltage (ACOV) Protection
? Wide input voltage: 4V~24V, 30V sustainable
? Integrated low-Rdson synchronous buck
charger, efficiency up to 97%
? Charging Management (Trickle Charge / Constant
Current Charge / Constant Voltage Charge /
Charge Termination/Auto-Recharge)
? Adjustable Input Current Limit and Charging Current
? Adjustable Constant Voltage by External Resistor setting
? FB version: 2.1V for 1 to 4 cells battery
? Powerpath management for System Power Selector
? Battery Detection
? Adjustable Charge Safety Timer
? NTC supporting JEITA Standard for Battery
temperature Protection
? Charging Status Indication
? Adjustable Input Over Voltage and Under Voltage Protection
? Battery Over Voltage Protection
? Battery Short Circuit Protection
? Charging Over Current and Under Current Protection
? Thermal Regulation and Shutdown
? QFN 3.5*5.5 footprint
