SGM41526
SGM41526 is 1.6MHz Synchronous Li-Ion and Li-Polymer Stand-Alone Battery Chargers manufactured by SG Micro.
FEATURES
- 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
- SGM41526: Select 2-, 3-, or 4-Cell with 4.2V/Cell
- SGM41527: Adjustable Charge Voltage
- 18μA Battery Current (No Adapter)
- 1.3m A Input Current (Charge Disabled)
- High Accuracy
- ±0.4% Charge Voltage Regulation
- ±5% Charge Current Regulation
- ±4% Input Current Regulation
- Safety
- Thermal Regulation (Current Limit for TJ = +120℃)
- Thermal Shutdown
- Battery Thermistor Sense Hot/Cold Charge Suspend
- Input Under-Voltage Lockout (UVLO)
- Input Over-Voltage (ACOV) Protection
APPLICATIONS
Tablet PCs Portable Terminals and Printers Portable Medical Equipment Battery Backup Systems
TYPICAL APPLICATION
12V Adapter
Input
IIN VIN
Q1
Q2
RAC 10mΩ
VSYS
IOUT System
RIN 2Ω
CIN...
