The SGM41600A is an efficient 8A switched-capacitor battery charging device with I2 C control that can operate either in charge-pump voltage divider mode or in bypass mode. It can charge single-cell Li-Ion or Li-polymer battery in a wide 3.4V to 11.5V input voltage range (VBUS) from smart wall adapters or power banks. The switched-capacitor architecture is optimized for 50% duty cycle to cut the input current to one-half of the battery current and reduce the wiring drops, losses and temperature rise in the application. A two-channel switched-capacitor topology is used to reduce the required input capacitors, improve efficiency and minimize the output ripple. Necessary protection features for safe charging performance including input over-voltage protection by external OVPFET (QOVP) and input reverse blocking (using an internal NFET) are provided. The SGM41600A is available in a Green WLCSP -2.8×2.8-36B package and can operate in the -40℃ to +85℃ ambient temperature range.
● Efficiency Optimized Switched-Capacitor Architecture
Up to 8A Output Current
3.4V to 11.5V Input Voltage Range
300kHz to 900kHz Switching Frequency Setting
Above 96.6% Voltage Divider Mode Efficiency (when VBAT = 4V, IBAT = 6A, CFLY = 3 × 22μF per Phase)
● Comprehensive Integrated Protection Feature
External OVP Control and Regulation
Input Over-Voltage Protection (VBUS_OVP)
Input Short-Circuit Protection (VBUS_SC)
Input Over-Current Protection (IBUS_OCP)
Input Under-Current Protection (IBUS_UCP)
Battery Over-Voltage Protection (VBAT_OVP)
Output Short-Circuit Protection (VOUT_SC)
IBAT Over-Current Protection (IBAT_OCP)
CFLY Short-Circuit Protection (CFLY_SC)
Switch Peak Over-Current Protection (PEAK_OCP)
Die Over-Temperature Protection (TDIE_OTP)
● 6-Channel 12-Bit (Effective) ADC Converter
VBUS, IBUS, VBAT, IBAT, VOUT, TDIE for Monitoring
Smart Phone, Tablet PC
