ETA6911 Datasheet | ETA

12V/4A Standalone Switching Li+ Battery Charger DESCRIPTION Features The ETA6911 is a new generation of highly integrated synchronous switch-mode charger, featuring integrated synchronous FETs, high switching frequency and high charging efficiency. With ETA’s proprietary current sense technology, by eliminating external sense resistor, it is capable of delivering charge current up to 4A. Furthermore, it has a very small footprint of 1.7mmx2mm and only requires small external ponents; therefore, it is ideal for extremely space-limited portable applications powered by 1-cell Li-ion or Li-polymer batteries. ETA6911 also has a feature that in high impedance mode, the IC stops charging and consumes very low current from VBUS, thereby effectively reducing the standby power consumption of upstream power source. The ETA6911’s charge current and termination current can also be programmed by two separated external resistors. A NTC function is also provided to allow flexible thermal charging profiles. A STAT pin provides charging status indications. ETA6911 is available in a small QFNFC1.7x2-20 and QFN4x4-24 package. - Up to 4A Max Charging Current Switching Charger - 93% Charging Efficiency at 5V Input 2A CC Current - 12V Input Operating Voltage - 20V Input Standoff Voltage - 12V Battery Output Standoff Voltage - No External Sense Resistor - Integrate Linear Charger for Accurate Iterm Control - Input DPPM - Input Current Limiting - Bad Adaptor Detection - No-Battery Detection - Status Output for Charging and Faults - Input OVP - Reverse Leakage Protection for Battery - Ro HS pliant APPLICATIONS - Smart Phone - Tablet, MID - E-cigarette TYPICAL APPLICATION VBUS VBUS BOOT 4.7u F 10K 4.7u F CD...