ETA6911
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...
