锂电池充电器
芯晶图电子专业芯片代理公司，提供更优质的产品及技术支持
ETA(钰泰半导体)
锂电池充电器
ETA6911
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 components; 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.
FEATURES
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
RoHS Compliant
APPLICATIONS
Smart Phone
Tablet, MID
E-cigarette
需要样品测试或详细资料请联系：18126521362（点击复制微信号）
