ETA9741

ETA9741 2A Switching Charger, 2.4A Boost and Fuel Gauge with Single Inductor DESCRIPTION ETA9741 is a switching Li-Ion battery charger capable of delivering 2A of charging current to the battery and also capable of delivering up to 5V/2.4A in boost operation, with high efficiency in both charging mode and boost mode. It also includes a fuel gauge system for power indication. For charging, it uses a proprietary control scheme that eliminates the current sense resistor for conventional constant current control, maximizing efficiency, reducing charging time and reducing costs. It can also output a 5V voltage in the reversed direction by boosting from the battery. It only needs a single inductor to provide power bidirectionally with a proprietary automatic mode detect and switch scheme. ETA9741 is an ideal all-in-one solution for battery charging and discharge applications, such as power banks, smart phones, and tablets with only one USB port that can be used for charging battery function. ETA9741 is suitable for charging a 4.2V Li-ion battery. And ETA9741 is in ESOP8 package. FEATURES  Bi-Directional Power conversion with Single Inductor  Automatic Mode Switching  Switching Charger  5V Synchronous Boost  Up to 96% Efficiency  2A charging current and 2.4A discharging  No-Battery detection  No External Sense resistor  4 LEDs Fuel gauge  Button Controlled APPLICATIONS  Tablet, MID  Smart Phone  Power Bank TYPICAL APPLICATION ORDERING INFORMATION PART No. ETA9741E...