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ETA9740

来 源:  时 间:2016-09-11

DESCRIPTION FEATURES

ETA9740 is a switching Li-Ion battery charger capable of

delivering up to 3A 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

bi-directionally with a proprietary automatic mode detect and

switch scheme. ETA9740 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.

ETA9740 is suitable for charging a 4.2V Li-ion battery. And

ETA9740 is in ESOP8 package.

 Bi-Directional Power conversion with Single

Inductor

 Automatic Mode Switching

 Switching Charger

 5V Synchronous Boost

 Up to 96% Efficiency

 Up to 3A Max charging current and 2.4A

discharging

 No-Battery detection

 No External Sense resistor

 4 LEDs Fuel gauge

APPLICATIONS

 Tablet, MID

 Smart Phone

 Power Bank


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