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3A switch type Synchronous Step-Down multi lithium battery charge management chip sl6688
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3A Synchronous Buck Li-ion Charger

General Description
The 6688 is a 2A Li-Ion battery charger. It utilizes a 500KHz synchronous buck converter topology to reduce power dissipation during charging. Low power dissipation, an internal MOSFET allow a physically small charger that can be embedded in a wide range
of handheld applications. The 6688 includes complete charge termination circuitry, automatic recharge and a ±1% 4.2V / 8.4V / 12.6V float voltage.
Battery charge current, charge timeout and end-of charge indication parameters are set with external components. Additional features include shorted cell detection; temperature qualified charging and overvoltage protection. The 6688 is available in a

low profile ESOP8 and package.

Features

Input voltage range 4V~20V

Dynamic input current allocation for maximum

charging rate
3.0A Maximum Charge Current

No External MOSFETs and Blocking Diode

Required
Efficiency up to 90%
Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating Optional Battery Temperature Monitoring Before and During Charge Automatic Sleep Mode for Low-Power Over Current Protection
Consumption Available in ESOP8 RoHS Compliant and 100% Lead (Pb)-Free
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