一、DESCRIPTION
The BC912 is a 3A Li-Ion battery charger. It utilizes a 500 KHz 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 BC912 includes complete charge termination circuitry, automatic recharge and a ±1% 8.4V 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 BC912 is available in a ESOP8 and DNF10 package
二、FEATURES
Input voltage range 4V~22V
Dynamic input current allocation for maximum charging rate
3A Maximum Charge Current
No External MOSFETs and Blocking Diode Required
Efficiency up to 95%
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 and DFN10
RoHS Compliant and 99% Lead (Pb)-Free
三、APPLICATIONS
Portable Media Players
Cellular and Smart phone
PDA/DSC
Handheld Battery-Powered Devices
Handheld Computers
Charging Docks and Cradles
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