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BC912..pdf
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BC912..pdf
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BC912
BC912-Ver1.5 www.semihigh.com.cn
3A Synchronous Buck Li-ion Charger
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1
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1
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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 93%
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 100% Lead (Pb)-Free
APPLICATIONS
Portable Media Players
Cellular and Smart mobile phone
PDA/DSC
Handheld Battery-Powered Devices
Handheld Computers
Charging Docks and Cradles
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% 4.2V 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 DFN10 package
PACKAGE
ESOP8 AND DFN10
ORDING INFORMATION
Part Number
Package Type
Package Qty
Op Temp(°C)
BC912
ESOP8
4000
-40~85
BC912
DFN10
5000
-40~85
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