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Product Information
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CN3153
1A Lithium Battery Charger
Product Profile
   Reference articles
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General Description£º
The CN3153 is a complete constant-current /constant voltage linear charger for single cell lithium
rechargeable battery. The device contains an on-chip power MOSFET and eliminates the need for the external
current sense resistor and blocking diode.Its low external component count makes CN3153 ideally suited for
portable applications.Thermal feedback regulates the charge current to limit the die temperature during
high power operation or high ambient temperature.The regulation voltage is internally fixed at 4.2V,it can
also be adjusted with an external resistor. The charge current can be programmed externally with a single
resistor. When the input supply is removed, the CN3153 automatically enters a low power sleep mode,dropping
the battery drain current to less than 3uA. Other features include under-voltage lockout,automatic recharge
and charging/termination indicator.
The CN3153 is available in thermally enhanced 8-pin SOP/PP package .
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Applications£º
Mobile Phones Digital Still Cameras
MP4 Players
Electronic Dictionary
Portable Devices Variety Of Chargers
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Features£º
On-chip Power MOSFET
No external Blocking Diode or Current Sense Resistors Required
Constant Charge Voltage 4.2V, and also can be adjusted by an external resistor
Precharge Conditioning for Reviving Deeply Discharged Cells and Minimizing Heat Dissipation During Initial
¡¡ Stage of Charge
Trickle Charge Current can be Selected
Can be used as a Voltage Source
Battery Short Circuit Protection
Programmable Continuous Charge Current Up to 1A
Constant-Current/Constant-Voltage/Constant-Temperature Operation to Maximize Charge Rate Without Risk
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Automatic Low-Power Sleep Mode When Input Supply is Removed
Status Indication for LEDs or uP Interface
C/10 Charge Termination
Automatic Recharge
Pb-free, rohs compliant, halogen free(SOP8/PP)
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Application Note£º
Quick Start of CN31XX Demo Board
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