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Product Information
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CN3063
Lithium Ion Battery Charger for Solar-Powered Systems
Product Profile
    Reference Note
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General Description£º
The CN3063 is a complete constant-current /constant voltage linear charger for single cell Li-ion and Li Polymer
rechargeable batteries. The device contains an on-chip power MOSFET and eliminates the need for the external
sense resistor and blocking diode. An on-chip 8-bit ADC can adjust charging current automatically based on the
output capability of input power supply, so CN3063 is ideally suited for solar powered system. Furthermore,the
CN3063 is specifically designed to work within USB power specifications. 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 with 1% accuracy, it can also be adjusted with an external
resistor. The charge current can be programmed externally with a single resistor. When the input supply s removed,
i the CN3063 automatically enters a low power sleep mode , dropping the battery drain current to less than 3uA.
Other features include undervoltage lockout, automatic recharge, battery temperature sensing and
charging/termination indicator.
The CN3063 is available in a thermally enhanced 8-pin SOP package.
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Applications£º
Solar Powered System Digital Still Cameras
MP3 Players Bluetooth Applications
Portable Devices Chargers
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Features£º
On-chip 8-bit ADC can adjust charging current automatically based on the output capability of input power supply
Suitable for Solar-Powered System
On-chip Power MOSFET
No external Blocking Diode or Current Sense Resistors Required
Preset 4.2V Regulation Voltage with 1% Accuracy, adjustable with an external resistor
Precharge Conditioning for Reviving Deeply Discharged Cells and Minimizing Heat Dissipation During Initial Stage
¡¡ of Charge
Continuous Programmable Charge Current Up to 800mA
Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of
¡¡ Overheating
Automatic Low-Power Sleep Mode When Input Supply Voltage is Removed
Status Indication for LEDs or uP Interface
C/10 Charge Termination
Automatic Recharge
Battery Temperature Sensing
Available in SOP8 Package
Pb-free Available
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Application Note£º
Application Differences Between CN3163 And CN3063
Quick Start of CN31XX Demo Board
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