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- Voltage detector IC  
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- Coin Battery Charger IC
- LA Battery Charger IC
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Coin Battery Charger IC for Solar-Powered Systems
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General Description:
The CN3130 is a complete constant-current /constant voltage linear charger for coin batteries. The device contains an on-chip power MOSFET and eliminates the need for the external sense resistor and blocking diode. An on-chip adaptive block can adjust charging current automatically based on the output capability of input power supply, so CN3130 is ideally suited for solar powered system. 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 3.3V with 1% accuracy, it can also be adjusted upwards with an external resistor. The charge current can be set externally with a single resistor. When the input supply is removed, the CN3130 automatically enters a low power sleep mode , dropping the battery drain current to less than 3uA. Other features include undervoltage lockout, automatic recharge and charging indicator.
The CN3130 is available in 6 pin SOT23 package.
Wearable Equipment Smart Home
Medical Equipment, Calculator Electric Meter, Water Meter and Gas Meter
Measurement Equipment and Sensor  
Automatic charge current adjustment 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 3.3V regulation voltage with 1% accuracy, upwards adjustable with a 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
Constant Charge Current from 10mA to 300mA
Suitable for Charging Manganese Lithium , LiFePO4 and Lithium Coin Battery
Constant-Current/Constant-Voltage/Constant-Temperature Operation to Maximize Charge Rate Without Risk
  of Overheating
Automatic Low-Power Sleep Mode When Input Supply is Removed
Status Indication for LEDs or uP Interface
C/10 Charge Termination
Automatic Recharge
Available in SOT23-6 Package,Pb-free, rohs-Compliant and Halogen Free
Application Note:
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