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Product Introduction

Product parameters

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Funtion:Coin Battery Charger IC for Solar-Powered Systems

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Opration Mode:Linear

Battery:coin batteries

Battery No.:1

Vout Range:0V-3.3V

Vin Range:3.9V - 6V

Max Charge Current:300mA

Operating Current:500uA

Solar Panel charge:Yes

Chip Temperature Regulation:Yes

Package:SOT23-6

Chip Enable:No

On-chip Power MOSFET:Yes


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.

 

 

Applications:

l  Wearable Equipment

l  Smart Home

l  Medical Equipment, Calculator

l  Electric Meter, Water Meter and Gas Meter

l  Measurement Equipment and Sensor

 

Features:

l  Automatic charge current adjustment based on the output capability of input power supply

l  Suitable for Solar-Powered System

l  On-chip Power MOSFET

l  Suitable for Charging Manganese Lithium  , LiFePO4 and Lithium Coin Battery

l  No external Blocking Diode or Current Sense Resistors Required

l  Preset 3.3V regulation voltage with 1% accuracy, upwards adjustable with a resistor

l  Precharge Conditioning for Reviving Deeply Discharged Cells and Minimizing Heat Dissipation During Initial Stage of Charge

l  Constant Charge Current from 10mA to 300mA

l  Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating

l  Automatic Low-Power Sleep Mode When Input Supply Voltage is Removed

l  Status Indication for LEDs or uP Interface

l  C/10 Charge Termination

l  Automatic Recharge

l  Available in SOT23-6 Package

l  Pb-free, rohs-Compliant and Halogen Free


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