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CN3722 - Multi-Chemistry Battery Charger IC

General Description

The CN 3722(Note 1) is a PWM switc h-mode battery charger controller that ca n be powere d by ph otovoltaic cell w ith maximum p ower point tra cking fu nction.

Key Features

  • include undervoltage lockout, battery temperature monitoring and status indication, etc. CN3722 is available in a space-saving 16-pin TSSOP package. Features:.
  • Photovoltaic Cell Ma ximum Power Point Tracking Wide Input Voltage: 7.5V to 28V Complete Ch arger C ontroller for 1 or multi-cell Lithium-ion Battery or LiFePO4 Battery Charge Current Up to 5A High PWM Switching Fr equency: 300KHz Constant Charging V oltage Se t By the External Resistor Divider Charging Current is progra.

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Datasheet Details

Part number CN3722
Manufacturer CONSONANCE
File Size 354.03 KB
Description Multi-Chemistry Battery Charger IC
Datasheet download datasheet CN3722 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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CONSONANCE 5A, Multi-Chemistry Battery Charger IC With Photovoltaic Cell MPPT Function CN3722 General Descriptions: The CN 3722(Note 1) is a PWM switc h-mode battery charger controller that ca n be powere d by ph otovoltaic cell w ith maximum p ower point tra cking fu nction. The CN 3722 is specially designed for charging 1 or m ulti-cell lithium ion batteries or LiFePO4 batteries with constant current and constant voltage mode. In constant v oltage mode, th e regulation v oltage is set by the ex ternal res istor d ivider. The constant c harging c urrent is pro grammable with a single current sense resistor. Deeply discharged batteries are automatically trickle charged at 15% of the programmed constant charging current until the cell voltage exceeds 66.7% of the regulation voltage.