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Product Introduction

Product parameters

Funtion:4A, Standalone 3-Cell Li-ion Battery Charger

Opration Mode:Switch

Battery:3 cell li-ion battery

Battery No.:3

Vout Range:0V-12.6V

Vin Range:6.6V-30V

Max Charge Current:4A

Operating Current:1mA

Solar Panel charge:No

Chip Temperature Regulation:No

Package:SSOP10

Switching Frequency:300kHz

Chip Enable:No

On-chip Power MOSFET:No


General Descriptions:

The CN3763 is a PWM switch-mode lithium ion battery charger controller for 3 cell li-ion battery in a small package using few external components.

The CN3763 is specially designed for charging lithium ion batteries with constant current and constant voltage mode. In constant voltage mode, the regulation voltage can be fixed at 12.6V with ±1% accuracy, also can be adjusted upwards with an external resistor. The constant charging current is programmable with a single current sense resistor.

Deeply discharged batteries are automatically trickle charged at 17.5% of the programmed constant charging current until the cell voltage exceeds 66.5% of constant voltage. The charge cycle is terminated once the charging current drops to 16% of full-scale current, and a new charge cycle automatically restarts if the battery voltage falls below 95.5% of regulation voltage. CN3763 will automatically enter sleep mode when input voltage is lower than battery voltage.

Other features include under voltage lockout, battery over voltage protection, status indication, etc.

CN3763 is available in a space-saving 10-pin SSOP package.

Applications:

l  Hand-held Equipment

l  Battery-Backup Systems

l  Portable Industrial and Medical Equipment

l  Standalone Battery Chargers

Features:

l  Wide Input Voltage: 6.6V to 30V

l  Complete Charge Controller for single cell Lithium-ion Battery

l  Charge Current Up to 4A

l  High PWM Switching Frequency: 300KHz

l  Regulation Voltage can be adjusted upward

l  Constant Voltage Accuracy: ±1%

l  Charging Current is programmed with a current sense resistor

l  Automatic Conditioning of Deeply Discharged Batteries

l  Automatic Recharge

l  Charging Status Indication

l  Soft Start

l  Battery Overvoltage Protection

l  Operating Ambient Temperature
40 to 85

l  Available in 10-Pin SSOP Package

l  Pb-free, Rohs-Compliant, Halogen Free


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