Product parameters

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Funtion：Multi-Chemistry Battery Charger for Solar-Powered Systems

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Opration Mode：Linear

Battery：lithium batteries, nickel metal hydride batteries, lithium iron phosphate and lead-acid battery

Battery No.：1

Vout Range：0V-5.5V

Vin Range：4.45V - 6V

Max Charge Current：600mA

Operating Current：650uA

Solar Panel charge：Yes

Chip Temperature Regulation：Yes

Package：eSOP8

Chip Enable：No

On-chip Power MOSFET：Yes

General Description:

CN3082 is a mutli-chemistry battery charge IC for multi-chemistry batteries. The device contains an on-chip power MOSFET and eliminates the need for the external sense resistor and blocking diode. CN3082 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 device integrates a high-precision voltage comparator with 1% accuracy for charge termination voltage. An on-chip 8-bit ADC can adjust charging current automatically based on the output capability of input power supply, so CN3082 is ideally suited for solar powered system.

The charge current can be set externally with a single resistor. When the input supply is removed, the CN3082 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 CN3082 is available in 8-pin SOP8 package. (SOP8)。

Applications:

l  Cell Phone

l  Digital Camera

l  Electronic Dictionary

l  Portable Devices

l  The need for lithium batteries, nickel metal hydride batteries, lithium iron phosphate and lead-acid battery charging

 

Features:

l  Suitable for the USB port or AC adapter

l  On-chip Power MOSFET

l  Charge Termination voltage accuracy of 1%

l  On-chip 8-bit ADC can adjust charging current automatically based on the output capability of input power supply

l  Suitable for Solar-Powered System

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

l  Continuous Programmable Charge Current Up to 600mA

l  Constant-Current/Constant-Temperature 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 LED drive or MCU interface

l  Automatic Recharge

l  Battery Temperature Sensing

l  Available in SOP-8 Package

l  Pb-free Available