Product parameters

Funtion：1A Lithium Battery Charger IC

Opration Mode：Linear

Battery：single cell Li-ion and Li Polymer battery

Battery No.：1

Vout Range：0V-4.2V

Vin Range：3.8V - 6V

Max Charge Current：1A

Operating Current：450uA

Solar Panel charge：No

Chip Temperature Regulation：Yes

Package：eSOP8

Chip Enable：Yes

On-chip Power MOSFET：Yes

General Description:

The CN3152 is a complete constant-current /constant voltage linear charger for single cell Li-ion and Li Polymer rechargeable batteries. The device contains an on-chip power MOSFET and eliminates the need for the external sense resistor and blocking diode. Its low external component count makes CN3152 ideally suited for portable applications.

Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The regulation voltage is fixed at 4.2V with 1% accuracy. The charge current can be set externally with a single resistor. When the input supply is removed, the CN3152 automatically enters a low power sleep mode , dropping the battery drain current to less than 3uA. Other features include undervoltage lockout, automatic recharge, chip enable function, battery temperature monitoring and charge status indications.

The CN3152 is available in a thermally enhanced eSOP8 package.

 

Applications:

l  Cellular Telephones

l  Digital Still Cameras

l  Power Bank

l  Portable Devices

l  Standalone Chargers

Features:

l  Complete Charge Management for Single Cell Lithium Battery

l  On-chip Power MOSFET

l  No external Blocking Diode or Current Sense Resistors Required

l  Preset 4.2V Regulation Voltage with 1% Accuracy

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

l  Charge Current Up to 1A

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 Indications for LEDs or uP Interface

l  C/10 Charge Termination

l  Automatic Recharge

l  Battery Temperature Monitoring

l  Chip Enable Input

l  Available in thermally enhanced eSOP8 Package

l  Pb-free, rohs-compliant and Halogen-free