ChipSourceTek TX4054B
TX4054 is a complete CC/CV linear charger for u single cell lithium-ion batteries. it is specifically designed to work within USB power 矽 o Specifications. When the input supply (wall adapter or USB supply) is removed the TX4054 automatically enters a low current state dropping the battery drain current to less than 2μA.The TX4054 can be put into shut down mode reducing the supply current to 55μA.| Part No. | TX4054B |
|---|---|
| Datasheet | TX4054B Download |
| Manufacturer |  ChipSourceTek |
| Description | CC/CV linear charger |
| Buy | Stock & Price |
FEATURES
l Protection of battery cell reverse connection l Preset 4.2V charge voltage with ±1% l Programmable charge current up to 800mA accuracy l No MOSFET sense resistor or blocking diode l Automatic Recharge required l C/10 charge termination l Complete linear Charger for single Cell l 2.9V trickle current charge threshold Lithium-Ion Batteries l Soft-Start limits inrush current l CC and CV operation with thermal regulation l Available in SOT23-5 package to maximize Rate without risk of overheating 技 kAPPLICATIONS
l Cellular Telephones 科 e l Mobile Power Supply l Digital Still Cameras T l MP3 Players l BluetoothAPPLICATIONS
l Portable Devices l USB Bus-Powered Chargers 源特 rceGENERAL DESCRIPTION
No external sense resistor is needed and no S blocking diode is required due to the internal ip P-MOSFET architecture.Thermal feedback regulates the charge current to limit the die temperature during high power operation or high h ambient temperature .The charge voltage is fixed C at 4.2V,and the charge current can be when the charge current drops to 1/10th the programmed value after the final float voltage is reached.
