TX4056 1.1A锂离子电池线性充电器 SOP8 ESOP8 深圳恒锐丰科技.pdf

TX4056

1.1ALithiumIonBatteryLinearCharger

Features

Programmablechargecurrentupto1.1ATwoStatusIndicationforChargestatus,nobattery

NoMOSFETsenseresistororblockingdiodeandbatteryfailureindicators

requiredC/10chargetermination

CompletelinearChargerforsingleCellLithium-Ion55μAsupplycurrentinshutdown

Batteries2.9Vtricklecurrentchargethreshold

CCandCVoperationwiththermalregulationtoSoft-Startlimitsinrushcurrent

maximizeRatewithoutriskofoverheatingBatteryTemperatureSensing

Preset4.2Vchargevoltagewith±1%accuracyAvailableinSOP-8andESOP-8package

AutomaticRecharge

Applications

CellularTelephonesBluetoothApplications

MobilePowerSupplyPortableDevices

DigitalStillCamerasUSBBus-PoweredChargers

MP3Players

GENERALDESCRIPTION

TX4056isacompleteCC/CVlinearchargerforsinglecellchargecurrentdropsto1/10ththeprogrammedvalueafter

lithium-ionbatteries.itisspecificallydesignedtoworkthefinalfloatvoltageisreached.

withinUSBpowerSpecifications.Whentheinputsupply(walladapterorUSBsupply)is

NoexternalsenseresistorisneededandnoblockingremovedtheTX4056automaticallyentersalowcurrent

diodeisrequiredduetotheinternalP-MOSFETstatedroppingthebatterydraincurrenttolessthan

architecture.Thermalfee