XT4051

單片具有熱調(diào)節(jié)功能的微型線性電池管理芯片; ·可編程使充電電流為;

XT4051是一個(gè)完善的單片鋰離子電池恒流/恒壓線形電源管理芯片。它薄的尺寸和小的外包裝使它便于便攜應(yīng)用。更值得一提的是，XT4051專(zhuān)門(mén)設(shè)計(jì)適用于USB的供電規(guī)格。得益于內(nèi)部的MOSFET結(jié)構(gòu)，在應(yīng)用上不需要外部電阻和阻塞二極管。\r\n\r\n 充電電壓被限定在4.2V，充電電流通過(guò)外部電阻調(diào)節(jié)。在達(dá)到目標(biāo)充電電壓后，當(dāng)充電電流降低到設(shè)定值的3/10時(shí)，XT4051就會(huì)自動(dòng)結(jié)束充電過(guò)程。當(dāng)輸入端（插頭或USB提供電源）拔掉后，XT4051自動(dòng)進(jìn)入低電流狀態(tài)，電池漏電流將降到1μA以下。XT4051還可被設(shè)置于停止工作狀態(tài)，使電源供電電流降到25μA。\r\n\r\n XT4051采用獨(dú)特的內(nèi)部專(zhuān)利結(jié)構(gòu)確保了電池接反時(shí)芯片自動(dòng)進(jìn)入保護(hù)狀態(tài)，確保IC不被擊穿導(dǎo)致電池自放電引起事故。同時(shí)確保XT4051的ESD能力達(dá)到6KV(HBM)。\r\n\r\n 其余特性包括：充電電流監(jiān)測(cè)，輸入低電壓閉鎖，自動(dòng)重新充電和充電已滿(mǎn)及開(kāi)始充電的標(biāo)志。

4051

8-CHANNELANALOGMULTIPLEXERS/DEMULTIPLEXERS

■DESCRIPTION UTC4051issingle8-channelanalogmultiplexers/demultiplexersforapplicationasdigitally–controlledanalogswitches. Thedevicehasthreebinarycontrolinputsandaninhibitinput.ItfeaturelowONimpedanceandverylowOFFleakagecurrent.Controlofanalogsignalsuptoth

4051

8-CHANNELANALOGMULTIPLEXERS/DEMULTIPLEXERS

4051

8-CHANNELANALOGMULTIPLEXERS/DEMULTIPLEXERS

4051

8-CHANNELANALOGMULTIPLEXERS/DEMULTIPLEXERS

4051

4051WireInsertion/CutOffTool

4051B

8-channelanaloguemultiplexer/demultiplexer

DESCRIPTION TheHEF4051Bisan8-channelanaloguemultiplexer/demultiplexerwiththreeaddressinputs(A0toA2),anactiveLOWenableinput(E),eightindependentinputs/outputs(Y0toY7)andacommoninput/output(Z).

PHI

4051J

PremierSupplierofElectronicHardware

4051N

PremierSupplierofElectronicHardware

A4051

BATTERYMANAGEMENT1ALINEARLI-IONBATTERYCHARGER

DESCRIPTION The A4051isacompleteconstantcurrent&constant voltagelinearchargerforsinglecelllithiumion batteries.ItsPSOP8packageandlowexternal componentcountmaketheA4051ideallysuitedfor portableapplications.Furthermore,theA4051is specificallydesignedtowo