真关断电路

摘要：降压型高达的的DC/DC的转换器有一个从输入到输出的的直接的路径（通过的电感器和肖特基二极管的的），使得一个完整的关机变得困难的。此电路达到通过调停的一个和输入和输出，之间的由一个RS-232收发器（MAX3384）控制的的的外部MOSFET的为MAX17112转换器的的完整的关机。

Maxim>Designsupport>Appnotes>CircuitProtection>APP4835Maxim>Designsupport>Appnotes>InterfaceCircuits>APP4835Maxim>Designsupport>Appnotes>Power-SupplyCircuits>APP4835Keywords:battery-powered,stepupdc/dcconverters,shutdown,RS-232transceiversFeb07,2011APPLICATIONNOTE4835True-ShutdownCircuitAbstract:Step-upDC/DCconvertershaveadirectpathfrominputtooutput(viatheinductorandSchottkydiode)thatmakesafullshutdowndifficult.ThiscircuitachievesfullshutdownforaMAX17112converterbyinterposinganexternalMOSFETbetweeninputandoutput,controlledbyanRS-232transceiver(MAX3384).Asimilarversiono