G546A1PUF——致新授权代理商科瑞芯电子有限公司 原装现品   General Description The G546 are integrated dual channel 87mΩ (G546X1, G546X2) and 72mΩ (G546X3, G546X4) power switchs for self-powered and bus-powered Universal Serial Bus (USB) applications. Several Protection features include current limiting with foldback, and thermal shutdown to prevent catastrophic switch failure caused by increasing power dissipation when continuous heavy loads or short circuit occurs. And a built-in charge pump is used to drive the N-channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. OC is open-drain output report over-current or over-temperature event and has typical 9ms deglitch timeout period.     特征 87mΩRDS（on）（g546x1，g546x2）和72m RDS（on）（g546x3，g546x4） 可与5个版本的电流限制 折返 经营范围：2.7V至5.5V 400秒典型上升时间 欠压锁定 65个静态电源电流 1关机电源电流 逻辑电平使能引脚，可与 主动高或低版本 断电时无反向电流 deglitched开漏过电流的旗帜 输出（OC） SOP-8封装，采用MSOP - 8，采用MSOP-8（FD）和 tdfn3x3-8包 应用 高侧电源保护开关 USB电源管理 USB主机和自供电的枢纽 USB总线供电的集线器 热插拔电源 电池充电器电路