GMB51001

Global Mixed-mode Technology Inc. GMB51001 Power Distribution Switch Features „ „ „ „ „ „ „ „ „ „ „ General Description The GMB51001 is an integrated 90mΩ pow er sw itch for self-powered and bus-powered Universal Serial Bus (USB) applications. Several Protection features include current limiting w ith foldback, and thermal shutdown to prevent catastrophic switch failure caused by increasing pow er 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. 90mΩ High-Side MOSFET Available with 4 Versions of Current Limits with Foldback Operating Range:2.7V to 5.5V 400µS Typical Rise Time Under voltage Lockout 65µA Quiescent Supply Current 1µA Maximum Shutdown Supply Current Logic Level Enable Pin, Available with Active-High or Active-Low Version No Reverse Current when Power Off Deglitched Open-Drain Over-Current Flag Output ( OC ) With Output Shutdown Pull-low Resister „ SOP-8 Packages „ UL Approved_#E232223 „ Nemko IEC 60950-1 CB/CCA_scheme certification Report #67291 OC is open-drain output report over-current or over-temperature event and has typical 9ms deglitch timeout period. Applications „ „ „ „ „ „ High-Side Power Protection Switch USB Power Management USB Host and Self-Powered Bubs USB Bus-Powered Hubs Hot Plug-In Power Supplies Battery-Charger Circuits Pin Configuration GM...