G5258 Global Mixed-mode Technology Inc. Dual Power Distribution Switch Features General Description The G5258 is an integrated dual channel 87mΩ power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. 87mΩ 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 to VIN when Power Off VOUT OFF Discharge Deglitched Open-Drain Over-Current Flag 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. Output ( OC ) SOP-8 Package and TDFN3X3-8 Package UL Approved_#E232223 Nemko IEC 60950-1 CB/CCA_scheme certification Report #67291 CSA Approved #230321 Applications Pin Configuration 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 Typical Application Circuit G5258 GND 1 8 OC1 IN 2 7 OUT1 EN1(EN1) 3 6 OUT2 EN2 (EN2) 4 5 OC2 Power Supply 2.7V to 5.5V SOP-8 IN OUT1 1µF G5258 Load 0.1µF 22µF OC1 EN1 (EN1) GND 8 1 IN 2 EN1(EN1) 3 EN2 (EN2) 4 Thermal Pad OC1 7 OUT1 6 OUT2 5 OC2 OC2 EN2 (EN2) OUT2 Load 0.1µF 22µF TDFN3X3-8 Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation. R UL Recognized Component TEL: 886-3-5788833 http://www.gmt.com.tw Ver 1.6 Apr 12, 2011 1