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GMB51001

Global Mixed-mode
Part Number GMB51001
Manufacturer Global Mixed-mode
Description Power Distribution Switch
Published May 9, 2014
Detailed Description Global Mixed-mode Technology Inc. GMB51001 Power Distribution Switch Features „ „ „ „ „ „ „ „ „ „ „ General Descripti...
Datasheet PDF File GMB51001 PDF File

GMB51001
GMB51001

Overview
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 GMB51001 GND IN IN EN (EN) 1 2 3 4 8 7 6 5 OUT OUT OUT* OC Ty pical Application Circuit GMB51001 Power Supply 2.
7V to 5.
5V IN OUT 0.
1µF OC ON OFF EN(EN) 22µF Load * 1µF SOP-8 *Pin#6 should be considered as OUT when circuit design and PCB layout, but it is NC pin actually.
*: 1µF of input capacitor is enough in most application cases.
If the PCB trace of power rail to IN is long, larger input capacitor is necessary.
R UL Recognized Component Ver: 1.
0 Jul 06, 2009 TEL: 886-3-5788833 http:/...


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