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GMB51001 fiches techniques PDF

Global Mixed-mode - Power Distribution Switch

Numéro de référence GMB51001
Description Power Distribution Switch
Fabricant Global Mixed-mode 
Logo Global Mixed-mode 





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GMB51001 fiche technique
Global Mixed-mode Technology Inc.
GMB51001
Power Distribution Switch
Features
„ 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 certifica-
tion Report #67291
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
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.
OC is open-drain output report over-current
or
over-temperature event and has typical 9ms deglitch
timeout period.
Pin Configuration
Ty
GND 1
GMB51001
8 OUT
IN 2
IN 3
7 OUT
6 OUT*
EN (EN) 4
5 OC
SOP-8
*Pin#6 should be considered as OUT when circuit design
and PCB layout, but it is NC pin actually.
R
UL Recognized Component
Ver: 1.0
Jul 06, 2009
pical Application Circuit
Power Supply
2.7V to 5.5V
GMB51001
1µF*
IN
OC
OUT
EN(EN)
ON
OFF
0.1µF
Load
22µF
*: 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.
TEL: 886-3-5788833
http://www.gmt.com.tw
1
http://www.Datasheet4U.com

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