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Global Mixed-mode - Power Distribution Switch

Numéro de référence G547G
Description Power Distribution Switch
Fabricant Global Mixed-mode 
Logo Global Mixed-mode 





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G547G fiche technique
Global Mixed-mode Technology
G547E/F/G/H/M
Power Distribution Switch
Features
90mHigh-Side MOSFET
(G547E,G547F,G547G,G547H, G547M)
Available with 5 Versions of Current Limits with
Foldback
Operating Range:2.7V to 5.5V
1mS Typical Rise Time
Fast Overcurrent Response -3µs (TYPICAL)
Under voltage Lockout
100µA 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
SOT-23-6, SOP-8, MSOP-8 and TDFN3X3-8 Pack-
ages
UL Approved_#E232223
Nemko IEC 60950-1 CB/CCA_scheme Certifica-
tion Report #67291
General Description
The G547 is an integrated power switch for
self-powered and bus-powered Universal Serial Bus
(USB) applications. G547E, G547F, G547G,G547H
and G547M are 90mRDS(ON).
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. A
built-in charge pump is used to drive the N-channel
MOSFET that is free of parasitic body diode to elimi-
nate 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.
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
Typical Application Circuit
GND 1
IN 2
IN 3
EN (EN) 4
G547
8
OUT
EN (EN) 1
7 OUT
GND 2
6 OUT*
5 OC
IN 3
SOP-8/MSOP-8
G547
G547
6 OC
5 OUT
4 OUT
SOT-23-6
Power Supply
2.7V to 5.5V
G547
IN
1µF*
OC
OUT
0.1µF
Load
22µF
GND 1
IN 2
IN 3
EN (EN) 4
Thermal
Pad
8 OUT
7 OUT
6 OUT*
5 OC
TDFN3X3-8
Note: Recommend connecting the Thermal Pad
to the GND for excellent power dissipation.
*Pin#6 should be considered as OUT when circuit design and PCB layout, but it is NC pin actually.
ON
OFF
EN(EN)
*: 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:1.5
Sep 08, 2011
1
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