G556 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Dual Power Distribution Switch

Global Mixed-mode Technology Inc.
Dual Power Distribution Switch
G556
Features
„ 100mΩ 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 )
„ SOP-8 Package
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 G556 is an integrated dual channel 100mΩ power
switch for self-powered and bus-powered Universal
Serial Bus (USB) applications.
Several Protection features include current limiting
with foldback, and thermal shutdown to prevent catas-
trophic switch failure caused by increasing power dis-
sipation 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.
Ordering Information
ORDER
NUMBER
G556A1P1U
G556A2P1U
G556B1P1U
G556B2P1U
G556C1P1U
G556C2P1U
G556D1P1U
G556D2P1U
MARKING
G556A1
G556A2
G556B1
G556B2
G556C1
G556C2
G556D1
G556D2
ENABLE
Active High
Active Low
Active High
Active Low
Active High
Active Low
Active High
Active Low
Current Limit
2A
2A
1.5A
1.5A
1A
1A
0.75A
0.75A
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PACKAGE
(Green)
SOP-8
SOP-8
SOP-8
SOP-8
SOP-8
SOP-8
SOP-8
SOP-8
Pin Configuration
EN1(EN1) 1
OC1 2
OC2 3
EN2 (EN2) 4
G556
SOP-8
8 OUT1
7 IN
6 GND
5 OUT2
Typical Application Circuit
Power Supply
2.7V to 5.5V
7 _IN
8
OUT1
1µF
2
1
3
4
OC1
EN1 (EN1)
OC2
5
OUT2
EN2 (EN2)
0.1µF
0.1µF
Load
22µF
Load
22µF
Ver 1.3
Sep 29, 2010
TEL: [phone]
http://www.gmt.com.tw
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