G5461 [GMT]
Power Distribution Switch;
| 型号： | G5461 |
| 厂家： | 
GLOBAL MIXED-MODE TECHNOLOGY INC |
| 描述： | Power Distribution Switch |
| 文件： | 总1页 (文件大小：42K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Global Mixed-mode Technology Inc.
G5461
Power Distribution Switch
Features
General Description
The G5461 is an integrated 53mΩ power switch for
self-powered and bus-powered Universal Serial Bus
(USB) applications.
53mΩ 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
90µA 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
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.
Output (OC )
SOP-8 , MSOP-8 and TDFN3X3-8 Packages
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
G5461
8
7
6
5
1
NC
GND
OUT
2
3
4
IN
IN
OUT
OC
G5461
Power Supply
2.7V to 5.5V
IN
OUT
Load
EN (EN)
*
1µF
22µF
0.1µF
SOP-8/MSOP-8
G5461
OC
EN(EN)
ON
OFF
*: 1µF of input capacitor is enough in most application cases.
8
NC
GND
1
IN
2
3
4
OUT
OUT
OC
7
6
5
Thermal
Pad
If the PCB trace of power rail to IN is long, larger input capacitor is necessary.
IN
EN (EN)
TDFN3X3-8
Note: Recommend connecting the Thermal Pad to
the Ground for excellent power dissipation.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver 0.3
Apr 12, 2011
1
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