G5244 [GMT]
High-Side Power Distribution Switch;
| 型号： | G5244 |
| 厂家： | 
GLOBAL MIXED-MODE TECHNOLOGY INC |
| 描述： | High-Side Power Distribution Switch |
| 文件： | 总1页 (文件大小：38K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
G5244
High-Side Power Distribution Switch
Features
General Description
The G5244 is an 120mΩ power switch for
self-powered and bus-powered Universal Serial Bus
(USB) applications.
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120mΩ High-Side MOSFET
2.5A of Current Limits with Foldback
Operating Range:2.7V to 5.5V
1.9ms Typical VOUT Turn-On Rise Time
Under voltage Lockout
65ꢀA Quiescent Supply Current
1ꢀA Maximum Standby Supply Current
Active-High Enable Pin
No Reverse Current when Power Off
Shutdown Discharge Function at DSG Pin
SOT-23-5 and ADFN1.5X1.5-6 Package Available
Several Protection features such as current limiting
with foldback, and thermal shutdown are included to
prevent catastrophic switch failure caused by increas-
ing power dissipation when continuous heavy loads or
short circuit occurs. A built-in charge pump is used to
drive the N-channel MOSFET that makes it free of
parasitic body diode to eliminate any reversed current
flow across the switch when it is powered off. The
G5244 has a shutdown discharge function when
power switch is turned off. User could realize the shut-
down discharge function by adding an external resistor
between OUT PIN and DSG PIN.
Applications
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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
Its low quiescent supply current and small package
SOT-23-5 and ADFN1.5X1.5-6 is particularly suitable
in battery-powered equipment, like PDA, mobile phone.
Ordering Information
ORDER
NUMBER
TEMP.
RANGE
PACKAGE
(Green)
MARKING
G5244T11U
5244x
54
-40°C to +85°C
SOT-23-5
G5244A31U
-40°C to +85°C
ADFN1.5X1.5-6
xx
Note: T1: SOT-23-5 A3: ADFN1.5X1.5-6
1: Bonding Code
U: Tape & Reel
Pin Configuration
Typical Application Circuit
G5244
G5244
G5244
IN
DSG
OUT
VIN
1
2
5
4
OUT
GND
IN
Shutdown
Discharge
Resistor
1
6
OUT
IN
NC
2
3
5
4
GND
EN
EN
VOUT
GND
ON
OFF
CIN
1ꢀF
DSG
COUT
3
4.7ꢀF
EN
DSG
ADFN1.5X1.5-6
SOT-23-5
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver 0.4
Oct 05, 2011
1
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