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G525-1P81U PDF预览

G525-1P81U

更新时间： 2024-11-10 01:09:07
品牌 Logo 应用领域
致新 - GMT /
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1页 147K
描述
USB High-Side Power Switch Advance Information

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G525-1P81U 数据手册

  
Global Mixed-mode Technology Inc.  
G525  
USB High-Side Power Switch Advance Information  
Features  
General Description  
The G525 is an integrated high-side power switch op-  
timized for self-powered and bus-powered Universal  
Serial Bus (USB) applications.  
„
„
Compliant to USB standard  
Typical 130mΩ, Low MOSFET on resistance, at  
5.0V  
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„
„
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500mA minimum continuous load current  
3.0V to 5.5V operating range  
100µA typical on-state supply current  
25µA typical standby supply current  
Output can be forced higher than input when  
operating in off state.  
The G525 satisfies the USB standards. The switch's  
low on-resistance meets USB voltage drop require-  
ments. When the output load exceeds current-limit  
threshold, G525 switches into constant mode and limit  
the output current to a safe level, which is typically  
900mA, well below the UL 25VA safety requirement. An  
open-drain flag output is also available to indicate fault  
conditions to the local USB controller. Soft start elimi-  
nates the momentary voltage drop on the upstream  
port that may occur when the switch is enabled in  
bus-powered applications.  
„
„
„
„
„
„
1.2A maximum current limit  
Thermal shutdown protection  
2.4V typical undervoltage lockout (UVLO)  
Open-drain fault flag pin  
Slow turn-on (soft-start) and fast turnoff  
Logic level enable pin, available with active-  
high or active-low version  
Besides, a thermal shutdown circuit is included to pre-  
vent catastrophic switch failure caused by increasing  
power dissipation when continuous heavy loads or  
short circuit occurs. A undervoltage lockout (UVLO)  
circuit ensures that the device remains off unless there  
is a valid input voltage present, and an enable input  
that is compatible with both 3.3V and 5V logic.  
Applications  
„
„
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High-side power protection switch  
USB power management  
USB host and self-powered hubs  
USB Bus-powered hubs  
Hot plug-in power supplies  
Battery-charger circuits  
Ordering Information  
ORDER  
NUMBER  
G525-1  
PACKAGE  
(Pb free)  
SOP-8  
MARKING  
ENABLE  
TEMP. RANGE  
G525-1  
G525-2  
G525-1  
G525-2  
Active High  
Active Low  
Active High  
Active Low  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
G525-2  
SOP-8  
G525-1P81U  
G525-2P81U  
MSOP-8  
MSOP-8  
Note: P1: SOP-8  
1: Bonding Code  
U: Tape & Reel  
P8: MSOP-8  
Pin Configuration  
Function Block  
G525  
G525  
EN  
FLG  
GND  
NC  
1
2
3
4
8
7
6
5
OUT  
6,8 (OUT)  
7 (IN)  
IN  
(EN) 1  
Gate  
Control  
(FLG) 2  
OUT  
NC  
3 (GND)  
SOP-8/MSOP-8  
TEL: 886-3-5788833  
http://www.gmt.com.tw  
Ver 2.2  
Mar 19, 2008  
1
1

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