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G558/9

更新时间： 2024-11-15 17:01:15
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A/B/C/D ILimit = 0.27A/0.17A/0.25A/0.15A

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中文翻译

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G558/9 数据手册

  
G558/G559  
Global Mixed-mode Technology  
Current-Limit Switches  
Features  
General Description  
„
200mΩ On-Resistance  
The G558/G559 family of switches feature internal  
current limiting to prevent host devices from being  
damaged due to faulty load conditions. These analog  
switches have a low 0.2Ω on-resistance and operate  
from a 2.3V to 5.5V input voltage range. They are  
available with guaranteed 200mA and 100mA current  
limits, making them ideal for load-switching applica-  
tions.  
„
Current Limit : 275mA (G558A/G559A), 175mA  
(G558B/G559B), 250mA(G558C/G559C), 150mA  
(G558D/G559D)  
„
„
„
„
„
„
2.3V to 5.5V Supply Range  
Undervoltage Lockout  
85μA Supply Current  
30μA Latch-OFF Current  
1μA Maximum Shutdown Current  
Latch-off Function(G558X) and Auto-Restart  
Function(G559X)  
When the switch is on and a load is connected to the  
port, a typical blanking time of 40ms ensures that the  
transient voltages settle down. If after this blanking  
time the load current is greater than the current limit,  
the G558 enter a latch-off state where the switch is  
„
„
„
„
„
Active High Enable  
Thermal-Shutdown Protection  
Reverse-Current Limit Protection  
40ms Blanking Time  
turned off and FLAG is issued to the microprocessor.  
The switch can be turned on again by cycling the  
power or the ON pin. The ON pin of G558 is active  
high.  
280ms Auto-Restart Time(G559X)  
„
„
„
FLAG Function  
Fast Current-Limit Response Time  
TSOT-23-5 Package  
The G559 have an auto-restart feature where the  
switch turns off after the blanking time and then con-  
tinuously checks to see if the overload condition is  
present. The switch remains on after the overload con-  
dition disappears.  
Applications  
„
„
„
„
PDAs  
Cell Phones  
GPS Systems  
Hand-Held Devices  
The G558/G559 is available in TSOT-23-5 package.  
Ordering Information  
ORDER  
FUNCTION  
OPTIONS  
TEMP.  
RANGE  
PACKAGE  
(Green)  
CURRENT LIMIT  
MARKING  
NUMBER  
G558ATO1U  
G558BTO1U  
G559ATO1U  
G559BTO1U  
G558CTO1D  
G558DTO1D  
G559CTO1D  
G559DTO1D  
Latch-off  
Latch-off  
275mA  
175mA  
275mA  
175mA  
250mA  
150mA  
250mA  
150mA  
558Ax  
558Bx  
559Ax  
559Bx  
558Cx  
558Dx  
559Cx  
559Dx  
-40°C~+105°C  
-40°C~+105°C  
-40°C~+105°C  
-40°C~+105°C  
-40°C~+105°C  
-40°C~+105°C  
-40°C~+105°C  
-40°C~+105°C  
TSOT-23-5  
TSOT-23-5  
TSOT-23-5  
TSOT-23-5  
TSOT-23-5  
TSOT-23-5  
TSOT-23-5  
TSOT-23-5  
Auto-Restart  
Auto-Restart  
Latch-off  
Latch-off  
Auto-Restart  
Auto-Restart  
Note: TO: TSOT-23-5  
1: Bonding Code  
D: Tape & Reel  
Pin Configuration  
Typical Application Circuit  
G558/G559  
G558/G559  
1
VIN  
5
4
VOUT  
FLAG  
OUT  
ON  
VOUT  
VIN  
VIN  
2
3
GND  
ON  
FLAG  
FLAG  
ON  
OFF  
GND  
TSOT-23-5  
TEL: 886-3-5788833  
http://www.gmt.com.tw  
Ver: 0.5  
Sep 19, 2012  
1
1

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