G558 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Current-Limit Switches

Global Mixed-mode Technology
G558/G559
Current-Limit Switches
Features
„ 200mΩ On-Resistance
„ 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)
„ Active High Enable
„ Thermal-Shutdown Protection
„ Reverse-Current Limit Protection
„ 40ms Blanking Time
„ 280ms Auto-Restart Time(G559X)
„ FLAG Function
„ Fast Current-Limit Response Time
„ TSOT-23-5 Package
Applications
„ PDAs
„ Cell Phones
„ GPS Systems
„ Hand-Held Devices
General Description
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.
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
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.
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.
The G558/G559 is available in TSOT-23-5 package.
Ordering Information
ORDER
NUMBER
G558ATO1U
G558BTO1U
G559ATO1U
G559BTO1U
G558CTO1D
G558DTO1D
G559CTO1D
G559DTO1D
Note: TO: TSOT-23-5
1: Bonding Code
D: Tape & Reel
MARKING
558Ax
558Bx
559Ax
559Bx
558Cx
558Dx
559Cx
559Dx
Pin Configuration
G558/G559
VIN 1
5 VOUT
FUNCTION
OPTIONS
Latch-off
Latch-off
Auto-Restart
Auto-Restart
Latch-off
Latch-off
Auto-Restart
Auto-Restart
CURRENT LIMIT
275mA
175mA
275mA
175mA
250mA
150mA
250mA
150mA
TEMP.
RANGE
-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
Typical Application Circuit
G558/G559
V_IN
VIN
OUT
PACKAGE
(Green)
TSOT-23-5
TSOT-23-5
TSOT-23-5
TSOT-23-5
TSOT-23-5
TSOT-23-5
TSOT-23-5
TSOT-23-5
V_OUT
GND ²
ON 3
TSOT-23-5
Ver: 0.5
Sep 19, 2012
4 FLAG
FLAG
FLAG
ON
GND
ON
OFF
TEL: [phone]
http://www.gmt.com.tw
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