G529 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Power Switch for MHL

Global Mixed-mode Technology
Power Switch for MHL
G529
Features
„ 70mΩ High-Side MOSFET
„ Current Limit for MHL Power Switch
„ Operating Range:2.7V to 5.5V
„ 1mS Typical Rise Time
„ Fast Overcurrent Response -3µs (TYPICAL)
„ Under voltage Lockout
„ 130µA 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
Output ( OC )
„ Output Reverse-Voltage Protection
„ SOT-23-6 Packages
Applications
„ MHL Power Switch
„ 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
General Description
The G529 is an integrated power switch for
self-powered and bus-powered Universal Serial Bus
(USB) applications. R_DS(ON) is 70mΩ.
Several Protection features include current limiting and
thermal shutdown to prevent catastrophic switch fail-
ure caused by increasing power dissipation when con-
tinuous heavy loads or short circuit occurs. 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 pow-
ered off. When the output voltage is higher than input
voltage, the power switch is turned off by internal out-
put reverse-voltage comparator.
OC is open-drain output report over-current or
over-temperature event and has typical 9ms deglitch
timeout period. In addition, OC also reports output
reverse-voltage condition with typical 5ms deglitch
timeout period.
Ordering Information
ORDER
NUMBER
MARKING
G529A1TB1U
529Ax
G529A2TB1U
529Bx
Note: TB: SOT-23-6
1: Bonding Code
U: Tape & Reel
Pin Configuration
ENABLE
Active High
Active Low
Current
Limit
1.2A
1.2A
Output
Shutdown
Resistor
No
No
TEMP.
RANGE
-40^oC to +85^oC
-40^oC to +85^oC
PACKAGE
(Green)
SOT-23-6
SOT-23-6
Typical Application Circuit
EN (EN) 1
G529
6 OC
GND 2
5 OUT
IN 3
4 OUT
SOT-23-6
Power Supply
2.7V to 5.5V
G529
IN
1µF^*
OC
OUT
0.1µF
Load
22µF
EN(EN)
ON
OFF
*: 1µF of input capacitor is enough in most application cases.
If the PCB trace of power rail to IN is long, larger input capacitor is necessary.
Ver: 0.4
Mar 27, 2013
TEL: [phone]
http://www.gmt.com.tw
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