G526 Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – Dual USB High-Side Power Switch

Global Mixed-mode Technology Inc.
G526
Dual USB High-Side Power Switch
Features
„Compliant to USB specifications
„Low MOSFET on resistance at 5.0V 140mΩ max.
per channel
„500mA minimum continuous load current per
channel
„3.0V to 5.5V input
„110µA typical on-state supply current
„1µA typical off-state supply current
„Output can be forced higher than input
(off-state)
„1.25A maximum current limit
„Thermal shutdown
„2.4V typical undervoltage lockout (UVLO)
„Open-drain fault flag pins
„1ms turn-on (soft-start) and fast turnoff
„Available with active-high or active-low
enable
Applications
„USB host and self-powered hubs
„Bus-powered hubs
„Hot plug-in power supplies
„Battery-charger circuits
Description
The G526 is a dual integrated high-side power switch
with independent enable and flag functions, optimized
for self-powered and bus-powered Universal Serial
Bus (USB) applications.
The G526 satisfies the following USB requirements:
the switch's low on-resistance meets USB voltage
drop requirements; fault current is limited to typically
750mA, well below the UL 25VA safety requirement;
and flag outputs are available to indicate fault condi-
tions to the local USB controller. Soft start eliminates
the momentary voltage drop on the upstream port that
may occur when the switch is enabled in bus-powered
applications.
Additional features include thermal shutdown to pre-
vent catastrophic switch failure from high-current loads,
under-voltage lockout (UVLO) ensuring that the device
remains off unless there is a valid input voltage pre-
sent, and an enable input that is compatible with both
3.3V and 5V logic.
The G526 is available in active-high and active-low
enable versions in 8-pin SOIC packages.
Ordering Information
PART
G526-1
G526-2
ENABLE
Active High
Active Low
TEMP. RANGE
－40°C to ＋85°C
－40°C to ＋85°C
PACKAGE
8-Pin SOP
8-Pin SOP
Pin Configuration
ENA ¹
FLGA 2
G526
8 OUTA
7 IN
FLGB 3
6 GND
ENB 4
5 OUTB
8 Pin SOP
G526
(ENA)1
(FLGA)2
GATE
CONTROL
(FLGB)3
(ENB)4
GATE
CONTROL
6 (GND)
8(OUTA)
7 (IN)
5 (OUTB)
Ver 1.0
Dec 26, 2000
TEL: [phone]
http://www.gmt.com.tw
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