Global Mixed-mode Technology Inc.
Low MOSFET on resistance at 5.0V 140m鈩?max.
鈩?/div>
per channel
500mA minimum continuous load current per
channel
3.0V to 5.5V input
110碌A typical on-state supply current
1碌A 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
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.
Applications
USB host and self-powered hubs
Bus-powered hubs
Hot plug-in power supplies
Battery-charger circuits
Ordering Information
PART
G526-1
G526-2
ENABLE
Active High
Active Low
TEMP. RANGE
錛?0擄C
to
錛?5擄C
錛?0擄C
to
錛?5擄C
PACKAGE
8-Pin SOP
8-Pin SOP
Pin Configuration
G526
ENA
FLGA
FLGB
ENB
1
2
3
4
8 Pin SOP
8
7
6
5
OUTA
(ENA)1
IN
GND
OUTB
(FLGA)2
(FLGB)3
(ENB)4
G526
8(OUTA)
GATE
CONTROL
7 (IN)
GATE
CONTROL
5 (OUTB)
6 (GND)
Ver 1.0
Dec 26, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
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