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Global Mixed-mode Technology
Global Mixed-mode Technology

G526 Datasheet Preview

G526 Datasheet

Dual USB High-Side Power Switch

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G526 pdf
Global Mixed-mode Technology Inc.
G526
Dual USB High-Side Power Switch
Features
„Compliant to USB specifications
„Low MOSFET on resistance at 5.0V 140mmax.
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: 886-3-5788833
http://www.gmt.com.tw
1



Global Mixed-mode Technology
Global Mixed-mode Technology

G526 Datasheet Preview

G526 Datasheet

Dual USB High-Side Power Switch

No Preview Available !

G526 pdf
Global Mixed-mode Technology Inc.
G526
Absolute Maximum Ratings
Supply Voltage (VIN)..…………………..………….+6.0V
Fault Flag Voltage (VFLG)..………………………..+6.0V
Fault flag current (IFLG)..……….………………….50mA
Output Voltage (VOUT)..…….……………..….…..+6.0V
Output Current (IOUT)………………...Internally Limited
Control Input (VEN).…………………….……-0.3V to 6V
Storage Temperature (TS)…………….-65°C to +150°C
Lead Temperature (Soldering 5 sec.)……..…..…260°C
ESD protection…………………………………..……2KV
Operating Ratings
Supply Voltage (VIN).……………………...+3V to +5.5V
Ambient Operating Temperature (TA)…-40°C to +85°C
Thermal Resistance
SOIC (θJA)………………….……………….160°C/W
Electrical Characteristics(VIN=+5V; TA=25°C; unless noted.)
PARAMETER
CONDITION
MIN TYP MAX UNITS
Supply Current
Note *, switch off, OUT = open
Note *, switch on, OUT = open
25 µA
110 µA
Enable Input Threshold
low to high transition
high to low transition, Note *
2.4
1.0 2.2
2.5
V
V
Enable Input Current
VEN = VOH(min) = 2.4V
VEN = VOL(max) = 0.8V
0.01
0.01
1
1
µA
µA
Enable Input Capacitance
1 pF
Switch Resistance
Output Turn-On Delay
Output Turn-On Rise Time
Output Turn-Off Delay
Output Turn-Off Fall Time
VIN = 5V
VIN = 3V
RL = 10each output
RL = 10each output
RL = 10each output
RL = 10each output
100 m
140 m
1 ms
0.5 ms
1 20 µs
1 20 µs
Output Leakage Current
each output
10 µA
Short Circuit Current Limit
each output
0.5 0.75 1.25
A
Overtemperature shutdown
Threshold
TJ increasing
TJ decreasing
135 °C
125 °C
Error Flag Output Resistance
VIN = 5V, IL=10mA
VIN = 3.3V, IL =10mA
10
15
Error Flag Off Current
VFLAG = 5V
0.01 1
µA
UVLO Threshold
VIN = increasing
2.5 V
VIN = decreasing
2.3 V
General Note: Devices are ESD protected, however, handling precautions recommended.
Note *: Off is 1.0 and on is 2.4V for the G526-1. Off is 2.4V and on is 1.0V for the G526-2. The enable input
has approximately 200mV of hysteresis. See control threshold charts.
Pin Description
PIN NUMBER
1/4
2/3
6
7
8/5
PIN NAME
EN(A/B)
FLG(A/B)
GND
IN
OUT(A/B)
PIN FUNCTION
Enable (input): Logic-compatible enable input. High input >2.1V typical.
Low input <1.9V typical (-1 active high, -2 active low). Do not float.
Fault Flag (Output): Active-low, open-drain output. Indicates overcurrent, UVLO, and
thermal shutdown.
Ground: Supply return.
Supply Input: Output MOSFET source. Also supplies IC's internal circuitry. Connect to
positive supply.
Switch Output: Output MOSFET drain. Typically connect to switched side of load.
Ver 1.0
Dec 26, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
2


Part Number G526
Description Dual USB High-Side Power Switch
Maker Global Mixed-mode Technology
Total Page 6 Pages
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