XRP2524
1A Dual Channel USB 3.0 Power Distribution Switch
October 2012
Rev. 1.0.0
GENERAL DESCRIPTION
The XRP2524 is a dual channel integrated
high-side power distribution switch optimized
for self or bus-powered USB applications and it
is compliant with the latest USB 3.0
specification. It accepts an input voltage
between 2.7V and 6.5V allowing for operations
from industry standard 3.3V and 5V power
rails.
The XRP2524 is provided with an enable pin
while an error flag is available to indicate fault
conditions. With a low quiescent current as
well as a small package, the XRP2524 is ideal
for battery powered applications. The power-
switch rise and fall times are controlled to
minimize current surges during turn on/off.
Built-in over current, reverse current and over
temperature protections insure safe operations
under abnormal operating conditions.
XRP2524 is offered in a RoHS compliant
“green”/halogen free 8-pin NSOIC package.
APPLICATIONS
Self Powered USB 2.0 and 3.0 Hubs
USB Compliant V
BUS
Power Distribution
Portable Equipment
FEATURES
Dual Channel Current Switch
1A continuous load current per channel
1.5A Typical Over-current Limit
2.7V to 6.5V Input Voltage Range
USB 2.0 and USB 3.0 Compliant
Active High Enable
Soft Start
Channel Error Flag Indicator
9ms Blanking Time
UVLO, Reverse Current, Short circuit
and Thermal Shutdown Protection
RoHS Compliant, Green/Halogen Free
8-Pin NSOIC Package
TYPICAL APPLICATION DIAGRAM
Fig. 1: XRP2524 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
XRP2524
1A Dual Channel USB 3.0 Power Distribution Switch
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
reliability.
V
IN
...................................................................... 7.0V
V
ENX
, V
FLGX
................................................ -0.3V to 7.0V
Storage Temperature .............................. -65°C to 150°C
Junction Temperature .......................................... 150°C
Power Dissipation ................................ Internally Limited
Lead Temperature (Soldering, 10 sec).................... 260°C
ESD Rating (HBM - Human Body Model) .................... 2kV
OPERATING RATINGS
Input Voltage Range V
IN
............................... 2.7V to 6.5V
Ambient Temperature Range ..................... -40°C to 85°C
Thermal Resistance θ
JA
.....................................160ºC/W
ELECTRICAL SPECIFICATIONS
Specifications are for an Operating Temperature of T
A
= T
J
= 25°C only; limits applying over the full Operating Ambient
Temperature range are denoted by a “•”. Minimum and Maximum limits are guaranteed through test, design, or statistical
correlation. Typical values represent the most likely parametric norm at T
A
= 25°C, and are provided for reference purposes
only. Unless otherwise indicated, V
IN
= 5V, C
IN
= C
OUT
= 1µF, T
A
= 25°C.
Parameter
Input Supply Voltage
Input Quiescent Current
Input Shutdown Current
Maximum Output Current per
channel
Output Leakage Current
Output MOSFET Resistance
Output turn-on rise time
Output turn-off fall time
Current limit threshold
EN input threshold
EN Input Current
Over temperature shutdown
threshold
Over temperature shutdown
threshold hysteresis
Under-voltage lockout threshold
Under-voltage lockout hysteresis
FLG blanking time
FLG Leakage Current
1
0.6
1
0.5
90
1000
0.7
1.5
1.3
0.01
150
30
2.3
200
9
0.01
1
1
110
2500
20
2
1.8
0.1
Min.
2.7
80
0.2
Typ.
Max.
6.5
160
2
Units
V
µA
µA
A
µA
mΩ
µs
µs
A
V
µA
°C
°C
V
mV
ms
µA
V
FLG
=5V
V
IN
rising
EN = HIGH
Temperature rising
V
EN
=0V, V
OUT
=0V
I
OUT
=0.1A
R
L
=10Ω each output, C
OUT
not used
R
L
=10Ω each output, C
OUT
not used
V
IN
=5V, No load
Both channels enabled
V
IN
=5V, No load, Switch OFF
Conditions
© 2012 Exar Corporation
2/10
Rev. 1.0.0
XRP2524
1A Dual Channel USB 3.0 Power Distribution Switch
BLOCK DIAGRAM
Fig. 2: XRP2524 Block Diagram
PIN ASSIGNMENT
XRP2524
ENA
FLGA
FLGB
ENB
1
2
3
4
8
7
6
5
OUTA
IN
GND
OUTB
NSOIC-8L
Fig. 3: XRP2524 Pin Assignment
© 2012 Exar Corporation
3/10
Rev. 1.0.0
XRP2524
1A Dual Channel USB 3.0 Power Distribution Switch
PIN DESCRIPTION
Name
EN
X
FLG
X
GND
IN
OUT
X
Pin Number
1, 4
2, 3
6
7
5, 8
Channel Enable Input
Active High
Error Flag Signal
Active low open drain output.
Active on over-current, over-temperature or short-circuit conditions.
Ground Signal
Voltage Input Pin
Voltage Output Pin
Description
ORDERING INFORMATION
Part Number
XRP2524IDTR-F
XRP2524EVB
Temperature
Range
-40°C≤T
A
≤+85°C
Marking
2524ID
YYWWF
XXX
Package
NSOIC-8
Packing Quantity
Note 1
Note 2
Dual Channel
2.5K/Tape & Reel RoHS Compliant
Active high
Halogen Free
XRP2524 Evaluation Board
“YY” = Year – “WW” = Work Week – “X” = Lot Number; when applicable.
© 2012 Exar Corporation
4/10
Rev. 1.0.0
XRP2524
1A Dual Channel USB 3.0 Power Distribution Switch
TYPICAL PERFORMANCE CHARACTERISTICS
All data taken at V
IN
= 5V, C
IN
= 1µF, C
OUT
= 1µF, T
J
= T
A
= 25°C, unless otherwise specified - Schematic and BOM from
Application Information section of this datasheet.
Fig. 4: Output On-Resistance vs. Supply Voltage
Fig. 5: Output On-Resistance vs. Temperature
Fig. 6: ON-State Supply Current vs. Supply Voltage
Fig. 7: ON-State Supply Current vs. Temperature
Fig. 8: Current Limit Threshold vs. Supply Voltage
Fig. 9: Current Limit Threshold vs. Temperature
© 2012 Exar Corporation
5/10
Rev. 1.0.0
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