AIC1525
USB High-Side Power Switch
Analog Integrations Corporation
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
www.analog.com.tw
DS-1525-00 May 16, 00
TEL: 886-3-5772500 FAX: 886-3-5772510
1
n
FEATURES
l
70m
(5V Input) High-Side MOSFET Switch.
l
500mA Continuous Load Current per Channel.
l
75
A Typical On-State Supply Current.
l
1
A Typical Off-State Supply Current.
l
Current-Limit / Short Circuit Protection.
l
Thermal Shutdown Protection under Overcurrent
Condition.
l
Undervoltage Lockout Ensures that Switch is off at
Start Up.
l
Output can be Forced Higher than Input (Off-State).
l
Open-Drain Fault Flag.
l
Slow Turn ON and Fast Turn OFF.
l
Enable Active-High or Active-Low.
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APPLICATIONS
USB Power Management.
l
Hot Plug-In Power Supplies.
l
Battery-Charger Circuit.
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TYPICAL APPLICATION
CIRCUIT
n
DESCRIPTION
The AIC1525 is an integrated high-side power
switch for self-powered and bus-powered Universal
Serial Bus (USB) applications. The high-side
switch is a MOSFET with 70m
R
DS(ON)
, which
meets USB voltage drop requirements for
maximum transmission wire length.
Multi-purpose open-drain fault flag output
indicates over-current limiting, thermal shutdown,
or undervoltage lockout. Output current is typically
limited to 0.85A below the 5A safety requirement,
and thermal shutdown function shuts the switch
off to prevent damage under overcurrent condition.
Guaranteed minimum output rise time limits
inrush current during hot plug-in, minimizing EMI
and preventing the voltage at upstream port from
dropping excessively.
Ferrite
Bead
0.01
F
33
F
*
0.1
F
33
F
5.0V
VCC
+
DATA
D+
D-
GND
VBUS
OVERCURREN
T
10K
U
U
S
S
B
B
C
C
o
o
n
n
t
t
r
r
o
o
l
l
l
l
e
e
r
r
GND
VIN
ON/OFF
4.50 V to 5.25V
Upstream VBUS
100mA max
DATA
A
A
I
I
C
C
1
1
7
7
2
2
2
2
OUT
IN
GND
+
1
F
C
IN
10
F
C
OUT
+
*
33
F, 16V Tantalum, or
100
F, 10V Electrolytic
Bold line indicate high- current traces
IN
OUT
OUT
CTL
FLG
GND
NC
IN
AIC1525
D+
D-
GND
VBUS
One-Port Self-Powered Hub
AIC1525
2
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ORDERING INFORMATION
ORDER NUMBER
AIC1525-0CN
AIC1525-1CN
(PLASTIC DIP)
PIN CONFIGURATION
TOP VIEW
PACKAGE TYPE
N: PLASTIC DIP
S: SMALL OUTLINE
TEMPERATURE RANGE
C: 0
C~70
C
CONTROL POLARITY
0: ACTIVE LOW
1: ACTIVE HIGH
AIC1525-XXX
AIC1525-0CS
AIC1525-1CS
(PLASTIC SO)
OUT
OUT
IN
IN
GND
FLG
NC
CTL
1
3
4
2
8
6
5
7
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ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
IN
) .......................................................... ... ... ... .......... ... ........... 7.0V
Fault Flag Voltage (V
FLG
) ........................................................... ... ... ... ... ... ..... ... ...... 7.0V
Fault Flag Current (I
FLG
) ...................... ... ... ........................ ... ... .................. ........ 50mA
Control Input (V
CTL
) ......................................................... ... ... ... ... ....... ... ..... . -0.3V ~15V
Operating Temperature Range
................. ... ... ... ..... ... ... ... ... .... ............... -20
C~80
C
Storage Temperature Range
....................................... ... ... .................. -65
C ~ 150
C
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TEST CIRCUIT
CTL
V
CC
+5V
10
0.1
F
OFF
ON
10K
AIC1525
OUT
FLG
GND
IN
IN
NC
OUT
AIC1525
3
n
ELECTRICAL CHARACTERISTICS
(V
IN
= 5V, Ta=25
C, unless otherwise
specified.)
PARAMETERS
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply Current
V
CTL
=Logic "0" , OUT=Open
V
CTL
=Logic "1" , OUT=Open
0.75
75
5
100
A
Control Input Voltage
V
CTL
=Logic "0"
V
CTL
=Logic "1"
2.4
1.7
2.0
0.8
V
Control Input Current
V
CTL
=Logic "0"
V
CTL
=Logic "1"
0.01
0.01
1
1
A
Control Input Capacitance
1
pF
Output MOSFET Resistance
70
100
m
Output Turn-On Rise Delay
R
L
= 10
each Output
100
S
Output Turn-On Rise Time
R
L
= 10
each Output
1000
4000
S
Output Turn-Off Delay
R
L
= 10
each Output
0.8
20
S
Output Turn-Off Fall Time
R
L
= 10
each Output
0.7
20
S
Output Leakage Current
10
A
Current Limit Threshold
0.7
1.0
1.25
A
Overtemperature Shutdown
Threshold
T
J
Increasing
T
J
Decreasing
135
125
C
Error Flag Output Resistance
V
IN
= 5V , I
L
=10 mA
V
IN
= 3.3V , I
L
=10mA
10
15
25
40
Error Flag Off Current
V
FLG
= 5V
0.01
1
A
UVLO Threshold
V
IN
Increasing
V
IN
Decreasing
2.6
2.4
V
AIC1525
5
ON-State Supply Current vs. Supply Voltage
Supply Voltage (V)
Switch-ON
Supply Current (
A)
2
3
4
5
6
7
50
60
70
80
90
100
-40
-20
0
20
40
60
80
100
120
2.3
2.4
2.5
2.6
2.7
2.8
rising
falling
UVLO Threshold Voltage vs. Temperature
Temperature (
C
)
UVLO
Threshold Voltage (V)
2.2
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TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
-40
-20
0
20
40
60
80
100
120
60
65
70
75
80
85
90
95
ON-State Supply Current vs. Temperature
Temperature (
C
)
Supply Current (
A)
-40
-20
0
20
40
60
80
100
120
10
4
10
3
10
2
10
1
OFF-State Supply Current vs. Temperature
Temperature (
C
)
Supply Current (
A)
OFF State Current vs. Supply Voltage
Supply Voltage (V)
Supply current (
A)
3
4
5
6
7
8
0
0.02
0.04
0.06
0.08
0.10
2
3
4
5
6
7
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
CTL rising
CTL falling
CTL Threshold Voltage vs. Supply Voltage
Supply Voltage (V)
Threshold
voltage
(V)
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