AIC1520
Single High-Side Power Switch
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FEATURES
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120mW (5V Input) High-Side MOSFET Switch.
500mA Continuous Load Current.
80mA Typical On-State Supply Current.
Current-Limit / Short Circuit Protection.
Thermal Limiting Protection under Overcurrent
Condition.
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DESCRIPTION
switch
for
The AIC1520 is an integrated high-side power
self-powered
and
bus-powered
Universal Serial Bus (USB) applications. The
high-side switch is a MOSFET with 120mW R
DS(ON)
,
which meets USB voltage drop requirements for
maximum transmission wire length.
Output current is typically limited to 1.0A, well
below the 5A safety requirement, and thermal
shutdown function shuts the switch off to prevent
damage under overcurrent conditions.
Guaranteed
minimum output rise time limits
Undervoltage Lockout Ensures that Switch is off at
Start Up.
Output can be Forced Higher than Input (Off-State).
Slow Turn ON and Fast Turn OFF.
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APPLICATIONS
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Motherboard USB Management.
USB Power Management.
Hot Plug-In Power Supplies.
Battery-Charger Circuit.
Power Distribution Switch.
inrush current during hot plug-in, minimizing EMI
and preventing the voltage at upstream port from
dropping excessively.
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TYPICAL APPLICATION CIRCUIT
Ferrite Bead
AIC1520
VCC
5.0V
+
33mF
IN
OUT
0.1mF
GND
+
VBUS
*
33mF
D+
0
.
01mF
D-
GND
*
33mF, 16V Tantalum, or
100mF, 10V Electrolytic
Bold line indicate high-current traces
DATA
USB High-Side Power Switch
Analog Integrations Corporation
DS-1520-00
July 7, 00
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
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AIC1520
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ORDERING INFORMATION
AIC1520CX
PACKAGING TYPE
X: SOT-89
Z: TO-92
ORDER NUMBER
AIC1520CX
(SOT-89)
PIN CONFIGURATION
FRONT VIEW
1: IN
2: GND
3: OUT
1
2
3
AIC1520CZ
(TO-92)
TOP VIEW
1: IN
2: GND
3: OUT
1
2
3
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ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
IN
)
.......................................................………….......……...........
7.0V
......………..............…………….…...............
-40°C ~ 85°C
....................................………..................
-65°C ~ 150°C
Operating Temperature Range
Storage Temperature Range
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ELECTRICAL CHARACTERISTICS
(V
IN
= 5V, Ta=25°C, unless otherwise
specified.)
PARAMETERS
Supply Current
Output MOSFET Resistance
Output Turn-On Rise Time
Output Turn-Off Fall Time
Output Leakage Current
Current Limit Threshold
Thermal Limit
UVLO Threshold
V
IN
Increasing
V
IN
Decreasing
0.6
1.0
110
2.8
2.6
CONDITIONS
Switch On, OUT=Open
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OUT
= 500mA
R
L
= 10W
R
L
= 10W
MIN.
TYP.
80
120
500
0.2
10
2
1.25
MAX.
100
180
UNIT
mA
mW
mS
mS
mA
A
°C
V
2
AIC1520
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TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
Output On Resistance vs. Supply Voltage
130
125
120
115
110
105
100
3.0
150
Output On Resistance vs. Temperature
Switch On Resistance (m
W
)
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
Switch
On Ristance (m
W
)
140
130
120
110
100
90
80
Supply Voltage (V)
-40
-20
0
20
40
60
80
100
Temperature (°C)
UVLO Threshold Voltage vs. Temperature
3.0
2.9
1.20
1.15
Current Limit Threshold vs. Temperature
UVLO Threshold Voltage (V)
Rising
2.8
2.7
Current Limit (A)
1.10
1.05
1.00
0.95
0.90
Falling
2.6
2.5
2.4
-40
-20
0
20
40
60
80
100
0.85
0.80
-40
-20
0
20
40
60
80
100
Temperature (°C)
Temperature (°C)
Turn On Rising Time (10W loading)
Output Rise Time vs. temperature
550
200mA/DIV
Output Rise Time (
m
S)
500
I
OUT
450
V
OUT
400
V
IN
350
-40
-20
0
20
40
60
80
100
Temperature (°C)
4
AIC1520
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TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
Turn On Characteristic (35W, 100mF Loading)
Turn On Characteristic (35W Loading)
500mA/div
I
OUT
220mF
100mF
V
OUT
no cap
I
OUT
, 200mA/div
VIN
Current Limit Threshold
Short Circuit Testing
V
OUT
V
OUT
1.2A
1A
I
OUT
I
OUT
500mA/DIV
500mA/DIV
Thermal Oscillation
Thermal Limiting Transient Response
Short Circuit Response Time
V
OUT
Short
I
OUT
500mA/DIV
Thermal limit (2W Loading)
I
OUT
1A/DIV
V
OUT
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