AIC1521
Single High-Side Power Switch With Control
Function
Analog Integrations Corporation 4F, 9 Industry E. 9th Rd, Science-Based Industrial Park, Hsinchu, Taiwan
DS-1521-00 012102
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
1
n
FEATURES
120m
(5V Input) High-Side MOSFET Switch.
l
500mA Continuous Load Current.
l
80
A Typical On-State Supply Current.
l
1
A Typical Off-State Supply Current.
l
Current-Limit / Short Circuit Protection.
l
Thermal Limiting 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).
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Slow Turn ON and Fast Turn OFF.
l
Active-High or Active-Low Enable.
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APPLICATIONS
l
Motherboard USB Management.
l
USB Power Management.
l
Hot Plug-In Power Supplies.
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Battery-Charger Circuit.
l
Power Distribution Switch.
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TYPICAL APPLICATION
CIRCUIT
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DESCRIPTION
The AIC1521 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 120m
R
DS(ON)
, which
meets USB voltage drop requirements for
maximum transmission wire length. The switch
ON/OFF is controlled by CTL pin.
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
inrush current during hot plug-in, minimizing EMI
and preventing the voltage at upstream port from
dropping excessively.
33
F
5.0V
VCC
OUT
IN
GND
*
33
F
D+
D-
GND
VBUS
0
.
01
F
*
33
F, 16V Tantalum, or
100
F, 10V Electrolytic
Bold line indicate high-current traces
0.1
F
Ferrite Bead
+
DATA
A
A
I
I
C
C
1
1
5
5
2
2
1
1
-
-
0
0
+
CTL
USB High-Side Power Switch
AIC1521
2
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ORDERING INFORMATION
PIN CONFIGURATION
NC
NC
OUT
GND
IN
CTL
NC
NC
MSOP8
TOP VIEW
NC
NC
OUT
GND
IN
CTL
NC
NC
SO8
TOP VIEW
AIC1521-XCXXX
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
BG: BAG (for SOT-89-5)
PACKAGING TYPE
O: MSOP
S: SO8
W: SOT-89-5
CONTROL POLARITY
0: Active Low
1: Active High
Example: AIC1521-0COTR
Active Low Version, in MSOP
Package & Taping & Reel Packing
Type
1
3
4
2
8
6
5
7
1
3
4
2
8
6
5
7
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ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
IN
).................................................... ... ......... ... ... ... .......... ... ........... 7.0V
Operating Temperature Range ......... ... ... ... .............. ... ... ... ... ... .... ............... -40
C ~ 85
C
Storage Temperature Range ................... ... ... ..................... ... ... .................. -65
C ~ 150
C
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ELECTRICAL CHARACTERISTICS
(V
IN
= 5V, T
A
=25
C, unless otherwise
specified.)
PARAMETERS
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply Current
Switch Off, OUT=Open
Switch On, OUT=Open
0.75
80
2
100
A
Control Input Voltage
V
CTL
=Logic "0"
V
CTL
=Logic "1"
2.4
0.8
V
Control Input Current
V
CTL
=Logic "0"
V
CTL
=Logic "1"
0.01
0.01
1
1
A
Output MOSFET Resistance
I
OUT
= 500mA
120
180
m
Output Turn-On Rise Delay
R
L
= 10
30
S
Output Turn-On Rise Time
R
L
= 10
500
S
Output Turn-Off Delay
R
L
= 10
0.2
10
S
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ELECTRICAL CHARACTERISTICS
(Continued)
AIC1521
3
PARAMETERS
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Output Turn-Off Fall Time
R
L
= 10
0.2
10
S
Output Leakage Current
2
A
Current Limit Threshold
0.6
1.0
1.25
A
Thermal Limit
110
C
UVLO Threshold
V
IN
Increasing
V
IN
Decreasing
2.8
2.6
V
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TYPICAL PERFORMANCE CHARACTERISTICS
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
60
65
70
75
80
85
90
Fig. 1 On-State Supply Current vs. Supply Voltage
Supply Current (
A)
Supply Voltage (V)
-
40
-20
0
20
40
60
80
100
65
70
75
80
85
Fig. 2 On-State Supply Current vs. Temperature
Supply Current (
A)
Temperature (
C)
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.5
10.0
10.5
11.0
11.5
12.0
Fig. 3 Off-State Supply Current vs. Supply Voltage
Supply Current (
nA)
Supply Voltage (V)
9.0
-40
-20
0
20
40
60
80
100
0
2
4
6
8
10
12
14
16
18
20
Fig. 4 Off-State Supply Current vs. Temperature
Supply Current (
nA)
Temperature (
C)
AIC1521
4
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TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
100
105
110
115
120
125
130
Fig. 5 Output On Resistance vs. Supply Voltage
Switch
On
Ristance (m
)
Supply Voltage (V)
Switch On Resistance (m
)
Temperature (
C)
-40
-20
0
20
40
60
80
100
80
90
100
110
120
130
140
150
Fig. 6 Output On Resistance vs. Temperature
UVLO Threshold Voltage (V)
Temperature (
C)
-40
-20
0
20
40
60
80
100
2.4
2.5
2.6
2.7
2.8
2.9
3.0
Falling
Rising
Fig. 7 UVLO Threshold Voltage vs. Temperature
Temperature (
C)
-40
-20
0
20
40
60
80
100
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
Fig. 8 Current Limit Threshold vs. Temperature
Current Limit (A)
Output Rise Time (
S)
Temperature (
C)
Fig. 9 Output Rise Time vs. temperature
-40
-20
0
20
40
60
80
100
350
400
450
500
550
Temperature (
C)
Fig. 10 Output Fall Time vs. Temperature
Output Fall Time (
nS)
-40
-20
0
20
40
60
80
100
50
100
150
200
250
300
AIC1521
5
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TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
Supply Voltage (V)
Fig. 11 CTL Threshold Voltage vs. Supply Voltage
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
1.0
1.2
1.4
1.6
1.8
2.0
2.2
CTL Rising
CTL Falling
Fig. 12 Turn On Characteristic (35
, Loading)
100
F
No Cap
I
OUT
, 200mA/DIV
220
F
CTL
Fig. 13 Turn On Rising Time (10
loading)
CTL
I
OUT
V
OUT
200mA/DIV
426
S
Fig. 14 Turn Off Falling Time (10
Loading)
CTL
I
OUT
V
OUT
107nS
200mA/DIV
Fig. 15 Turn On Characteristic (35
, 100
F Loading)
CTL
I
OUT
V
OUT
500mA/DIV
Fig. 16 Turn Off Falling Time (35
, 100
F Loading)
CTL
I
OUT
V
OUT
500mA/DIV
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