AIC AIC1521-1CW, AIC1521-1CS, AIC1521-1CO, AIC1521-0CW, AIC1521-0CS Datasheet
...
AIC1521
*
*
Ferrite Bead
+
AAIICC11552211--00
+
Single High-Side Power Switch With Control
Function
FEATURES
n
• 120mΩ (5V Input) High-Side MOSFET Switch.
l 500mA Continuous Load Current.
l 80µA Typical On-State Supply Current.
l 1µA 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).
l Slow Turn ON and Fast Turn OFF.
l Active-High or Active-Low Enable.
APPLICATIONS
n
l Motherboard USB Management.
l USB Power Management.
l Hot Plug-In Power Supplies.
l Battery-Charger Circuit.
l Power Distribution Switch.
DESCRIPTION
n
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 120mΩ R
DS(ON)
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.
, which
TYPICAL APPLICATION
n
CIRCUIT
VCC
5.0V
33µF
0.1µF
CTL
33µF, 16V Tantalum, or
100µF, 10V Electrolytic
Bold line indicate high-current traces
USB High-Side Power Switch
OUTIN
GND
33µF
0.01µF
VBUS
D+
DGND
DATA
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
www.analog.com.tw
DS-1520-00 Aug 18, 00 TEL: 886-3-5772500 FAX: 886-3-5772510 1
ORDERING INFORMATION
AIC
1521
-XC
X
OUT
1
OUT
n
AIC1521
ORDER NUMBER PIN CONFIGURATION
PACKAGING TYPE
O: MSOP
S: SO8
W: SOT-89-5
CONTROL POLARITY
0: Active Low
1: Active High
ABSOLUTE MAXIMUM RATINGS
n
AIC1521-0CO
AIC1521-1CO
(MSOP8)
AIC1521-0CS
AIC1521-1CS
(SO8)
AIC1521-0CW
AIC1521-1CW
(SOT-89-5)
FRONT VIEW
NC
CTL
IN
NC
FRONT VIEW
NC 1
CTL
IN
NC
FRONT VIEW
1: IN
2: GND
3: OUT
4: NC
5: CTL
NC
8
2
3
4
2
3
4
7
NC
6
GND
5
NC
8
7
NC
6
GND
5
5 4
1 2 3
Supply Voltage (VIN) .......................................................………….......……........... 7.0V
Operating Temperature Range ......………..............…………….…............... -40°C ~ 85°C
Storage Temperature Range ....................................……….................. -65°C ~ 150°C
ELECTRICAL CHARACTERISTICS
n
(VIN= 5V, Ta=25°C, unless otherwise
specified.)
PARAMETERS CONDITIONS MIN. TYP. MAX. UNIT
Supply Current
Control Input Voltage
Control Input Current
Output MOSFET Resistance I
Switch Off, OUT=Open
Switch On, OUT=Open
V
=Logic “0”
CTL
V
=Logic “1”
CTL
V
=Logic “0”
CTL
V
=Logic “1”
CTL
= 500mA 120 180 mΩ
OUT
2.4
0.01
Output Turn-On Rise Delay RL = 10Ω 30 µS
Output Turn-On Rise Time RL = 10Ω 500 µS
0.75
80
0.01
100
0.8
2
µA
V
1
1
µA
Output Turn-Off Delay RL = 10Ω 0.2 10 µS
2
AIC1521
GATE
RS
75
80
On-State Supply Current vs. Supply Voltage
-
80
Temperature (
C)
ELECTRICAL CHARACTERISTICS
n
PARAMETERS
Output Turn-Off Fall Time RL = 10Ω 0.2 10 µS
Output Leakage Current 2 µA
Current Limit Threshold 0.6 1.0 1.25 A
Thermal Limit 110 °C
UVLO Threshold
BLOCK DIAGRAM
n
CTL
OSC.
Charge
Pump
CONDITIONS
VIN Increasing
VIN Decreasing
Thermal
Protection
(Continued)
MIN.
2.8
UVLO
TYP.
2.6
Current
Limit
MAX.
UNIT
V
IN
GND
TYPICAL PERFORMANCE CHARACTERISTICS
n
Supply Current (µA)
3.0 3.5 4.0
4.5 5.0 5.5 6.0 6.5 7.0 7.5
Supply Voltage (V)
Gate Control
On-State Supply Current vs. Temperature
Supply Current (µA)
40 -20 0 20 40 60 80 100
NMOS
OUT
°
3
Loading...