Single High-Side Power Switch With Control
Function
n
ORDERING INFORMATION
0: Active Low1: Active High
n ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VIN)
.......................................................………….......……........... 7.0V
......………..............…………….…............... -40°C ~ 85°C....................................……….................. -65°C ~ 150°C
Operating Temperature Range
Storage Temperature Range
n ELECTRICAL CHARACTERISTICS (V
specified.)
PARAMETERS
Supply Current
Control Input Voltage
Control Input Current
Output MOSFET Resistance
Output Turn-On Rise Delay
Output Turn-On Rise Time
Output Turn-Off Delay
CONDITIONS
Switch Off, OUT=Open
Switch On, OUT=Open
VCTL =Logic “0”
VCTL =Logic “1”
VCTL =Logic “0”
VCTL =Logic “1”
IOUT = 500mA RL = 10 RL = 10 R = 10
IN= 5V, Ta=25°C, unless otherwise
MIN. 2.4
TYP. 0.75 80 0.01 0.01
MAX. 2 100 0.8 1 1 180 10
UNIT µA V µA m µS µS µS
120 30 500 0.2
2
n ELECTRICAL CHARACTERISTICS (Continued)
P ARAMETERS
Output Turn-Off Fall Time
Output Leakage Current
Current Limit Threshold
Thermal Limit
UVLO Threshold
C ONDITIONS
R = 10
VIN Increasing
VIN Decreasing
M IN.
0.6
T YP.
0.2 1.0 110 2.8 2.6
M AX.
10 2 1.25
U NIT
µS µ
A A
°C V
n BLOCK DIAGRAM
CTL
OUT
n TYPICAL PERFORMANCE CHARACTERISTICS
On-State Supply Current vs. Supply Voltage
9085
85
On-State Supply Current vs. Temperature
Supply Current (µA)
8075706560
Supply Current (µA)
3.5
4.0
80
75
70
3.04.55.05.56.06.57.07.5
65
-40-20020406080100
Supply Voltage (V)
Temperature (°C)
3
n TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Off-State Supply Current vs. Supply Voltage
12.011.5
201816
Off-State Supply Current vs. Temperature
Supply Current (nA)
Supply Current (nA)
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
11.09.59.08.58.03.0
14121086420
-40
-20
20
40
60
80
100
Supply Voltage (V)
Temperature (°C)
Output On Resistance vs. Supply Voltage
130125120115110105100
3.0
150
Switch On Resistance (m )
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
Switch On Ristance (m )
1401301201101009080
Supply Voltage (V)
-40-20020406080100
Temperature (°C)
UVLO Threshold Voltage vs. Temperature
3.0
1.20
2.9
Current Limit Threshold vs. Temperature
UVLO Threshold Voltage (V)
1.15
2.82.7
Current Limit (A)
1.101.051.000.950.90
2.62.52.4
-40
-20
20
40
60
80
100
0.850.80
-40
-20
20
40
60
80
100
Temperature (°C)
Temperature (°C)
4
n TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Output Rise Time vs. temperature
550
300
Output Fall Time vs. Temperature
Output Rise Time (µ S)
500
Output Fall Time (nS)
250
200
450
150
400
100
350
-40
-20
20
40
60
80
100
50
-40
-20
20
40
60
80
100
Temperature (°C)
Temperature (°C)
CTL Threshold Voltage vs. Supply Voltage
2.22.01.81.6
Turn On Characteristic (35 , Loading)
220µF
100µF
1.41.21.03.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
CTL
No Cap
IOUT, 200mA/DIV
Supply Voltage (V)
Turn On Rising Time (10 loading)Turn Off Falling Time (10 Loading)
IOUT
200mA/DIV
IOUT
VOUT
200mA/DIV
VOUT
CTL
CTL
5
n TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Turn On Characteristic (35 , 100µF Loading)
Turn Off Falling Time (35 , 100uF Loading)
IOUT
500mA/DIV
IOUT
500mA/DIV
VOUT
VOUT
CTL
CTL
Current Limit ThresholdThermal Limiting Transient Response
VOUT
VOUT
IOUT 500mA/DIV
) loading)
IOUT 500mA/DIV
Short Circuit TestingShort Circuit Response Time
Short
VOUT
Thermal Oscillation
IOUT
1A/DIV
IOUT 500mA/DIV
VOUT
6
n PIN DESCRIPTION
MSOP8, SO8
PIN 1/4/6/8: NC:
PIN 2: CTL
-TTL compatible control input. It
controls the power switch turn-on/turn-off. Active High forAIC1521-1 and active low forAIC1521-0.Power supply input.Chip power ground.
SOT89-5
PIN 1:IN
PIN 2:GND
PIN 3:OUT
PIN 4:NC
PIN 5:CTL
-TTL compatible control input. It
controls the power switch turn-on/turn-off. Active High forAIC1521-1 and active low forAIC1521-0.-Power supply input.-Chip power ground.- MOSFET switch output.
PIN 3: IN-
PIN 4: GND-
PN 7: OUT- MOSFET switch output.
n APPLICATION INFORMATIONS
l Current Limit
l
The current limit threshold is preset internally. Itprotects the output MOSFET switches fromdamage due to undesirable short circuitconditions or excess inrush current oftenencountered during hot plug-in. The AIC1521allows minimum 500mA continuous load currentper Channel.
l Transient Droop Requirements
USB support dynamic attachment (hot plug-in) ofperipherals. A current surge is caused by the inputcapacitance of downstream device. Ferrite beadsare recommended in series with all power andground connector pins. Ferrite beads reduce EMIand limit the inrush current during hot-attachmentby filtering high-frequency signals.l Short Circuit Transient
Bulk capacitance provides the short-term transientcurrent needed during a hot-attachment event. Witha 33uF, 16V tantalum or 100uF, 10V electrolyticcapacitor mounted close to downstream connectorshould provide transient drop protection.l Printed Circuit Layout
The power circuitry of USB printed circuit boardsrequires a customized layout to maximize thermaldissipation and to minimize voltage drop and EMI.
l Thermal Protection
When the chip temperature exceeds 110°C, thethermal protection function works.
l Supply Filtering
A 0.1uF to 1uF bypass capacitor from IN to GND,located near the device, is strongly recommendedto control supply transients. Without a bypasscapacitor, an output short may cause sufficientringing on the input (from supply lead inductance) todamage internal control circuitry.
7
¡½
PHYSICAL DIMENSIONS
l MSOP 8 (unit: mm)
SYMBOL
AA1
MIN0.76--0.280.132.902.90
0.65
4.800.40
MAX0.970.200.380.233.103.105.000.66
BCDEe
A
HL
l 8 LEAD PLASTIC SO (unit: mm)
SYMBOL
AA1
MIN1.350.100.330.194.803.80
MAX1.750.250.510.255.004.00
1.27(TYP)
6.201.27
BCDEe
A
HL
5.800.40
8
l SOT-89-5 (unit: mm)
SYMBOL
MIN1.400.321.400.304.402.40
300 (TYP)1.50 (TYP)4.200.80
MAX1.600.521.800.504.602.60
Abb1C
DEee1HELE
5.00---
l SOT-89-5 MARKING
Part No.AIC1521-0CWAIC1521-1CW
MarkingBH01BH02
9
百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说教育文库AIC1521-1CO中文资料在线全文阅读。
相关推荐：