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| US2005 Datasheet, PDF (3/5 Pages) Unisonic Technologies – FIXED CURRENT LIMIT POWER DISTRIBUTION SWITCH | |||
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US2005
Preliminary
CMOS IC
ï® ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified) (Note 1)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
Enable Input Voltage
VIN
6
V
VEN
5.5
V
Flag Voltage
Power Dissipation (TA=25°C)
VFLG
PD
5.5
V
0.4
W
Junction Temperature
Storage Temperature
TJ
TSTG
150
°C
-65~150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ï® THERMAL DATA
PARAMETER
Package Thermal Resistance
SYMBOL
θJA
ï® RECOMMENDED OPERATING CONDITIONS (Note 2)
RATINGS
230
UNIT
°C/W
PARAMETER
Supply Input Voltage
Enable Input Voltage
Continuous Output Current Range
Ambient Operating Temperature
SYMBOL
VIN
VI(EN)
TA
ï® ELECTRICAL CHARACTERISTICS
RATINGS
2.5~5.5
0~5.5
0~2.1
-40~+85
(VIN=5V, TAMBIENT=25°C unless specified otherwise. Bold indicates -40°C~+85°C limits.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Switch Input Voltage
VIN
2.5
Internal Supply Current
IIN
Switch=OFF, ENABLE=0V
Internal Supply Current
IIN
Switch=ON, IOUT=0, ENABLE=1.5V
Output Leakage Current
ILEAK
VIN=5V, VOUT=0V, ENABLE=0
Power Switch Resistance
RDS(ON)
VIN=5V, IOUT=100mA
Current Limit: â0.5
ILIMIT
VOUT=0.8VIN to VOUT=1V
0.5
Current Limit: â0.8
ILIMIT
VOUT=0.8VIN to VOUT=1V
0.8
Current Limit: â1.2
ILIMIT
VOUT=0.8VIN to VOUT=1V
1.2
Secondary Current Limit
(Kickstart)
ILIMIT_2nd
VIN=2.7V
2.2
Under Voltage Lock Out
Threshold
UVLOTHRESHOLD
VIN
VIN
Rising
Falling
2.0
1.9
ENABLE Input Voltage
VEN
VIL(max.)
VIH(min)
1.5
ENABLE Input Current
IEN
VEN=0V~5.0V
Fault Status Output Voltage
VFAULT
IOL=10mA
Over-Temperature Threshold
OTTHRESHOLD
TJ Increasing
TJ Decreasing
UNIT
V
V
A
°C
TYP
1
80
12
70
0.7
1.1
1.6
MAX
5.5
5
300
100
100
125
0.9
1.5
2.1
UNIT
V
μA
μA
μA
mâ¦
mâ¦
A
A
A
4
6
A
2.25 25
V
2.15 2.4 V
0.5 V
V
1
5
μA
0.25 0.4 V
145
135
°C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 5
QW-R502-A04.a
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