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US251G-xx-AF5-R Datasheet(PDF) 4 Page - Unisonic Technologies

Part # US251G-xx-AF5-R
Description  CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES
PDF  5 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

US251G-xx-AF5-R Datasheet(HTML) 4 Page - Unisonic Technologies

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US251
Preliminary
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
4 of 5
www.unisonic.com.tw
QW-R129-008.a
ELECTRICAL CHARACTERISTICS
(VIN=5V, CIN=COUT=1μF, TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
ENABLE INPUT
Low
VIL
VIN=3.5V~5.5V, Switch OFF
0.8
V
CTL Threshold
High
VIH
VIN=3.5V~5.5V, Switch ON
2.0
V
CTL Input Current
II(CTL)
VCTL=0V~5.5V
0.01
µA
UNDER VOLTAGE LOCK
Under-Voltage Lockout
VUVLO
VIN increasing
2.8
V
Under-Voltage Hysteresis
∆VUVLO
VIN decreasing
0.1
V
SUPPLY CURRENT
ISW(ON)
Switch on, VOUT=OPEN
55
70
µA
Supply Current
ISW(OFF)
Switch off, VOUT=OPEN
0.1
1
µA
Output Leakage Current
IO(LEAK)
VCTL=0V, RLOAD=0Ω
0.5
10
µA
VOUT=5V, VIN=0V, measure IVOUT
0.1
1
µA
Reverse Leakage Current
IREV
-40°C≤ (TJ, TA)≤85°C, VOUT=5V, VIN=0V,
measure IVOUT
5
µA
CURRENT LIMIT
US251-08
0.6
0.8
1.1
A
US251-16
1.2
1.6
1.9
A
US251-22
1.6
2.2
2.7
A
Current Limit
ILIMIT
US251-29
2.3
2.9
3.6
A
US251-08
1
A
US251-16
1
A
US251-22
1
A
Short Circuit Fold-Back Current
ISC(FB)
VOUT=0V, measured prior
to thermal shutdown
US251-29
1
A
POWER SWITCH
IOUT=0.5A
US251-08
80
110
mΩ
IOUT=1.0A
US251-16
80
110
mΩ
IOUT=1.5A
US251-22
80
110
mΩ
Switch ON Resistance
RDS(ON)
IOUT=2.0A
US251-29
80
110
mΩ
Output Turn-ON Rise Time
tON(RISE)
10% ~ 90% of VOUT rising
400
µs
OVER CURRENT FLAG
FLAG OFF Current
(OFF)
FLG
I
FLG
V=5V
0.01
1
µA
FLAG Output Resistance
FLG
R
ISINK=1mA
20
400
Ω
FLAG Delay Time
tD
From fault condition to FLG assertion
10
ms
THERMAL SHUTDOWN
Thermal Shutdown Protection
TSD
130
℃
Thermal Shutdown Hysteresis
∆TSD
20
℃
Output Discharge
Output Pull-Down Resistance
RPD
VIN=VOUT=5.0V, disabled
400
800
Ω



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