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| US222ALG-AF5-R Datasheet, PDF (3/4 Pages) Unisonic Technologies – LINEAR INTEGRATED CIRCUIT | |||
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US222
Preliminary
LINEAR INTEGRATED CIRCUIT
ï® ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Power Supply Voltage
VIN
Operating Junction Temperature Range
TJ
6.0
V
150
°C
Storage Temperature Range
TSTG
-65~+150
°C
Lead Temperature (Soldering, 10sec)
TLEAD
260
°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® RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Operating Ambient Temperature Range
ï® THERMAL DATA
SYMBOL
MIN
VIN
TA
-40
TYP
MAX
5.5
85
UNIT
V
°C
PARAMETER
Junction to Ambient
SYMBOL
θJA
ï® ELECTRICAL CHARACTERISTICS
RATINGS
300
UNIT
â/W
(VIN=5.0V, CIN=2.2µF, COUT=1.0µF, Typical TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Supply Voltage
VIN
Switch On Resistance
Supply Current
RDS(ON)
ISUPPLY
VIN=5.0V, IOUT=0.5A
VIN=5.0V, No Load
Current Limit
ILIMIT
US222AL/AH (2.0A), VOUT=4.0V 2.1
US222BL/BH (1.5A), VOUT=4.0V 1.6
US222CL/CH (1.0A), VOUT=4.0V 1.1
US222DL/DH (0.5A) , VOUT=4.0V 0.6
Fold-back Short Current
Shutdown Supply Current
ISHORT US222A/B/C/D, VOUT=0V
ISHUTDOWN Chip Disable, Shutdown Mode
Enable High Input Threshold
VENH
2.0
Enable Low Input Threshold
VENL
Enable Pin Input Current
Under Voltage Lockout
Threshold Voltage
IEN
Force 0V to 5.0V at EN Pin
-1.0
VUVLO VIN Increasing from 0V
Under Voltage Hysteresis
Output Pull Low Resistance
after Shutdown
VUVLOHY
RDISCHARGE
Output Turn-on Time
tON
From Enable Active to 90% of
Output
FLAG Pin Delay Time
tDFLG
From Over Current Fault
Condition to Flag Active
FLAG Pin Low Voltage
FLAG Pin Leakage Current
VFLG
ILEAKAGE
ISINK=1.0mA
FLAG Disable, Force 5.0V
Thermal Shutdown Temperature TOTSD
Thermal Shutdown Hysteresis
THYOTSD
TYP
85
68
2.7
2.0
1.5
1.0
1.0
0.1
2.5
0.2
100
400
12
35
150
30
MAX
5.5
110
95
3.6
2.8
2.1
1.4
5.0
0.8
1.0
UNIT
V
mâ¦
µA
A
A
A
A
A
µA
V
V
µA
V
V
â¦
µs
ms
mV
1.0
µA
°C
°C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 4
QW-R129-012.a
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