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TL431_12 Datasheet, PDF (4/7 Pages) Unisonic Technologies – 4PROGRAMMABLE PRECISION REFERENCE | |||
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TL431
LINEAR INTEGRATED CIRCUIT
 ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Cathode Voltage
VKA
37
V
Cathode Current Range(Continuous)
IKA
-100 ~ +150
mA
Reference Input Current Range
IREF
-0.05 ~ +10
mA
TO-92
770
mW
SOT-89
Power Dissipation
SOT-23/SOT-23-3/SOT-25
PD
800
mW
300
mW
SOP-8
600
mW
Operating Junction
TJ
+150
°C
Operating Ambient
TOPR
-40 ~ +85
°C
Storage Temperature
TSTG
-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.
 RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
MIN
TYP
Cathode Voltage
Cathode Current
VKA
IKA
VREF
1
 ELECTRICAL CHARACTERISTICS (TC= 25°C, unless otherwise specified.)
MAX
36
100
UNIT
V
mA
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
TL431-A 2.483 2.495 2.507 V
Reference Input Voltage
TL431-1
VREF VKA=VREF,IKA=10mA TL431-2
2.470 2.495 2.520 V
2.520 - 2.545 V
TL431-3 2.445 - 2.470 V
Deviation of reference Input Voltage Over
temperature
Ratio of Change in Reference Input
Voltage to the Change in Cathode Voltage
ÎVREF
ÎT
ÎVREF
ÎVKA
VKA=VREF,IKA=10mA,
0°C â¤TAâ¤70°C
IKA=10mA
ÎVKA=10V~VREF
ÎVKA=36V~10V
4.5 17 mV
-1.0 -2.7 mV/V
-0.5 -2.0 mV/V
Reference Input Current
Deviation of Reference Input Current Over
Full Temperature Range
IREF
ÎIREF
ÎT
IKA=10mA, R1=10kâ¦, R2=â
IKA=10mA, R1=10kâ¦, R2=â,
TA =full Temperature
1.5 4 µA
0.4 1.2 µA
Minimum Cathode Current for Regulation IKA(MIN) VKA=VREF
0.3 0.5 mA
Off-State Cathode Current
IKA(OFF) VKA=36V, VREF=0
0.05 1.0 µA
Dynamic Impedance
ZKA VKA=VREF, IKA=1~ 100mA,fâ¤1.0kHz
0.15 0.5 â¦
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 7
QW-R103-003.AG
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