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| TL431 Datasheet, PDF (2/4 Pages) Motorola, Inc – PROGRAMMABLE PRECISION REFERENCES | |||
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WS
TL431
ABSOLUTE MAXIMUM RATINGS
(Operating temperature range applies unless otherwise specified)
Characteristic
Symbol
Value
Unit
Cathode Voltage
Cathode Current Range (Continuous)
Reference Input Current Range
Operating Temperature Range
Storage Temperature Range
VKA
37
V
IK
-100 ~ +150
mA
IREF
0.05 ~ +10
mA
Ta
0 ~ +70
oC
Tstg
-65 ~ +150
oC
RECOMMENDED OPERATING CONDITIONS
Characteristic
Cathode Voltage
Cathode Current
Symbol
VKA
IK
Test Condition
Min Typ Max Unit
VREF
1.0
36 V
100 mA
ELECTRICAL CHARACTERISTICS
(Ta = 25oC, unless otherwise specified)
Characteristic
Symbol
Test Condition
Min Typ Max Unit
Reference Input Voltage
Deviation of Reference
Input Voltage Over-
Temperature (Note 1)
Ratio of Change in
Reference Input Voltage
to the Change in
Cathode Voltage
Reference Input Current
Deviation of Reference
Input Current Over Full
Temperature Range
Minimum Cathode
Current for Regulation
Off-State Cathode
Current
Dynamic Impedance
(Note2)
VREF
VREF(dev)
VKA = VREF, IK = 10mA
VKA = VREF, IK = 10mA
Tmin ⤠Ta ⤠Tmax
2.44 2.495 2.55
4
17
âV R EF
âV K A
IK = 10mA âVKA = 10V-VREF
-1.4 -2.7
IREF
IREF(dev)
âKKA = 36V-10V
IK = 10mA, R1 = 10Kâ¦, R2 = â
IK = 10mA, R1 = 10Kâ¦, R2 = â
Ta = Full Range
IK(min)
IK(off)
VKA = VREF
VKA = 36V, VREF = 0
ZKA
VKA = VREF, IK = 10mA to
100mA
f ⤠1.0KHz
-1.0 -2.0
2,0 4
0.4 1.2
0.4 1.0
0.1 1.0
0.2 0.5
V
mV
mV/V
µA
µA
mA
µA
â¦
4-2
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