TL1431 Datasheet, PDF (5/8 Pages) STMicroelectronics – PROGRAMMABLE VOLTAGE REFERENCE

DRIFT (mV) vs TEMPERATURE (^oC)
Vref drift (mV)
0
-2
-4
-6
-8
-10
-12
-14
-40 -20
Ik = 10mA
Vka = Vref = 2.5V
0
20 40 60
Temperature (°C)
80 100 120
TL1431
CATHODE CURRENT vs CATHODE VOLTAGE
Vka = Vre f
CATHODE CURRENT vs CATHODE VOLTAGE
(detailed version)
Vka = Vref
REFERENCE CURRENT vs TEMPERATURE
Iref (µA)
2
1,8
1,6
1,4
1,2
1
-40 -20
Ik = 10mA
Vka = Vref
0 20 40 60
Temperature (°C)
80 100 120
OFF-STATE CATHODE CURRENT vs
TEMPERATURE
Ioff (µA)
0,1
0,08
0,06
0,04
0,02
0
-40 -20
0
20 40 60
Temperature (°C)
80 100 120
RATIO OF CHANGE IN Vref TO CHANGE IN
VKA vs TEMPERATURE
d(Vref) / d(Vka ) (mV/V)
-0 ,9
-1
-1 ,1
-1 ,2
-1 ,3
-1 ,4
-1 ,5
-1 ,6
-40 -20 0
Ik = 10mA
Vka = Vref = 2.5V
20 40 60
Temperature (°C)
80 100 120
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