TL431AIL3T Datasheet, PDF (8/21 Pages) STMicroelectronics – Programmable voltage reference

Electrical characteristics
TL431, TL432
Figure 7. Test circuit for V_KA = V_ref
Input
R
I_K=10mA
Figure 8.
Input
Test circuit for programming mode
R
Output
Output
R1
I_REF
I_K
V_KA
V_REF
V_KA
R2
V_REF
( ) V_KA = V_REF
1 + ^R-----1-
R2
+ R1 x I_REF
Figure 9. Test circuit for I_off
V_KA=36V
I_OFF
Figure 10. Test circuit for phase margin and
voltage gain
10μF
10μF
I_K=10mA
Input
V_REF
Figure 11. Test circuit for response time
1 mA
0 mA
I_K=1mA
Figure 12. Reference voltage vs. temperature
2.54
2.52
2.50
V =V
KA
REF
I = 10 mA
K
2.48
2.46
2.44
-40 -20 0 20 40 60 80 100 120
Temperature (°C)
8/21
Doc ID 4467 Rev 11