TL1431 STMicroelectronics, TL1431 Datasheet - Page 7

• Manufacturer Part Number: TL1431
• Description: Programmable Voltage Reference
• Manufacturer: STMicroelectronics

Specifications of TL1431

• Adjustable Output Voltage: VREF to 36V
• Sink Current Capability: 1 to 100mA
• Typical Output Impedance: 0.22Ω

TL1431
Figure 10. Reference voltage vs. cathode
Figure 12. Reference current vs. temperature
Figure 14. Ratio of change in V
-1
-0.5
-1.0
-1.5
-2.0
2.0
1.5
1.0
0.5
0.0
0.0
3
2
1
0
-40
-40
-40
current
in V
-20
-20
-20
KA
0
0
Cathode current (mA)
vs. temperature
0
20
Temperature (°C)
20
Temperature (°C)
20
40
40
40
I
V
See figure 1
K
60
60
=10 mA
KA
=V
REF
V
See figure 1
REF
I
V
See figure 2
60
KA
K
80
=10 mA
KA
80
=V
=V
to change
REF
REF
80
100
100
100
120
120
Figure 11. Reference voltage vs. cathode
Figure 13. Off-state cathode current vs.
Figure 15. Drift of R
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.01
-0.02
-0.03
-0.04
0.10
0.08
0.06
0.04
0.02
0.00
0.00
0.0
-40
-40
current
temperature
-20
-20
0.2
0
0
Cathode current (mA)
I
V
see figure 1
K
KA
=10 mA
KA
20
0.4
Temperature(°C)
20
Temperature (°C)
=V
Electrical characteristics
REF
vs. temperature
= 2.5V
40
40
0.6
V
See figure 3
60
60
KA
= 36V
V
See figure 1
KA
80
80
=V
0.8
REF
100
100
120
120
1.0
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