TL431 Fairchild Semiconductor, TL431 Datasheet - Page 6
TL431
Manufacturer Part Number
TL431
Description
The TL431/TL431A are three-terminal adjustable regulator series with a guaranteed thermal stability over applicable temperature ranges
Manufacturer
Fairchild Semiconductor
Datasheet
1.TL431.pdf
(10 pages)
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TL431/TL431A
Typical Application
6
Figure 10. Shunt Regulator
Figure 13. Current Limit or Current Source
V
O
=
⎛
⎝
1
+
TL431/A
R
------ -
R
1
2
⎞ V
⎠
ref
TL431/A
Figure 11. Output Control for Three-
Termianl Fixed Regulator
MC7805/LM7805
V
O
=
V
TL431/A
ref
⎛
⎝
1
+
R
------ -
R
1
2
⎞
⎠
Figure 14. Constant-Current Sink
Figure 12. High Current Shunt Regula-
TL431/A
V
O
=
⎛
⎝
1
tor
+
R
------ -
R
1
2
TL431/A
⎞ V
⎠
ref