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TL431-Q1 View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR TI
Texas Instruments TI
TL431-Q1 Datasheet PDF : 23 Pages
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TL431-Q1
ADJUSTABLE PRECISION SHUNT REGULATOR
SGLS302C − MARCH 2005 − REVISED APRIL 2008
APPLICATION INFORMATION
VI(BATT)
IN
uA7805
Common
TL431
OUT
VO
R1
R2
ǒ Ǔ VO +
1
)
R1
R2
Vref
Minimum VO + Vref ) 5 V
Figure 20. Output Control of a Three-Terminal Fixed Regulator
VI(BATT)
R1
R2
TL431
VO
ǒ Ǔ VO +
1
)
R1
R2
Vref
Figure 21. High-Current Shunt Regulator
VI(BATT)
R1
TL431
R2
VO
C
(see Note A)
NOTE A: See the stability boundary conditions in Figure 16 to determine allowable values for C.
Figure 22. Crowbar Circuit
14
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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