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TL431LI Datasheet(PDF) 21 Page - Texas Instruments

Part # TL431LI
Description  TL431LI / TL432LI Programmable Shunt Regulator with Optimized Reference Current
PDF  35 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TL431LI Datasheet(HTML) 21 Page - Texas Instruments

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VO
TL43xLIx
VI(BATT)
R1
R2
V
O
1
R1
R2
V
ref
=
+
(
(
Copyright © 2017, Texas Instruments Incorporated
VO
TL43xLIx
VI(BATT)
uA7805
IN
OUT
Common
R1
R2
V
O
1
R1
R2
V
ref
Minimum V
O
V
ref
5 V
=
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=
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Copyright © 2017, Texas Instruments Incorporated
R
(see Note A)
VO
TL43xLIx
VI(BATT)
2N222
2N222
4.7 kΩ
R1
0.1%
R2
0.1%
0.01 µF
30 Ω
O
ref
R1
V
= 1 +
V
R2
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Copyright © 2017, Texas Instruments Incorporated
21
TL431LI
TL432LI
www.ti.com
SLVSDQ6A – JULY 2018 – REVISED NOVEMBER 2018
Product Folder Links: TL431LI TL432LI
Submit Documentation Feedback
Copyright © 2018, Texas Instruments Incorporated
10.3 System Examples
A.
R should provide cathode current
≥1 mA to the TL431LI at minimum V(BATT).
Figure 27. Precision High-Current Series Regulator
Figure 28. Output Control of a Three-Terminal Fixed Regulator
Figure 29. High-Current Shunt Regulator



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