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TL431CPWR 数据表(PDF) 26 Page - Texas Instruments

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部件名 TL431CPWR
功能描述  Precision Programmable Reference
PDF  82 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

TL431CPWR 数据表(HTML) 26 Page - Texas Instruments

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VO
TL431
VI(BATT)
R1
R2
C
(see Note A)
VO
TL431
VI(BATT)
R1
R2
V
O
1
R1
R2
V
ref
=
+
(
(
VO
TL431
VI(BATT)
uA7805
IN
OUT
Common
R1
R2
V
O
1
R1
R2
V
ref
Minimum V
O
V
ref
5 V
=
+
=
+
(
(
R
(see Note A)
VO
TL431
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
æ
ö
ç
÷
è
ø
TL431, TL431A, TL431B
TL432, TL432A, TL432B
SLVS543O – AUGUST 2004 – REVISED JANUARY 2015
www.ti.com
10.3 System Examples
A.
R should provide cathode current
≥1 mA to the TL431 at minimum V(BATT).
Figure 29. Precision High-Current Series Regulator
Figure 30. Output Control of a Three-Terminal Fixed Regulator
Figure 31. High-Current Shunt Regulator
A.
Refer to the stability boundary conditions in Figure 16 and Figure 18 to determine allowable values for C.
Figure 32. Crowbar Circuit
26
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Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TL431 TL431A TL431B TL432 TL432A TL432B



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