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TL431 데이터시트(PDF) 26 Page - Texas Instruments

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부품명 TL431
상세설명  ADJUSTABLE PRECISION SHUNT REGULATORS
PDF  41 Pages
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI - Texas Instruments

TL431 데이터시트(HTML) 26 Page - Texas Instruments

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TL431, TL431A, TL431B
TL432, TL432A, TL432B
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS543H − AUGUST 2004 − REVISED JANUARY 2005
26
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
APPLICATION INFORMATION
VO ≈5 V, 1.5 A
TL431
VI(BATT)
LM317
IN
OUT
Adjust
243
Ω
0.1%
243
Ω
0.1%
8.2 k
Ω
Figure 23. Precision 5-V 1.5-A Regulator
VO ≈5 V
TL431
VI(BATT)
27.4 k
Ω
0.1%
Rb
(see Note A)
27.4 k
Ω
0.1%
NOTE A: Rb should provide cathode current ≥1 mA to the TL431.
Figure 24. Efficient 5-V Precision Regulator
TL431
12 V
VCC
5 V
6.8 k
Ω
10 k
Ω
10 k
Ω
0.1%
10 k
Ω
0.1%
X
Not
Used
Feedback
TL598
+
−
Figure 25. PWM Converter With Reference



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