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TL431 데이터시트(PDF) 11 Page - Shenzhen Tuofeng Semiconductor Technology Co

부품명 TL431
상세설명  TL431 Adjustable Reference Source
PDF  15 Pages
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제조업체  TUOFENG [Shenzhen Tuofeng Semiconductor Technology Co]
홈페이지  http://www.sztuofeng.com/?lang=en
Logo TUOFENG - Shenzhen Tuofeng Semiconductor Technology Co

TL431 데이터시트(HTML) 11 Page - Shenzhen Tuofeng Semiconductor Technology Co

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APPLICATION INFORMATION
NOTE A : R3 and R4 are selected to provide the desired LED intensity and cathode current ≥1㎃
to the TL431 at the available VI(BATT).
Figure 24. Voltage Monitor
Figure 25. Delay Timer
Figure 26. Precision Current Limiter
TL431
VI(BATT)
OUT
R1A
R1B
R2B
650Ω
R2A
R3
(SEE NOTE A)
R4
(SEE NOTE A)
LOW LIMIT=
VREF
R1B
R2B
（1+
）
HIGH LIMIT=
VREF
R1A
R2A
（1+
）
LED ON WHEN LOW LIMIT＜<VI(BATT)＜HIGH LIMIT
12V
R
C
ON
OFF
2㏀
TL431
DELAY=RxCxIN
12V
12V-VREF
(
）
TL431
VI(BATT)
IO
RCL
0.1%
IOUT=
VREF
RCL
+ IKA
R1 =
VI(BATT)
IO
HFE
+ IKA
R1
TL431
SHENZHEN TUOFENG SEMICONDUCTOR TECHNOLOGY CO.,LTD
www.sztuofeng.com
Jan,2019 V1.0
11
$GMXVWDEOH5HIHUHQFH6RXUFH
TL431



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