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LM431ACM/NOPB Fiches technique(PDF) 10 Page - Texas Instruments

No de pièce LM431ACM/NOPB
Description  LM431 Adjustable Precision Zener Shunt Regulator
PDF  37 Pages
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Fabricant  TI2 [Texas Instruments]
Site Internet  https://www.ti.com
Logo TI2 - Texas Instruments

LM431ACM/NOPB Fiches technique(HTML) 10 Page - Texas Instruments

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LM431
SNVS020H – MAY 2000 – REVISED JANUARY 2016
www.ti.com
8 Detailed Description
8.1 Overview
The LM431 is an adjustable precision shunt voltage regulator with ensured temperature stability over the entire
temperature range. The part has three different packages available to meet small footprint requirements, and is
available in three different tolerance grades.
8.2 Functional Block Diagram
Figure 9. LM431 Symbol
Figure 10. LM431 Block Diagram
8.3 Feature Description
The LM431 is a precision Zener diode. The part requires a small quiescent current for regulation, and regulates
the output voltage by shunting more or less current to ground, depending on input voltage and load. The only
external component requirement is a resistor between the cathode and the input voltage to set the input current.
An external capacitor can be used on the input or output, but is not required.
10
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Product Folder Links: LM431



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