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TL431AS

Description
Regulator,
CategoryPower/power management    The power supply circuit   
File Size106KB,10 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Download Datasheet Parametric Compare View All

TL431AS Overview

Regulator,

TL431AS Parametric

Parameter NameAttribute value
package instruction,
Reach Compliance Codeunknown
Base Number Matches1
GS431B/TL431A/TL431
Preliminary
Vishay
formerly General Semiconductor
Adjustable Precision Shunt Regulators
SO-8
8
7
6
5
1
2
3
4
1
2
1
2
3
SOT-23
3
SOT-89
TO-92
S Suffix
U Suffix
X Suffix
1
LP Suffix
2
3
Features
• Programmable Output Voltage to 30V
• Precision
GS431B:
TL431A:
TL431:
Reference Voltage
2.495V ±0.5%
2.495V ±1.0%
2.495V ±1.6%
Description
The GS431B/TL431A/TL431 are 3-terminal adjustable
precision shunt regulators with guaranteed temperature
stability over the applicable extended commercial
temperature range. The output voltage may be set at any
level greater than 2.495V (V
REF
) up to 30V merely by
selecting two external resistors that act as a voltage divider
network. These devices have a typical output impedance of
0.08Ω. Active output circuitry provides very sharp turn-on
characteristics, making these devices excellent improved
replacements for zener diodes in many applications.
The precise ±0.5% reference voltage tolerance of the
GS431B makes it possible in many applications to avoid
the use of a variable resistor, consequently saving cost and
eliminating
drift and reliability problems associated with it.
• Sink Current Capability: 200mA.
• Minimum Cathode Current for Regulation: 250µA
• Equivalent Full-Range Temperature Coefficient:
50 ppm/°C
• Fast Turn-On Response
• Low Dynamic Output Impedance: 0.08Ω
• Low Output Noise
Symbol
CATHODE (C)
Applications
• Voltage Monitor
• Delay Timer
• Constant-Current Source/Sink
• High-Current Shunt Regulator
• Crow Bar
• Over-Voltage/Under-Voltage Protection
REF (R)
ANODE (A)
Mechanical Data
Case:
SO-8, SOT-23, SOT-89, TO-92
High temperature soldering guaranteed:
260°C/10 seconds at terminals
Block Diagram
REF (R)
+
-
2.495V
CATHODE (C)
Case outlines are on the back pages
ANODE (A)
Document Number 74806
1-Jul-02
www.vishay.com
1

TL431AS Related Products

TL431AS TL431X TL431AX TL431ALP TL431LP TL431S TL431AU-1
Description Regulator, Regulator, Regulator, Regulator, Regulator, Regulator, Regulator,
Reach Compliance Code unknown unknown unknown unknown unknown unknown unknown
Base Number Matches 1 1 1 1 - - -
Maker - Vishay - - Vishay Vishay Vishay
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