Wednesday, February 24, 2010

tl431 datasheet

tl431 datasheet

TL431/TL431A Programmable Shunt Regulator

Features

. Programmable Output Voltage to 36 Volts

. Low Dynamic Output Impedance 0.20 Typical

. Sink Current Capability of 1.0 to 100mA

. Equivalent Full-Range Temperature Coefficient of


50ppm/°C Typical
 
. Temperature Compensated For Operation Over Full Rated


Operating Temperature Range
 
. Low Output Noise Voltage
 
. Fast Turn-on Response
 
Description
 
The TL431/TL431Aare three-terminal adjustable regulator


series with a guaranteed thermal stability over applicable

temperature ranges. The output voltage may be set to any

value between VREF (approximately 2.5 volts) and 36 volts

with two external resistors These devices have a typical

dynamic output impedance of 0.2W Active output circuitry

provides a very sharp turn-on characteristic, making these

devices excel lent replacement for zener diodes in many

applications.
 
 
Internal Block Diagram
Test Circuits
 
download tl431 datasheet pdf

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