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TL431

Fairchild Semiconductor
Part Number TL431
Manufacturer Fairchild Semiconductor
Description Programmable Shunt Regulator
Published Jun 22, 2014
Detailed Description www.fairchildsemi.com TL431/TL431A Programmable Shunt Regulator Features • • • • Programmable Output Voltage to 36 Vol...
Datasheet PDF File TL431 PDF File

TL431
TL431

Overview
www.
fairchildsemi.
com TL431/TL431A Programmable Shunt Regulator Features • • • • Programmable Output Voltage to 36 Volts Low Dynamic Output Impedance 0.
2Ω 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/TL431A are 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.
2Ω.
Active output circuitry provides a very sharp turn-on characteristic, making these devices excel lent replacement for zener diodes in many applications.
TO-92 1 1.
Ref 2.
Anode 3.
Cathode 8-DIP 1 1.
Cathode 2.
3.
4.
5.
7.
NC 6.
Anode 8.
Ref 8-SOP 1 1.
Cathode 2.
3.
6.
7.
Anode 8.
Ref 4.
5.
NC Rev.
1.
0.
4 ©2011 Fairchild Semiconductor Corporation TL431/TL431A Internal Block Diagram + - Absolute Maximum Ratings (Operating temperature range applies unless otherwise specified.
) Parameter Cathode Voltage Cathode Current Range (Continuous) Reference Input Current Range Power Dissipation D, LP Suffix Package P Suffix Package Operating Temperature Range Junction Temperature Storage Temperature Range Symbol VKA IKA IREF PD TOPR TJ TSTG Value 37 -100 ~ +150 -0.
05 ~ +10 770 1000 -25 ~ +85 150 -65 ~ +150 Unit V mA mA mW mW °C °C °C Recommended Operating Conditions Parameter Cathode Voltage Cathode Current Symbol VKA IKA Min VREF 1.
0 Typ Max 36 100 Unit V mA 2 TL431/TL431A Electrical Characteristics (TA = +25°C, unless otherwise specified) Parameter Reference Input Voltage Deviation of Reference Input Voltage OverTemperature (Note 1) Ratio of Change in Reference Input Voltage to the Change in Cathode Voltage Reference Input Current Deviation of Refe...


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