TL431 Datasheet – Shunt Regulator Diode – Motorola

Part Number : TL431

Function : Programmable Precision References

Package : TO 92, DIP 8 Pin, DIP 8 Pin Type

Manufactures : Motorola

Images and Pinouts :
TL431 Datasheet

Description :

The TL431, A, B integrated circuits are three–terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from V refto 36 V with two external resistors. These devices exhibit a wide operating current range of 1.0 mA to 100 mA with a typical dynamic impedance of 0.22 Ω. The characteristics of these references make them excellent replacements for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 V reference makes it convenient to obtain a stable reference from 5.0 V logic supplies, and since the TL431, A, B operates as a shunt regulator, it can be used as either a positive or negative voltage reference.

Features

1.  Programmable Output Voltage to 36 V
2. Voltage Reference Tolerance: ±0.4%, Typ @ 25°C (TL431B)
3. Low Dynamic Output Impedance, 0.22 ΩTypical
4. Sink Current Capability of 1.0 mA to 100 mA
5. Equivalent Full–Range Temperature Coefficient of 50 ppm/°C Typical
6. Temperature Compensated for Operation over Full Rated Operating Temperature Range
7. Low Output Noise Voltage

Block Diagram

TL431 Diagram

TL431 Datasheet

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TL431 Datasheet PDF – Programmable Shunt Regulator

Part Number : TL431

Function : Programmable Shunt Regulator

Package : TO 92, DIP 8, SOP 8 Pin

Manufacturers : Fairchild Semiconductor

Image

TL431 regulator

 

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.

 

Pinout :

TL431 datasheet pinout

 

Features

1. Programmable Output Voltage to 36 Volts
2. Low Dynamic Output Impedance 0.2ΩTypical
3. Sink Current Capability of 1.0 to 100mA
4. Equivalent Full-Range Temperature Coefficient of 50ppm/°C Typical
5. Temperature Compensated For Operation Over Full Rated Operating Temperature Range
6. Low Output Noise Voltage
7. Fast Turn-on Response

Block Diagram

Reference Site : https://www.onsemi.com/PowerSolutions/product.do?id=TL431

TL431 Datasheet PDF Download

TL431 pdf

Other data sheets within the file : TL431A, TL431ACD, TL431ACLP, TL431CD

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