TL431B Series

Voltage Reference, Programmable Precision, Shunt Regulator

Catalog

Voltage Reference, Programmable Precision, Shunt Regulator

Part	Mounting Type	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Package / Case	Output Type	Tolerance	Current - Cathode [custom]	Reference Type	Voltage - Output (Max) [Max]	Temperature Coefficient	Voltage - Output (Min/Fixed) [Min]	Package / Case [y]	Package / Case [x]	Grade	Qualification	Package / Case [custom]	Package / Case	Supplier Device Package	Package / Case
ON Semiconductor TL431ACLP	Through Hole	TO-92-3	85 C	-25 °C	100 mA	TO-226-3 TO-92-3	Adjustable	1 %	1 mA	Shunt	36 V	50 ppm/°C	2.495 V
ON Semiconductor NCV431BVDR2G	Surface Mount	8-SOIC	125 °C	-40 °C	100 mA	8-SOIC	Adjustable	0.4 %	1 mA	Shunt	36 V	50 ppm/°C	2.495 V	3.9 mm	0.154 in	Automotive	AEC-Q100
ON Semiconductor TL431ACDMR2	Surface Mount	8-MSOP	70 °C	0 °C	100 mA	8-MSOP 8-TSSOP	Adjustable	1 %	1 mA	Shunt	36 V	50 ppm/°C	2.495 V					0.118 in	3 mm
ON Semiconductor TL431BIDMR2G	Surface Mount	8-MSOP	85 °C	-40 °C	100 mA	8-MSOP 8-TSSOP	Adjustable	0.4 %	1 mA	Shunt	36 V	50 ppm/°C	2.495 V					0.118 in	3 mm
ON Semiconductor TL431CLPRE	Through Hole	TO-92	70 °C	0 °C	100 mA	Formed Leads TO-226-3 TO-92-3 Long Body	Adjustable	2.2 %	1 mA	Shunt	36 V	50 ppm/°C	2.495 V							TO-226
ON Semiconductor TL431CDG	Surface Mount	8-SOIC	70 °C	0 °C	100 mA	8-SOIC	Adjustable	2.2 %	1 mA	Shunt	36 V	50 ppm/°C	2.495 V	3.9 mm	0.154 in
ON Semiconductor NCV431AIDMR2G	Surface Mount	8-MSOP	125 °C	-40 °C	100 mA	8-MSOP 8-TSSOP	Adjustable	1 %	1 mA	Shunt	36 V	50 ppm/°C	2.495 V			Automotive	AEC-Q100	0.118 in	3 mm
ON Semiconductor TL431CD	Surface Mount	8-SOP	85 C	-25 °C	100 mA	8-SOIC	Adjustable	2.21 %	1 mA	Shunt	36 V	50 ppm/°C	2.495 V	3.9 mm	0.154 in
ON Semiconductor TL431AILPRMG	Through Hole	TO-92-3	85 °C	-40 °C	100 mA	TO-226-3 TO-92-3	Adjustable	1 %	1 mA	Shunt	36 V	50 ppm/°C	2.495 V
ON Semiconductor TL431CP	Through Hole	8-PDIP	70 °C	0 °C	100 mA	8-DIP	Adjustable	2.2 %	1 mA	Shunt	36 V	50 ppm/°C	2.495 V						0.3 in		7.62 mm

Catalog

Voltage Reference, Programmable Precision, Shunt Regulator

Key Features

• Programmable Output Voltage to 36 V

• Voltage Reference Tolerance: +/- 0.4%, Typ @ 25°C (TL431B)

• Low Dynamic Output Impedance, 0.22WTypical

• Sink Current Capability of 1.0 mA to 100 mA

• Equivalent Full-Range Temperature Coefficient of 50 ppm/ °C Typical

• Temperature Compensated for Operation over Full Rated Operating Temperature Range

• Low Output Noise Voltage

• Pb-Free Packages are Available

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 Vrefto 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 0.22W. 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.