Voltage Reference, Programmable Precision, Shunt Regulator

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Overview

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 Vref to 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 W. 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.

  • Programmable Output Voltage to 36 V
  • Voltage Reference Tolerance: +/- 0.4%, Typ @ 25°C (TL431B)
  • Low Dynamic Output Impedance, 0.22 W Typical
  • 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

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21

Product

Status

ECAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Type

V(BR) Typ (V)

Tolerance (%)

IQ Typ (mA)

IR Min (mA)

VF Max (V)

TA Min (°C)

TA Max (°C)

Pricing ($/Unit)

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TL431ILPRPG

Active

Pb

A

H

P

TO-92

NA

0

FNFLD

2000

N

Adjustable

2.5

2.2

-

1

36

-40

85

$0.1249

More Details

NCV431BVDR2G

Active

Pb

A

H

P

SOIC-8

1

260

REEL

2500

Y

Adjustable

2.5

0.4

0.5

1

36

-40

125

$0.24

More Details

TL431ILPRAG

Active

Pb

A

H

P

TO-92

NA

0

REEL

2000

N

Adjustable

2.5

2.2

-

1

36

-40

85

$0.1156

More Details

TL431IDR2G

Active

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Adjustable

2.5

2.2

-

1

36

-40

85

$0.1319

More Details

TL431ILPG

Active

Pb

A

H

P

TO-92

NA

0

BLKBG

2000

N

Adjustable

2.5

2.2

-

1

36

-40

85

$0.1235

More Details

TL431CLPRPG

Active

Pb

A

H

P

TO-92

NA

0

FNFLD

2000

N

Adjustable

2.5

2.2

-

1

36

0

70

$0.1257

More Details

TL431CLPG

Active

Pb

A

H

P

TO-92

NA

0

BLKBG

2000

N

Adjustable

2.5

2.2

-

1

36

0

70

$0.1243

More Details

NCV431AIDR2G

Active

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Adjustable

2.5

1

0.5

1

36

-40

125

$0.3373

More Details

TL431CDR2G

Active

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Adjustable

2.5

2.2

-

1

36

0

70

$0.132

More Details

TL431CLPRAG

Active

Pb

A

H

P

TO-92

NA

0

REEL

2000

N

Adjustable

2.5

2.2

-

1

36

0

70

$0.1257

More Details

NCV431BVDMR2G

Active

Pb

A

H

P

Micro8

1

260

REEL

4000

N

Adjustable

2.5

0.4

0.5

1

36

-40

125

$0.336

More Details

NCV431AIDMR2G

Active

Pb

A

H

P

Micro8

1

260

REEL

4000

Y

Adjustable

2.5

1

0.5

1

36

-40

125

$0.2345

More Details

TL431CDG

Last Shipments

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Adjustable

2.5

2.2

-

1

36

0

70

Price N/A

More Details

TL431CLPRMG

Last Shipments

Pb

A

H

P

TO-92

NA

0

FNFLD

2000

N

Adjustable

2.5

2.2

-

1

36

0

70

Price N/A

More Details

TL431IDMR2G

Last Shipments

Pb

A

H

P

Micro8

1

260

REEL

4000

N

Adjustable

2.5

2.2

-

1

36

-40

85

Price N/A

More Details

TL431CDMR2G

Last Shipments

Pb

A

H

P

Micro8

1

260

REEL

4000

N

Adjustable

2.5

2.2

-

1

36

0

70

Price N/A

More Details

TL431CLPREG

Last Shipments

Pb

A

H

P

TO-92

NA

0

REEL

2000

N

Adjustable

2.5

2.2

-

1

36

0

70

Price N/A

More Details

TL431IPG

Obsolete

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Adjustable

2.5

2.2

-

1

36

-40

85

Price N/A

More Details

TL431CPG

Obsolete

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Adjustable

2.5

2.2

-

1

36

0

70

Price N/A

More Details

TL431CLP

Obsolete

Pb

A

H

P

TO-92

NA

0

BLKBG

2000

N

Adjustable

2.5

2.2

-

1

36

0

70

Price N/A

More Details

TL431IDG

Obsolete

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Adjustable

2.5

2.2

-

1

36

-40

85

Price N/A

More Details

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