Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

Adjustable precision shunt regulators

Adjustable precision shunt regulators

Three-terminal shunt regulator family with an output voltage range between Vref = 2.495 V and 36 V, to be set by two external resistors.

Table 1. Product overview

Reference voltage

tolerance (Vref)

Temperature range (Tamb)

Pinning configuration

(see Table 5.)

0 °C to 70 °C

-40 °C to 85 °C

-40 °C to 125 °C

2.0 %

TL431CDBZR-Q

TL431IDBZR-Q

TL431QDBZR-Q

normal pinning

TL431FDT-Q

normal pinning

TL431MFDT-Q

mirrored pinning

1.0 %

TL431ACDBZR-Q

TL431AIDBZR-Q

TL431AQDBZR-Q

normal pinning

TL431AFDT-Q

normal pinning

TL431AMFDT-Q

mirrored pinning

0.5 %

TL431BCDBZR-Q

TL431BIDBZR-Q

TL431BQDBZR-Q

normal pinning

TL431BFDT-Q

normal pinning

TL431BMFDT-Q

mirrored pinning

Key features and benefits

Features and benefits

  • Programmable output voltage up to 36 V

  • Three different reference voltage tolerances:

    • Standard grade: 2 %

    • A-Grade: 1 %

    • B-Grade: 0.5 %

  • Typical temperature drift: 9 mV (in a range of 0 °C up to 70 °C)

  • Low output noise

  • Typical output impedance: 0.2 Ω

  • Sink current capability: 1 mA to 100 mA

  • Qualified according to AEC-Q100 (grade 1) and recommended for use in automotive applications

Key applications

Applications

  • Shunt regulator

  • Precision current limiter

  • Precision constant current sink

  • Isolated feedback loop for Switch Mode Power Supply (SMPS)

Products

Automotive qualified products (AEC-Q100/Q101)

Type number Description Status Quick access
TL431AFDT-Q Adjustable precision shunt regulators Production
TL431BIDBZR-Q Adjustable precision shunt regulators Production
TL431BQDBZR-Q Adjustable precision shunt regulators Production
TL431BMFDT-Q Adjustable precision shunt regulators Production
TL431MFDT-Q Adjustable precision shunt regulators Production
TL431BCDBZR-Q Adjustable precision shunt regulators Production
TL431FDT-Q Adjustable precision shunt regulators Production
TL431AQDBZR-Q Adjustable precision shunt regulators Production
TL431AIDBZR-Q Adjustable precision shunt regulators Production
TL431IDBZR-Q Adjustable precision shunt regulators Production
TL431BFDT-Q Adjustable precision shunt regulators Production
TL431CDBZR-Q Adjustable precision shunt regulators Production
TL431AMFDT-Q Adjustable precision shunt regulators Production
TL431QDBZR-Q Adjustable precision shunt regulators Production
TL431ACDBZR-Q Adjustable precision shunt regulators Production

Bipolar transistors

Type number Description Status Quick access
TL431AFDT-Q Adjustable precision shunt regulators Production
TL431BIDBZR-Q Adjustable precision shunt regulators Production
TL431BQDBZR-Q Adjustable precision shunt regulators Production
TL431BMFDT-Q Adjustable precision shunt regulators Production
TL431MFDT-Q Adjustable precision shunt regulators Production
TL431BCDBZR-Q Adjustable precision shunt regulators Production
TL431FDT-Q Adjustable precision shunt regulators Production
TL431AQDBZR-Q Adjustable precision shunt regulators Production
TL431AIDBZR-Q Adjustable precision shunt regulators Production
TL431IDBZR-Q Adjustable precision shunt regulators Production
TL431BFDT-Q Adjustable precision shunt regulators Production
TL431CDBZR-Q Adjustable precision shunt regulators Production
TL431AMFDT-Q Adjustable precision shunt regulators Production
TL431QDBZR-Q Adjustable precision shunt regulators Production
TL431ACDBZR-Q Adjustable precision shunt regulators Production

Documentation

File name Title Type Date
vp_TL431-Q_FAM.zip Adjustable precision shunt regulators Value proposition 2024-03-03
TL431-Q_FAM.pdf Adjustable precision shunt regulators Data sheet 2024-04-30

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