Texas Instruments

TL431BIDBZT

Power Management

Manufacturer
MPN
TL431BIDBZT
Product Type
Package / Case
SOT-23-3
Key Attributes
Precision Programmable Reference

Technical Specifications

TypeDescription
Output TypeAdjustable
Output Current100 mA
Tolerance±0.5%
Minimum Cathode Current for Regulation700uA
Reference TypeParallel
TypeDescription
Output Voltage2.495V~36V
Supply Voltage2.5V~36V
Operating Temperature-40°C~+85°C@(Ta)
Features-
Package / CaseSOT-23-3

Product Introduction

The TL431 and TL432 devices are three-terminal adjustable shunt regulators with specified thermal stability over the applicable automotive and commercial temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5V) and 36V using two external resistors. These devices have a typical output impedance of 0.2Ω. The active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard voltage regulators, adjustable power supplies, and switching power supplies. The TL432 device offers identical functionality and electrical characteristics to the TL431, but with a different pin assignment for the DBV, DBZ, and PK packages.

Both the TL431 and TL432 devices are available in B, A, and standard grades, with initial tolerances at 25°C of 0.5%, 1%, and 2%, respectively. In addition, low output temperature drift confirms excellent stability over the entire temperature range.

TL43xxC devices operate over a temperature range of 0°C to 70°C, TL43xxI devices operate over a temperature range of -40°C to 85°C, and TL43xxQ devices operate over a temperature range of -40°C to 125°C.

Features

  • Reference voltage tolerance at 25°C: 0.5% (Grade B), 1% (Grade A), 2% (Standard Grade)
  • Adjustable output voltage: Vref to 36V
  • Operating temperature range: -40°C to 125°C
  • Typical temperature drift (TL43xB): 6mV (Grade C temperature), 14mV (Grade I temperature, Grade Q temperature)
  • Low output noise
  • Typical output impedance: 0.2Ω
  • Sink current capability: 1mA to 100mA

Applications

  • Rack server power supplies
  • Industrial AC/DC power supplies
  • AC inverters and variable frequency drives
  • Servo drive control modules
  • Laptop power adapter designs

Datasheet

📄 Open Download

Alternative Parts

Common TL431BIDBZT alternatives overseas buyers search for:

Compliance & Export Codes

TypeDetails
RoHSROHS3
ECCNEAR99
CNHTS8542399000
USHTS8542390001
TARIC8542399000
TypeDetails
CAHTS8542390000
BRHTS85423999
INHTS85423900
MXHTS8542.39.99

Sourcing Information

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