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TL431BQDR

In Stock: 4,768

Adjustable precision shunt regulator

Manufacturers:
Texas Instruments, Inc
Mfr.Part#:
TL431BQDR
Datasheet:
TL431BQDR Datasheet (PDF)
Package/Case:
SOP8
Product Type:
Power Management ICs
RoHS:
Lifecycle:
Active
EDA/CAD Models:
Request Free CAD Models for TL431BQDR

TL431BQDR Information

Description

The TL431BQDR is a shunt voltage reference IC designed by Texas Instruments. Key features include adjustable output voltage (up to 36V), high accuracy at ±0.5%, and operating within an extended temperature range. This device finds application in various industries, such as power supplies, battery chargers, LED drivers, and even precision instrumentation due to its accurate performance. To summarize, the TL431BQDR is a highly accurate voltage reference IC that's widely used across diverse applications, thanks to its robust features.

Features

The TL431BQDR features a shunt voltage reference with adjustable output from 2.495V to 36V. It has a wide operating range (-40°C to 125°C) and low output noise. Key specifications include ±0.5% accuracy, 8-lead SOIC package, and sink current capability of 1mA to 100mA. This device finds applications in various fields such as power supplies, battery chargers, and control systems.

Package

The TL431BQDR has a Package Type of SOP8 (Small Outline Package).

Manufacturer

The TL431BQDR is manufactured by Texas Instruments (TI). TI is a global semiconductor company known for its innovation in electronic components and technology solutions.

Applications

The TL431BQDR is widely used in applications like voltage regulation, feedback control systems, power supplies, battery chargers, LED drivers, and temperature sensors. It also finds use in audio amplifiers, industrial control systems, automotive electronics, and precision instrumentation.

Equivalent

Some equivalent products to TL431BQDR by Texas Instruments are:
LM431AQR
LM431PQR These devices offer similar shunt voltage reference functionality.

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Reference	Reference Type	Shunt
Output Type	Adjustable	Voltage - Output (Min/Fixed)	2.495V
Voltage - Output (Max)	36 V	Current - Output	100 mA
Tolerance	±0.5%	Temperature Coefficient	-
Noise - 0.1Hz to 10Hz	-	Noise - 10Hz to 10kHz	-
Voltage - Input	-	Current - Supply	-
Current - Cathode	700 µA	Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount	Base Product Number	TL431
Package/Case	SOP8

TL431BQDR FAQs

1.Q: Are there related parts to the TL431BQDR?

A: Yes, other variants in the TL431 family (e.g., TL431A, TL431C) offer similar functionality with slight parameter differences.

2.Q: What is the thermal performance of the TL431BQDR?

A: The thermal resistance (θJA) depends on PCB layout. Check the datasheet for specific values under given conditions.

3.Q: What package does the TL431BQDR use?

A: It comes in an SOIC-8 package with dimensions 4.9 mm × 3.91 mm × 1.58 mm.

4.Q: What are the recommended operating conditions for the TL431BQDR?

A: Operate within -40°C to +125°C, with a shunt current range of 600 µA (min) to 100 mA (max).

5.Q: What is the maximum input voltage for the TL431BQDR?

A: The maximum input voltage (series VREF) is 36V.

6.Q: What are typical applications for the TL431BQDR?

A: It’s used in power supplies, battery chargers, voltage monitors, and as a replacement for Zener diodes in precision circuits.

7.Q: What are the key features of the TL431BQDR?

A: Key features include adjustable precision shunt regulation, 0.5% initial accuracy, 92 ppm/°C temperature coefficient, and a wide operating range of -40°C to +125°C.

8.Q: What is the pinout configuration of the TL431BQDR?

A: The TL431BQDR in the SOIC-8 package has pins for Reference (REF), Cathode (K), Anode (A), and NC (No Connection). Refer to the datasheet for the exact pinout diagram.

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Ratings and Reviews

N

N**s
05/07/2025

8

Modules working. Before ro walked 31 days
M

M**a
03/08/2024

3

Products like ~ ~ recommended
S

S**l
01/22/2023

1

Excellent thanks to the seller.
S

S**a
03/19/2021

17

Everything came quickly enough, we will try to fix our speakers)

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TL431BQDR Datasheet PDF

Preliminary Specification TL431BQDR PDF

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TL431BQDR PDF Preview

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