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TL432AQDBZR

Automotive shunt Vref 1.24V ±0.5%, 80µA Imin, SOT-23-3

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Manufacturer Part：

TL432AQDBZR

Package：

SOT-23-3

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Description

Product Overview

The TL432AQDBZR from TI is an automotive-grade (Q1) precision shunt voltage reference with 1.24V adjustable output and ±0.5% initial accuracy. The 80 µA minimum cathode current enables low-power biasing in automotive ECU and sensor applications.

Key Specifications

Function Precision shunt voltage reference
Reference Voltage 1.24V (adjustable)
Initial Accuracy ±0.5% (A grade)
Min Cathode Current 80 µA
Temperature Range -40 to +125°C (Q1 automotive)
Package SOT-23-3 (2.9×1.3mm)

Working Principle

An internal bandgap reference generates a stable 1.24V between REF and ANODE. An error amplifier drives the cathode to maintain this voltage. When the cathode current exceeds 80 µA, the reference regulates. External resistor divider from CATHODE to ANODE sets any desired voltage above 1.24V. A-grade trimming ensures ±0.5% accuracy.

Applications

  • Automotive ECU voltage bias
  • Sensor excitation reference
  • Isolated feedback reference
  • LDO feedback divider

The TL432AQDBZR from TI is an automotive-grade (Q1) precision shunt voltage reference with 1.24V adjustable output and ±0.5% initial accuracy. The 80 µA minimum cathode current enables low-power biasing in automotive ECU and sensor applications.

An internal bandgap reference generates a stable 1.24V between REF and ANODE. An error amplifier drives the cathode to maintain this voltage. When the cathode current exceeds 80 µA, the reference regulates. External resistor divider from CATHODE to ANODE sets any desired voltage above 1.24V. A-grade trimming ensures ±0.5% accuracy.

Pin Name Description
1 REF Reference input
2 ANODE Anode (GND)
3 CATHODE Cathode output
  • Automotive ECU voltage bias
  • Sensor excitation reference
  • Isolated feedback reference
  • LDO feedback divider
Model Manufacturer Key Difference
TL431 TI 2.5V version
KA431 Various Lower cost alternative
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Shipping & Payment

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5. Local Pickup in Shenzhen

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Contact Information

Email: info@ic-vendor.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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