TL432AQDBVR

Overview

The TL432AQDBVR is an adjustable precision shunt regulator manufactured by Texas Instruments, designed for high-accuracy voltage reference applications. It operates within a wide temperature range of -40°C to +125°C and features an initial accuracy of 1%. The device supports an output voltage adjustment from 2.495 V up to 36 V, with a maximum series input voltage of 37 V. It offers a typical temperature coefficient of 92 PPM/°C and can sink a cathode current ranging from 600 µA to 100 mA. Packaged in a compact SOT-23-5 surface-mount format, it is suitable for space-constrained designs requiring reliable regulation.

Feature Summary

• Provides precise adjustable voltage reference functionality with tight initial tolerance
• Capable of sinking significant cathode current for effective shunt regulation
• Engineered for stable operation across extended industrial temperature ranges

Applications

• Precision linear regulators
• Adjustable power supply circuits
• Switching power supply feedback loops
• Battery charger management systems

Procurement Notes

Verify the specific suffix DBVR corresponds to the SOT-23-5 package and reel packaging configuration before ordering. Confirm that the A-grade accuracy meets the design requirements for initial tolerance. Ensure the operating environment stays within the specified -40°C to +125°C thermal limits. Check for any recent product change notices regarding assembly sites or marking updates. Validate compatibility with the target PCB footprint and soldering profile.

Selection Notes

Select this component when a 1% accuracy voltage reference is required in a small SOT-23-5 package. It is appropriate for applications needing an adjustable output up to 36 V with robust thermal performance. Consider the 92 PPM/°C temperature coefficient for stability needs. Compare against TL431 variants if different pinout configurations are preferred. Ensure the minimum cathode current requirement of 600 µA can be maintained in the circuit design.

Part Context

This part belongs to the TL432 family of adjustable precision shunt regulators from Texas Instruments. It shares functional similarities with the TL431 but may differ in specific electrical characteristics or package options. The TL432 series is widely used in power management ICs for providing stable reference voltages. The AQ designation indicates automotive-grade qualification and enhanced reliability standards.

Replacement Considerations

Direct substitutes include other Texas Instruments parts like TL432AIDBVR or TL432BCDBVRG4, depending on accuracy and temperature grade requirements. Cross-manufacturer equivalents exist but require careful verification of pinouts and electrical parameters.