TL432BQDBVR

Overview

The TL432BQDBVR is an adjustable precision shunt regulator from the Texas Instruments TL432 family, designed for automotive applications with AEC-Q100 qualification. It operates within a voltage range of 2.495 V to 36 V and provides an initial accuracy of 0.5%. The device supports a maximum cathode current of 100 mA and features a temperature coefficient of 92 PPM/°C. It functions reliably across an extended industrial temperature range from -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount case, it serves as a high-performance reference solution for power management systems requiring precise voltage regulation.

Feature Summary

• AEC-Q100 qualified for automotive reliability standards
• Adjustable output voltage capability up to 36 V
• High precision with 0.5% initial accuracy tolerance
• Extended operating temperature range suitable for harsh environments

Applications

• Automotive power supply regulation
• Precision voltage references in instrumentation
• Battery charger circuitry
• Switching power supply feedback loops

Procurement Notes

Verify the specific suffix 'DBVR' confirms the SOT-23-5 package and tape-and-reel shipping format. Confirm AEC-Q100 compliance requirements match your system's automotive grade specifications. Check for any recent Product Change Notifications (PCN) regarding assembly sites or material changes. Ensure the 0.5% accuracy grade meets your design tolerances compared to lower-grade alternatives.

Selection Notes

Select this component when automotive qualification and high precision are required simultaneously. The SOT-23-5 package offers a balance of thermal performance and board space efficiency. Consider the 92 PPM/°C temperature coefficient against stricter stability needs. Compare against TL431 variants if fixed voltage references are sufficient, or TL432LI series if lower current consumption is prioritized over higher sink current capabilities.

Part Context

This part belongs to the TL432 family of adjustable precision shunt regulators manufactured by Texas Instruments. Unlike the TL431 which typically uses a TO-92 or larger package, the TL432 is optimized for surface-mount technologies. The 'Q' designation indicates automotive qualification, distinguishing it from standard commercial grade parts. It shares functional similarities with other shunt regulators but offers specific packaging and reliability enhancements for modern electronic assemblies.

Replacement Considerations

TL432BQDBZT: Same electrical specifications and automotive qualification but packaged in SOT-23-3 instead of SOT-23-5. Verify pinout compatibility before substitution.