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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1% SOT23-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The TL431AQDBVT is an adjustable precision shunt regulator from the Texas Instruments TL431 family, housed in a SOT-23-5 surface-mount package. It provides an adjustable output voltage range from 2.495 V to 36 V with an initial accuracy of ±1%. The device supports a maximum cathode current of 100 mA and operates within an extended temperature range of -40°C to +125°C. It features a low temperature coefficient of 92 ppm/°C and complies with RoHS3 standards.
Feature Summary
- Adjustable precision shunt regulation topology for stable reference applications
- High initial accuracy of ±1% ensures precise voltage control
- Extended industrial temperature rating suitable for harsh environments
- Automotive-grade qualification for reliable performance
Applications
- Precision voltage references in power supply circuits
- Voltage monitoring and threshold detection systems
- Linear regulator feedback loops
- Battery management system references
Procurement Notes
Verify the specific suffix 'Q' indicates automotive grade qualification and 'A' denotes ±1% accuracy tolerance. Confirm the 'V' suffix corresponds to the tape and reel packaging format required for automated assembly processes. Ensure compatibility with RoHS3 directives before final procurement integration.
Selection Notes
Select this component when high accuracy and automotive reliability are required in a compact SOT-23-5 footprint. Consider the 100 mA cathode current limit for load requirements. Evaluate the thermal performance within the specified -40°C to +125°C operating range to ensure stability under varying environmental conditions.
Part Context
This part belongs to the widely used TL431 series of programmable shunt regulators. It serves as a cost-effective alternative to Zener diodes, offering superior temperature stability and lower dynamic impedance. The automotive variant ensures compliance with stringent industry reliability standards for vehicle electronics.
Replacement Considerations
Direct substitutes include TL431AQDBVR for cut-tape packaging or TL431AQDBZT for the 3-pin SOT-23 package variant. Verify pinout compatibility and electrical specifications match before substitution.
