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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SOT23-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- 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 TL431BQDBVRG4 is an automotive-grade adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a reference voltage range of 2.495 V to 36 V and supports a maximum cathode current of 100 mA with a minimum operating current of 700 µA. The device features an initial accuracy of ±0.5% and a maximum temperature coefficient of 92 ppm/°C. It is housed in a surface-mount SOT-23-5 package and is rated for an extended industrial temperature range from -40°C to +125°C, ensuring reliable performance in demanding automotive environments.
Feature Summary
- Automotive qualification compliant for high-reliability vehicle applications
- High precision voltage regulation with ±0.5% initial accuracy
- Wide operational temperature range suitable for harsh environments
Applications
- Automotive power supply regulation circuits
- Precision voltage references in vehicle electronics
- Battery management system monitoring
Procurement Notes
Verify the specific suffix G4 indicates lead-free and RoHS compliance status against the latest manufacturer datasheet. Confirm the SOT-23-5 package variant matches the target PCB footprint design requirements. Ensure the automotive grade designation aligns with the specific reliability standards required for the intended end-use application environment.
Selection Notes
Select this component when automotive reliability and tight voltage tolerance are critical. The SOT-23-5 package offers space efficiency compared to larger alternatives. Consider the -40°C to 125°C rating for under-hood or exterior mounting locations where standard commercial grades may fail due to thermal stress.
Part Context
This part belongs to the TL431 family of programmable shunt regulators, widely used as voltage references and error amplifiers. The BQ suffix denotes automotive qualification with enhanced stability, while the DBVRG4 suffix specifies the SOT-23-5 tape-and-reel packaging format designed for automated surface-mount assembly processes.
Replacement Considerations
Direct substitutes include other automotive-grade TL431 variants in SOT-23-5 packages such as TL431BQDBVTG4. Verify pinout compatibility and thermal characteristics before substitution.
