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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1% SOT23-3
- 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：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The TL431AQDBZTG4 is an automotive-grade adjustable precision shunt regulator manufactured by Texas Instruments. It provides a reference voltage range from 2.495V to 36V with an initial accuracy of 1%. The device operates within a temperature range of -40°C to +125°C and supports a maximum output current of 100mA. It features a maximum input voltage of 37V and a typical temperature coefficient of 92ppm/°C. Packaged in a surface-mount SOT-23-3 format, it is supplied in tape and reel for automated assembly.
Feature Summary
- Automotive qualification ensuring reliability for vehicle electronics applications
- Adjustable output voltage capability spanning 2.495V to 36V
- High precision performance with 1% initial accuracy tolerance
Applications
- Automotive power supply regulation circuits
- Precision voltage reference sources in harsh environments
- Feedback control loops in DC-DC converters
Procurement Notes
Verify the specific suffix 'G4' confirms RoHS compliance and lead-free status as per Texas Instruments documentation. Ensure the order specifies the tape and reel packaging variant rather than cut tape or tube formats. Confirm the automotive grade designation matches the required AEC-Q100 standards for the target application environment.
Selection Notes
Select this component when automotive reliability and high precision are required in a compact SOT-23 package. The wide operating temperature range suits under-hood or exterior automotive modules. Compare against non-automotive variants if environmental stress testing is not mandated for the specific design.
Part Context
This part belongs to the TL431 family of adjustable shunt regulators, widely used for voltage referencing and feedback control. The 'AQ' designation indicates automotive qualification and 1% accuracy, while 'DBZ' denotes the SOT-23-3 package. The 'TG4' suffix typically signifies Green/RoHS-compliant manufacturing processes.
Replacement Considerations
Direct substitutes include TL431AQDBZT (non-reel) and TL431BCDBZTG4 (0.5% accuracy, commercial temp). Cross-manufacturer equivalents require verification of pinout compatibility and electrical parameter alignment.
