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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.4% 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The TL1431QDRQ1 is a precision adjustable shunt voltage reference integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 36 V and delivers an initial accuracy of ±0.4%. The device supports a maximum cathode current of 100 mA and maintains a temperature coefficient of 114 PPM/°C. Designed for automotive applications, it holds AEC-Q100 qualification and functions reliably across an extended temperature range from -40°C to +125°C. The component is housed in an 8-SOIC surface-mount package.
Feature Summary
- AEC-Q100 qualified for automotive reliability standards
- Precision adjustable shunt regulation with high initial accuracy
- Wide operating voltage range up to 36 V
- Extended industrial and automotive temperature capability
Applications
- Automotive power management systems
- Precision voltage monitoring circuits
- Battery management system references
- Industrial control voltage regulation
Procurement Notes
Verify the specific suffix QDRQ1 to confirm AEC-Q100 automotive qualification and SOIC-8 packaging. Ensure compatibility with your design's thermal requirements and voltage specifications. Cross-reference official datasheets for pinout configurations and electrical limits before integration. Confirm RoHS compliance status through manufacturer documentation.
Selection Notes
Select this component when automotive-grade reliability and precise voltage referencing are required. The adjustable output allows flexibility in setting reference levels within the specified range. Consider the 100 mA sink capability for driving loads directly or biasing other components. Evaluate the thermal performance within the 8-SOIC package for your specific PCB layout constraints.
Part Context
This part belongs to the TL1431 family of shunt voltage references. It serves as a robust alternative to Zener diodes in precision applications. The Q1 suffix denotes automotive qualification, distinguishing it from commercial variants. It complements other Texas Instruments power management solutions in complex electronic designs.
Replacement Considerations
Compatible substitutes include TL1431QD and TL1431QDRG4Q1. Verify pinout compatibility and electrical parameter alignment before substitution. Ensure the replacement meets the same AEC-Q100 requirements if automotive use is intended.
