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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% 8SO
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.209", 5.30mm Width)
- Supplier Device Package：8-SO
- Grade：-
- Qualification：-
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Overview
The TL431BCPSR is an adjustable precision shunt regulator manufactured by Texas Instruments, housed in an 8-pin SOIC surface-mount package. It operates with a reference voltage range of 2.495 V to 36 V and maintains 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 within a wide operating temperature range from -40°C to +125°C, ensuring stable performance in demanding electronic environments.
Feature Summary
- Provides precise programmable reference voltage functionality for circuit regulation
- Ensures thermal stability across extended industrial temperature ranges
- Delivers high accuracy with minimal drift over time and temperature changes
Applications
- Precision voltage regulation in power supply circuits
- Reference voltage generation for analog-to-digital converters
- Over-voltage protection monitoring systems
Procurement Notes
Verify the specific suffix 'PSR' indicates the SOIC-8 tape and reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the specified 100 mA maximum cathode current limit to prevent device damage during operation.
Selection Notes
Select this component when high accuracy and wide temperature tolerance are required in space-constrained designs. The SOIC-8 package facilitates automated surface-mount assembly processes. Consider the ±0.5% initial accuracy specification for applications requiring tight voltage control without external trimming components.
Part Context
This part belongs to the TL431 family of three-terminal adjustable shunt regulators. These devices serve as versatile alternatives to Zener diodes, offering superior performance characteristics including lower dynamic impedance and better temperature stability. The family is widely utilized in general-purpose power management and signal conditioning applications.
Replacement Considerations
Compatible substitutes include the TL431ACDR and TL431BQDR, which share similar electrical specifications and pin configurations. Verify package dimensions and thermal characteristics when transitioning between different manufacturers or series variants.
