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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 2.2% 8TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- 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-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：8-TSSOP
- Grade：-
- Qualification：-
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Overview
The TL431CPWR is a three-terminal adjustable shunt regulator manufactured by Texas Instruments. It provides a reference voltage adjustable from 2.495 V to 36 V using two external resistors. The device features low output noise and a typical dynamic impedance of 0.2 Ω. It operates within an industrial temperature range of 0°C to +70°C. The component is housed in a small SOT-23 surface-mount package, suitable for space-constrained designs.
Feature Summary
- Adjustable output voltage ranging from the internal reference level up to 36 V via external resistor divider
- Low output noise characteristics with minimal dynamic impedance for stable regulation
- Designed for operation across standard industrial temperature environments
Applications
- Precision voltage references in power supply circuits
- Programmable linear regulators
- Comparator applications requiring stable threshold levels
Procurement Notes
Verify the specific suffix against official documentation to confirm package type and temperature grade. Ensure the ordering code matches the required SOT-23 configuration and industrial rating. Cross-reference the manufacturer's latest datasheet for any packaging or material changes before finalizing procurement specifications.
Selection Notes
Select this component when a compact surface-mount solution is required for adjustable shunt regulation. Confirm that the operating environment remains within the specified industrial temperature limits. Evaluate the external resistor network requirements to ensure the desired output voltage falls within the valid adjustment range defined by the datasheet.
Part Context
This part belongs to the widely used TL431 family of programmable shunt regulators. It serves as a cost-effective alternative to discrete Zener diodes, offering superior stability and lower noise. The family supports various packages including TO-92 and SOIC, with this specific variant optimized for automated surface-mount assembly processes.
Replacement Considerations
Compatible substitutes include other TL431 variants from Texas Instruments such as TL431AIDBZR or TL431CDR-J, provided they match the required accuracy class and thermal performance specifications.
