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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.4% MICRO8
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),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-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-MSOP
- Grade：-
- Qualification：-
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Overview
The TL431BCDMR2 is a programmable shunt regulator from onsemi, part of the TL431 family. It functions as a precision voltage reference and error amplifier in switching power supplies and linear regulators. The device offers adjustable output voltages ranging from 2.5 V to 36 V with high thermal stability. Key electrical characteristics include low dynamic impedance and tight initial accuracy specifications. It is designed for robust operation across industrial temperature ranges, providing reliable regulation for feedback loops in various power conversion topologies.
Feature Summary
- Provides precise programmable voltage reference functionality
- Features low dynamic impedance for stable loop control
- Ensures high thermal stability across operating temperatures
Applications
- Switching power supply feedback loops
- Linear regulator error amplifiers
- Precision voltage references
Procurement Notes
Verify the specific suffix 'MR2' against the official datasheet to confirm tape-and-reel packaging and exact grade. Ensure the component meets required automotive or industrial qualification standards if applicable. Cross-reference pinout compatibility with existing PCB layouts before procurement.
Selection Notes
Select this component when a low-cost, high-accuracy shunt regulator is needed for voltage monitoring or feedback. Consider the package type and thermal performance requirements. Evaluate the need for specific accuracy grades versus standard versions based on circuit tolerance requirements.
Part Context
This component belongs to the widely used TL431 family of programmable shunt regulators. These devices are industry-standard solutions for voltage referencing and error amplification. The family is known for its versatility in replacing Zener diodes in many analog and power management applications.
Replacement Considerations
Compatible replacements include other TL431 variants such as TL431AIDBVR or TL431BIDBVR, provided pinouts and accuracy grades match. Verify that substitute parts meet the same thermal and electrical specifications.
