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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.4% 8SOIC
- Series：-
- Mfr：Microsemi Corporation
- Package：Tube
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The LX6431BCDM is a precision adjustable three-terminal shunt voltage regulator manufactured by Microsemi Corporation. It operates within an output voltage range of 2.5V to 36V and features a tolerance of ±0.4%. The device supports an output current of 100 mA and has a cathode current of 600 µA. It is housed in an 8-SOIC package with a width of 3.90mm. The component functions as a reference IC suitable for surface mount installation.
Feature Summary
- Pin-to-pin compatible with industry standard TL431
- Precision adjustable regulation via two external resistors
- High accuracy with 0.4% initial tolerance
Applications
- Power supply feedback loops
- Comparator circuits
- Battery chargers
Procurement Notes
Verify the specific suffix BCDM against official Microchip documentation to confirm the 0.4% tolerance grade, as other suffixes may indicate different accuracy levels. Confirm RoHS compliance status through the manufacturer's latest environmental declarations. Check for obsolescence notices or PCN announcements regarding this discontinued family member before finalizing procurement plans.
Selection Notes
Select this component when high-precision voltage referencing is required in space-constrained designs utilizing SOIC packages. Ensure the application voltage does not exceed the 36V maximum rating. Consider thermal management requirements if operating near the upper limits of the specified temperature range. Verify resistor selection for the desired output voltage setting.
Part Context
The LX6431 series belongs to Microsemi's portfolio of precision analog components, now managed under Microchip Technology following acquisition. This series serves as a high-performance alternative to legacy shunt regulators, offering improved accuracy and stability. The LX6431BCDM specifically denotes the version with tighter tolerance specifications compared to standard variants.
Replacement Considerations
Direct pin-compatible substitutes include the TL431 family from various manufacturers. For equivalent performance, consider the LX6431ACDM or LX6431ADM depending on required tolerance. Verify that any replacement maintains the 8-SOIC footprint and electrical characteristics.
