TLV431BIDCKR

Overview

The TLV431BIDCKR is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates with a reference voltage range of 1.24 V to 6 V and supports a maximum input voltage of 7 V. The device provides an initial accuracy of ±0.5% and maintains a temperature coefficient of 138 ppm/°C. It functions within a cathode current range of 100 µA to 15 mA, with a maximum output current capability of 15 mA. The component is designed for surface-mount installation in a six-pin SC-70 package, ensuring reliable performance across an operating temperature range from -40°C to +125°C.

Feature Summary

• Provides precise voltage regulation through an adjustable shunt reference topology suitable for low-voltage applications.
• Delivers high initial accuracy of ±0.5% to ensure stable reference voltages without extensive external calibration.
• Operates effectively over a wide industrial temperature range, maintaining stability from -40°C to +125°C.

Applications

• Precision voltage references in portable electronic devices
• Feedback control loops in DC-DC converters
• Battery-powered instrumentation requiring stable reference points

Procurement Notes

Verify the specific suffix 'CKR' confirms the SC-70-6 tape and reel packaging format required for automated assembly processes. Confirm that the 'B' grade designation aligns with the necessary ±0.5% accuracy specifications for the target design. Ensure compatibility with RoHS3 compliance standards if environmental regulations apply to the final product manufacturing location.

Selection Notes

Select this component when a compact surface-mount solution is required for low-voltage precision regulation. The SC-70-6 package offers space efficiency compared to larger alternatives. Consider the 15 mA current limit when designing load circuits; higher current demands may require alternative packages or parallel configurations. Verify that the 7 V maximum input voltage constraint fits within the system's supply rails.

Part Context

This device belongs to the TLV431 family of low-voltage adjustable shunt regulators. It serves as a modern replacement for traditional Zener diodes in feedback networks. The family emphasizes small form factors and improved thermal stability, making it suitable for space-constrained consumer electronics and industrial control systems requiring reliable voltage referencing.

Replacement Considerations

Compatible substitutes include the TLV431ACDKR and TLV431BCDKR, which share identical pinouts and packaging but differ in accuracy grades. The TLVH431 series offers similar functionality but may have different electrical characteristics regarding input voltage ranges and temperature coefficients.