TL431AIDBVRG4

Overview

The TL431AIDBVRG4 is an adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within a cathode voltage range of 2.5 V to 36 V and provides an initial accuracy of ±1%. The device features a low temperature coefficient of 92 ppm/°C, ensuring stable performance across varying thermal conditions. Designed for surface-mount applications, it utilizes the SOT-23-5 package topology. The component supports a maximum cathode current of 100 mA and functions reliably within an operating temperature range from -40°C to +125°C.

Feature Summary

• Provides precise adjustable voltage regulation with high initial accuracy
• Maintains stability through a low temperature coefficient specification
• Supports wide input voltage ranges up to 36 V
• Enables compact circuit designs via small surface-mount packaging

Applications

• Precision power supply regulation circuits
• Voltage reference sources for analog-to-digital converters
• Battery management system monitoring
• Industrial control loop feedback networks

Procurement Notes

Verify the specific suffix 'RG4' against official manufacturer documentation to confirm tape-and-reel packaging specifications and environmental compliance status. Ensure that the ordering information matches the exact part number variant required for your production line. Cross-reference datasheet revisions to confirm pinout compatibility and electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring tight voltage tolerance and minimal drift over temperature variations. The SOT-23-5 form factor is suitable for space-constrained layouts. Evaluate the 100 mA current capability against load requirements to ensure adequate headroom. Confirm that the operating temperature range aligns with the environmental conditions of the target application environment.

Part Context

This device belongs to the TL431 family of programmable shunt regulators widely used in power electronics. It serves as a cost-effective alternative to fixed voltage references while offering adjustable output capabilities. The series is established for providing reliable reference voltages in switching power supplies and linear regulator feedback loops across consumer and industrial sectors.

Replacement Considerations

Compatible substitutes include the TL431AIDBVT and TL431AIDBZRG4. Verify pinout compatibility and electrical parameter alignment before substitution. Ensure that any replacement part meets the same thermal and accuracy specifications required by the original design.