TL431BVDMR2G

Overview

The TL431BVDMR2G is a three-terminal programmable shunt regulator diode from onsemi, utilizing the Micro8 package (DM suffix). It operates as a low temperature coefficient zener reference, programmable from Vref to 36 V using two external resistors. The device features a typical voltage reference tolerance of ±0.4% at 25 °C and supports a cathode current range of 1.0 mA to 100 mA. It exhibits a typical dynamic impedance of 0.22 Ω and an equivalent full-range temperature coefficient of 50 ppm/°C. The component is qualified for automotive applications under AEC-Q100 standards.

Feature Summary

• Programmable output voltage capability up to 36 V
• High precision with ±0.4% initial accuracy at 25 °C
• Automotive qualification compliant with AEC-Q100 standards
• Low dynamic output impedance for stable regulation

Applications

• Digital voltmeters
• Power supply feedback control
• Op amp circuitry
• Constant current sources

Procurement Notes

Verify the specific ordering suffix 'DM' corresponds to the Micro8 package configuration required for your design. Confirm that the NCV or SCV prefix requirements are met if unique site control changes are necessary for your application. Ensure compatibility with the specified operating temperature range of -40 °C to +125 °C during component selection.

Selection Notes

Select this component when high precision voltage referencing is required in space-constrained designs due to its compact Micro8 footprint. Consider the wide operating temperature range suitable for harsh environments. Evaluate stability boundary conditions regarding load capacitance and cathode current to ensure loop stability in switching converter or linear regulator topologies.

Part Context

This part belongs to the TL431A, B series family of programmable precision references manufactured by onsemi. The DM suffix indicates the Micro8 package variant, which is an internally modified SOIC-8 structure designed to increase power dissipation capability when mounted on a printed circuit board. It shares functional characteristics with other TL431 variants but differs in physical packaging and thermal performance.

Replacement Considerations

TL431BVDR2G

FAQ

What is the maximum cathode-to-anode voltage rating?

The maximum cathode-to-anode voltage (VKA) rating is 37 V.

Is the TL431BVDMR2G suitable for automotive applications?

Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other applications requiring unique site and control change requirements.