TL431BVPG

Overview

The TL431BVPG is a three-terminal programmable shunt regulator diode from onsemi, belonging to the TL431B series. It operates as a low temperature coefficient zener with an output voltage programmable from Vref (2.495 V typical) to 36 V using two external resistors. The device supports a cathode current range of 1.0 mA to 100 mA and features a typical dynamic impedance of 0.22 Ω. It offers a voltage reference tolerance of ±0.4% at 25 °C and an equivalent full-range temperature coefficient of 50 ppm/°C. The component is housed in a PDIP-8 package and is rated for an operating ambient temperature range of −40 °C to +125 °C.

Feature Summary

• Programmable output voltage capability extending up to 36 V via external resistor network
• High precision voltage reference with ±0.4% tolerance at 25 °C
• Extended high-temperature operation suitable for demanding environments
• Low dynamic output impedance for stable regulation performance

Applications

• Digital voltmeters requiring stable reference voltages
• Power supply feedback control circuits
• Op amp circuitry serving as precision references
• Shunt regulator implementations in linear or switching topologies

Procurement Notes

Verify that the specific ordering suffix PG corresponds to the PDIP-8 plastic package configuration required for your design. Confirm that the BV suffix aligns with the necessary extended temperature rating of −40 °C to +125 °C for your application environment. Ensure compatibility with RoHS compliance standards if applicable to your manufacturing process. Cross-reference the datasheet revision date to confirm the most current electrical characteristics are being utilized for final validation.

Selection Notes

Select the TL431BVPG when a precise, adjustable shunt reference is needed within a wide temperature range. The B series variant provides tighter initial accuracy compared to standard I series devices. Consider the PDIP-8 package for through-hole assembly requirements where higher power dissipation capabilities relative to smaller packages may be beneficial. Evaluate the thermal resistance characteristics against your expected power dissipation levels to ensure reliable long-term operation under maximum load conditions.

Part Context

This component is part of the broader TL431 family of programmable precision references manufactured by onsemi. It shares core architectural similarities with other variants like the TL431AIPG but differs in tolerance specifications and operating temperature ranges. The BV designation specifically indicates the B-series accuracy combined with the extended industrial temperature grade, distinguishing it from standard commercial grade options within the same product line.

Replacement Considerations

TL431BIDR2G