TL431AIPG

Overview

The TL431AIPG is a programmable precision shunt voltage reference manufactured by onsemi. It operates within an input voltage range of 2.5V to 36V and supports cathode currents from 1mA to 100mA. The device features an initial accuracy of 1% and a temperature coefficient of 50ppm/°C. It is housed in a TO-92-3 (TO-226) through-hole package and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Provides adjustable shunt regulation with high precision for stable voltage references
• Offers low output impedance characteristics suitable for feedback loop control
• Ensures thermal stability with a defined temperature coefficient across the operating range

Applications

• Secondary regulators in switch-mode power supplies
• Programmable precision references in AC/DC adapters
• Voltage monitoring and control circuits

Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified suppliers. Confirm RoHS compliance status via official material declarations. Check current production lifecycle status, as availability may vary. Ensure packaging type matches design requirements for assembly processes. Validate datasheet revisions against specific application needs before procurement.

Selection Notes

Select this component when a through-hole adjustable reference is required. The 1% accuracy suits applications needing tighter tolerance than standard variants. Consider the TO-92 package for manual assembly or legacy board designs. Evaluate current limits against load requirements to ensure operation within the 1mA to 100mA range. Compare thermal performance against ambient conditions.

Part Context

This part belongs to the TL431 family of programmable shunt references. It shares functional similarities with other TL431 variants but differs in package style and specific accuracy grades. The IPG suffix denotes the TO-92-3 through-hole configuration, distinguishing it from surface-mount options like DR or DG packages within the same product line.

Replacement Considerations

Direct substitutes include TL431AILPG and LM431BIZX. Verify pinout compatibility and electrical parameter alignment before substitution. Cross-reference manufacturer specifications to ensure equivalent performance in critical applications.