TL431AILP

Description：IC VREF SHUNT ADJ 1% TO92-3
Series：-
Mfr：Microchip Technology
Package：Strip

SKU:31b11d4a017f Category: Voltage Reference Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 1% TO92-3
Series：-
Mfr：Microchip Technology
Package：Strip
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：36 V
Current - Output：100 mA
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 Long Body
Supplier Device Package：TO-92 (TO-226)
Grade：-
Qualification：-

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TL431AILP

Overview

The TL431AILP is a precision programmable three-terminal shunt voltage regulator manufactured by Microsemi. It features an initial voltage reference accuracy of 1% and supports an adjustable output voltage range from 2.5V to 36V using two external resistors. The device operates with a cathode current capability between 1mA and 100mA, maintaining a typical dynamic impedance below 200mΩ. Designed for industrial applications, it functions within an ambient temperature range of -40°C to 85°C and utilizes a plastic TO-92 three-pin package.

Feature Summary

Precision adjustable three-terminal shunt regulation architecture
Low output impedance for improved load regulation performance
Direct pin-to-pin replacement compatibility with industry standard TL431 devices

Applications

Feedback path control in switching power supplies
Overvoltage protection (OVP) crowbar circuits
Reference source for A/D and D/A converters
Voltage monitoring systems

Procurement Notes

Verify the manufacturer origin carefully, as this component was produced by Microsemi Integrated Products Division. Confirm that the specific ordering suffix aligns with the required tolerance grade and operating temperature range specifications. Ensure the procurement channel provides valid documentation regarding the obsolete status and suitability for new designs.

Selection Notes

Select this component when a low-cost, high-accuracy shunt regulator is required for industrial temperature environments. The TO-92 package facilitates through-hole mounting for prototyping or specific mechanical constraints. Evaluate stability boundary conditions regarding load capacitance to prevent oscillation during operation.

Part Context

This part belongs to the TL431 series of precision programmable references. It serves as a direct replacement for standard TL431 and TL1431 components while offering enhanced initial voltage reference accuracy. The device integrates a 2.5V bandgap reference core to enable precise voltage setting across a wide operational range.