TL431BILP

Description：IC VREF SHUNT ADJ 0.4% TO92-3
Series：-
Mfr：Microsemi Corporation
Package：Tape & Box (TB)

SKU:181c1a6761f1 Category: Voltage Reference Brand: Microsemi Corporation

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 0.4% TO92-3
Series：-
Mfr：Microsemi Corporation
Package：Tape & Box (TB)
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-226-2, TO-92-2 (TO-226AC)
Supplier Device Package：TO-92-3
Grade：-
Qualification：-

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TL431BILP

Overview

The TL431BILP is a precision programmable three-terminal shunt voltage regulator manufactured by Microsemi Corporation. It features an initial voltage reference accuracy of 0.4% and operates within an ambient temperature range of -40°C to 85°C. The output voltage is adjustable from 2.5V to 36V using two external resistors. Key electrical characteristics include a typical output dynamic impedance of less than 100mΩ, a sink current capability ranging from 1mA to 100mA, and a typical equivalent full-range temperature coefficient of 30ppm/°C.

Feature Summary

Offers high-precision voltage regulation with an initial tolerance of 0.4% for the B-grade device.
Provides low output noise and improved load regulation through low dynamic output impedance.
Features direct pin-to-pin compatibility with industry standard TL431 and TL1431 devices.

Applications

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

Procurement Notes

Verify component authenticity as this specific part number is classified as obsolete by the manufacturer. Confirm that the TO-92 plastic package matches the required form factor for existing board layouts. Ensure design reviews account for the discontinued status when planning long-term production runs or maintenance cycles.

Selection Notes

Select this component when a 0.4% initial voltage accuracy is required alongside an extended industrial temperature range of -40°C to 85°C. The TO-92 package is suitable for through-hole mounting applications where surface-mount options are not feasible. Verify that the cathode current requirements fall within the 1mA to 100mA operational window for optimal performance.

Part Context

This device belongs to the TL431 series of precision adjustable references produced by Microsemi's Integrated Products Division. The series includes variants with different tolerances and temperature grades. The TL431BILP specifically denotes the B-grade (0.4%) version packaged in the LP (TO-92) format designed for through-hole integration.

Replacement Considerations

The datasheet specifies direct pin-to-pin replacement for industry standard TL431 and TL1431 devices. Verify that substitute components match the 0.4% tolerance and -40°C to 85°C temperature range specifications.