TL431BCLPRE

$0.16

Description：IC VREF SHUNT ADJ 0.4% TO92-3
Series：-
Mfr：onsemi
Package：Tape & Reel (TR)

SKU:cd0abb99f0c0 Category: Voltage Reference Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 0.4% TO92-3
Series：-
Mfr：onsemi
Package：Tape & Reel (TR)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.495V
Voltage - Output (Max)：36 V
Current - Output：100 mA
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
Supplier Device Package：TO-92-3
Grade：-
Qualification：-

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TL431BCLPRE

Overview

The TL431BCLPRE is a three-terminal programmable shunt regulator diode from onsemi, operating within the TL431 series. It functions as a low temperature coefficient Zener reference, programmable from Vref to 36 V using two external resistors. The device supports a cathode current range of 1.0 mA to 100 mA with a typical dynamic impedance of 0.22 Ω. It features a voltage reference tolerance of ±0.4% at 25°C and an equivalent full-range temperature coefficient of 50 ppm/°C. Packaged in TO-92 (TO-226), it operates over a commercial temperature range of 0°C to +70°C.

Feature Summary

Programmable output voltage adjustable from Vref to 36 V via external resistors
High precision voltage reference with ±0.4% tolerance at 25°C
Low dynamic output impedance for stable regulation performance
Temperature compensated operation across the rated ambient range

Applications

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

Procurement Notes

Verify the specific suffix 'E' against official documentation to confirm tape and reel packaging requirements for the TO-92 package. Confirm the commercial temperature range (0°C to +70°C) aligns with application needs. Check RoHS compliance status and ensure lead-free marking matches ordering specifications. Validate pinout compatibility with existing PCB footprints before integration.

Selection Notes

Select this component when a precise, adjustable shunt reference is required within the commercial temperature range. The ±0.4% tolerance suits applications demanding higher accuracy than standard Zener diodes. Ensure the design maintains cathode current between 1.0 mA and 100 mA for optimal regulation. Consider stability boundary conditions if load capacitance is present in the circuit design.

Part Context

This part belongs to the TL431, A, B series of programmable precision references by onsemi. These monolithic ICs serve as versatile replacements for traditional Zener diodes in various analog and power management circuits. The series includes variants with different tolerances and temperature ranges, such as the industrial (-40°C to +85°C) and automotive-grade NCV prefixes.