TL431ACDT

Product Overview

The TL431ACDT from STMicroelectronics is a surface-mount shunt voltage reference in an 8-SOIC package. It provides an adjustable reference output with a minimum/fixed voltage of 2.495 V and a maximum output voltage of 36 V. The device has a ±1% output tolerance, a 100 mA output current specification, and a 600 µA cathode current value. Its ambient operating temperature range is 0°C to 70°C.

Key Features

• Shunt voltage reference topology with adjustable output
• 2.495 V minimum/fixed output voltage and 36 V maximum output voltage
• ±1% output tolerance
• 100 mA output current and 600 µA cathode current
• 8-SOIC surface-mount package with 0.154 in, 3.90 mm width
• 0°C to 70°C ambient operating temperature range

Applications

• providing a defined reference node in adjustable power supply circuits
• setting reference thresholds in feedback networks for regulated converters
• generating reference levels for measurement and control circuits
• establishing reference points in analog signal conditioning circuits

Design & Procurement Notes

When selecting the TL431ACDT for a design, account for the 8-SOIC surface-mount footprint and the 0°C to 70°C ambient operating range. The adjustable shunt configuration allows the reference output to be set within the 2.495 V to 36 V range, while the ±1% tolerance, 100 mA output current, and 600 µA cathode current should be considered in resistor selection, circuit biasing, and output setting. Procurement should match the exact STMicroelectronics part number TL431ACDT to retain the package and electrical characteristics.