TL431CL5T

Product Overview

TL431CL5T from STMicroelectronics is a shunt voltage reference integrated circuit for reference functions in power management systems. The device has an adjustable output type and a 2.495 V output reference value, with a maximum output voltage of 36 V. Its output current is 100 mA, and the cathode current is 1 mA. The reference tolerance is ±2.21%, and the operating temperature range is 0°C to 70°C. The part uses a SOT-23-5 package.

Key Features

• Shunt reference type with adjustable output type
• 2.495 V output reference value
• Maximum output voltage of 36 V
• 100 mA output current
• 1 mA cathode current
• ±2.21% reference tolerance
• Operating temperature range of 0°C to 70°C
• SOT-23-5 package

Applications

• Adjustable reference in power supply feedback circuits
• Voltage threshold setting in analog control circuits
• Reference voltage in measurement circuits

Design & Procurement Notes

Designers using TL431CL5T should confirm that the circuit maintains the 1 mA cathode current and that the adjustable output remains within the 2.495 V reference value and 36 V maximum. The 100 mA output current should be considered when selecting the shunt operating point, load conditions, and design margin. The ±2.21% reference tolerance should be accounted for in output voltage accuracy and feedback error budgets. The 0°C to 70°C operating temperature range should be considered for ambient thermal conditions. Because the part uses a SOT-23-5 package, layout and footprint compatibility should be reviewed.