TL431BIDBZR Description

The TL431BIDBZR devices are three-terminal adjustable shunt regulators with specified thermal stability over a wide range of temperatures in the automotive, commercial, and military markets. With two external resistors, the output voltage can be tuned to any value between Vref (about 2.5 V) and 36 V. The output impedance of these devices is typically 0.2. In many applications, such as onboard regulation, adjustable power supplies, and switching power supplies, active output circuitry provides a very sharp turn-on characteristic, making these devices good alternatives for Zener diodes.

TL431BIDBZR Features

? Vref to 36 V adjustable output voltage

? Temperature range: 40°C to 125°C

? Drift in Typical Temperature (TL43xB)

TL431BIDBZR Applications

? Voltage and Current Referencing Can Be Adjusted

? In Flyback SMPSs, Secondary Side Regulation

? Replacement of the Zener

? Voltage Checking

? Integrated Reference Comparator