The TL431 is a three-terminal programmable shunt regulator that implements Zener-like references with low temperature coefficients. Its output can be programmed from the internally set reference of ...

The TL431 has been around for nearly 50 years. During those decades, while primarily marketed as a precision adjustable shunt regulator, this legacy device also found its way into alternative ...

You either put the LEDs in series (which raises the overall voltage drop, ... A current source with TL431, a BC337 and 2 resistors, and a shunt regulator with a TL431 and a BD140 and 3 Resistors.

Inside the TL431, [Ken] discovers that transistors aren’t made up of the three layer NPN or PNP sandwich we’ve come to know and love. In fact, the base isn’t even in the middle.

The TL431 is a well-known ... the dc gain will be provided by the TL431. It can be wired in a shunt regulator configuration ... Keeping the 8.2-kΩ resistor in series with the TL431 and a ...