TL1431 is a programmable shunt voltage reference with guaranteed temperature stability over the entire temperature range of operation. The output voltage may be set to any value between 2.5V and 36V with two external resistors. The TL1431 operates with a wide current range from 1 to 100mA with a typical dynamic impedance of 0.2Ω.
The TL1431 programmable voltage reference provides an adjustable output voltage from 2.5 V to 36 V. It is available in TO‑92 plastic, bulk, tape‑and‑reel, and small‑outline packages and can sink currents between 1 mA and 100 mA.
Electrical characteristics include a typical reference input voltage of 2.500 V, a temperature coefficient of ±90 ppm/°C, a typical output impedance of 0.2 %, and an off‑state cathode current of about 180 nA. Mechanical data for the various package styles are also listed.
| Adjustable output voltage | 2.5 V to 36 V |
|---|---|
| Sink current capability | 1 mA to 100 mA |
| Typical output impedance | 0.2 % |
| Temperature coefficient of reference voltage | +90 ppm/°C |
The TL1431 can be set to any output voltage between 2.5 V and 36 V.
It can sink currents from 1 mA up to 100 mA.
The temperature coefficient is ±90 ppm per degree Celsius.