STMicroelectronics TL1431AIYDT, Automotive AEC-Q100 adjustable shunt voltage reference, ±0.25% tolerance, 100 mA output, 2.5V to 36V, 8-SOIC, -40°C to 125°C.
| Parameter | Value |
|---|---|
| Series | Automotive, AEC-Q100 |
| Output type | Adjustable |
| Mounting | Surface Mount |
| Reference type | Shunt |
| Voltage - output | 36 V |
| Voltage - output (Min (Fixed)) | 2.5V |
| Output current | 100 mA |
| Current - cathode | 700 µA |
| Operating temperature | -40°C ~ 125°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Tolerance | ±0.25% |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Temperature coefficient | 100ppm/°C |
It delivers a 2.5 V to 36 V output with ±0.25% tolerance, sinking up to 100 mA through the cathode.
The ±0.25% tolerance is the tightest grade in the TL1431 family. The 100 mA output current drives optocoupler LEDs in isolated feedback loops.
The TL1431AIYDT is a higher-precision variant of the TL431 family. Both are adjustable shunt references with the same pinout and 2.5 V to 36 V range, but the TL1431AIYDT offers ±0.25% tolerance and AEC-Q100 qualification, while standard TL431 parts are typically ±2% or ±1% and commercial-grade.
Yes, it is qualified to AEC-Q100, the automotive reliability standard, and operates from -40°C to 125°C.