Key facts
- Brand
- STMicroelectronics
- Model
- TL431
- Industry
- Industrial
- Documents
- 4
- Languages
- EN
- Last added
- 2012-08-10
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STMicroelectronics TL431/TL432 Programmable Voltage Reference Datasheet
The TL431 and TL432 are programmable shunt voltage references with guaranteed temperature stability over the entire operating temperature range. The output voltage can be set to any value between 2.5 and 36 V with two external resistors. These devices operate with a wide current range from 1 to 100 mA with a typical dynamic impedance of 0.22 Ω.
Read onlineSTMicroelectronics TL431 specifications
| Adjustable output voltage | 2.5 to 36 V |
|---|---|
| Sink current capability | 1 to 100 mA |
| Typical output impedance | 0.22 Ω |
| Voltage precision | 1% and 2% |
| Automotive temperature range | -40 °C to +125 °C |
Source: STMicroelectronics TL431/TL432 Programmable Voltage Reference Datasheet
All STMicroelectronics TL431 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the adjustable output voltage range for the TL431 and TL432?
The output voltage can be set to any value between 2.5 and 36 V with two external resistors.
From: STMicroelectronics TL431/TL432 Programmable Voltage Reference Datasheet
What is the typical dynamic impedance of the device?
The device has a typical dynamic impedance of 0.22 Ω.
From: STMicroelectronics TL431/TL432 Programmable Voltage Reference Datasheet
How is the relative error of the global schematic calculated?
The relative error is calculated using a final expression derived from the partial derivatives of the output voltage with respect to the reference voltage and the resistor values.
From: ST APPLICATION NOTE AN1761 TL431 Accuracy of shunt voltage references in programmable mode
What relative error does a TL431A have when programmed at 5V with 2% precision resistors?
The calculated 5V output precision is 4.3%.
From: ST APPLICATION NOTE AN1761 TL431 Accuracy of shunt voltage references in programmable mode
What is the adjustable output voltage range of the TL431?
The TL431 can be set to any voltage between 2.5 V and 36 V.
From: STMicroelectronics TL431 Programmable Voltage Reference Datasheet
What sink current capability does the TL431 provide?
It can sink current from 1 mA up to 100 mA.
From: STMicroelectronics TL431 Programmable Voltage Reference Datasheet