STMicroelectronics TL431 and TL432
Adjustable micropower shunt voltage reference
The TL431 and TL432 are adjustable shunt voltage references with guaranteed temperature stability over the entire operating temperature range. The device temperature range is extended for the automotive version from -40 °C up to +125 °C. The output voltage can be set to any value between 2.5 and 36 V with two external resistors. The TL431 and TL432 operate with a wide current range from 1 to 100 mA with a typical dynamic impedance of 0.22 Ω.
Key features
- Adjustable output voltage range from 2.5 to 36V
- 4µA max reference input current at Tamb = 25°C
- 0.5ohm dynamic impedance
- 2.52V reference input voltage at Tamb = 25°C
- 1000nA max
- 0.7mA max value of minimum cathode current for regulation
- 1% accuracy
- 3 lead SOT23 package
- Temperature range from -40°C to 105°C
Applications
- Power supply
- Industrial
- Automotive
Available tools
Isobuck-boost converter with four selectable dual voltages
The STEVAL-A6986IV3 is an evaluation board based on ST A6986I. The A6986I is designed for isolated applications and normally implements an iso-buck architecture.
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