The ST431AC from STMicroelectronics is a versatile and reliable adjustable shunt voltage reference, designed to offer a precise voltage calibration for a vast array of electronic applications. This device is highly acclaimed for its stability and accuracy over a wide range of operating conditions, including temperature variations and the passage of time.

Key Features

• Adjustable Output Voltage: This component offers an output voltage range that can be set from 2.495 V to 36 V with the use of two external resistors. This flexibility makes it suitable for a wide range of applications.
• Low Dynamic Impedance: The dynamic output impedance of the ST431AC is typically 0.2 ohms, which is a testament to its ability to maintain stable performance under varying load conditions.
• Temperature Stability: With a typical temperature coefficient of only 50 ppm/°C, the device ensures consistent performance across a temperature range of -40°C to +125°C.
• Wide Operating Current Range: The ST431AC operates efficiently with a current range between 1 mA to 100 mA, offering a broad scope of usage in different circuit configurations.

Applications

The ST431AC is suitable for a plethora of applications, including but not limited to:

• Power supplies
• Battery chargers
• Switching power supplies
• Motor drives
• Automotive electronics
• Consumer electronics

Quality and Reliability

STMicroelectronics is committed to delivering high-quality products, and the ST431AC is no exception. It is manufactured to meet rigorous standards ensuring reliability and performance in even the most demanding applications. The device is available in TO-92, SOT-23, and SO-8 packages, providing designers with flexibility in terms of board space and application requirements.

Environmental Compliance

The ST431AC is designed with environmental responsibility in mind. It complies with the RoHS directive, which limits the use of hazardous substances in electronic equipment, making it an environmentally friendly choice for manufacturers and consumers alike.