The AP431SA from Diodes Incorporated is a precision adjustable shunt voltage reference with guaranteed temperature stability over the entire temperature range of operation. It is designed to be compatible with the popular TL431 series and offers a minimum temperature coefficient, making it a reliable choice for critical applications that demand a stable reference voltage.

Key Features

• Adjustable Output Voltage: This device offers an output voltage range that can be set to any value between 2.495V and 36V with two external resistors.
• Low Dynamic Impedance: The AP431SA provides a low output impedance, which enhances load regulation and ensures stability even with varying load conditions.
• High Stability: It features a typical temperature stability of ±0.5% over the entire operating temperature range (-40°C to +85°C), making it highly reliable for precision applications.
• Low Voltage Operation: With a minimum cathode current requirement of just 0.4 mA, the AP431SA is suitable for low voltage operations, ensuring energy efficiency in battery-operated devices.

Applications

The AP431SA is widely used in a variety of applications where an accurate voltage reference is crucial. These include:

• Power Supplies
• Battery Chargers
• Switching Power Supplies
• Instrumentation Systems
• Adjustable Voltage Regulators
• Precision Data Systems

Package and Quality

Diodes Incorporated provides the AP431SA in a small-outline transistor (SOT-23) package, which is ideal for space-constrained applications. The device's quality is backed by Diodes Incorporated's commitment to high manufacturing standards, ensuring that each unit meets stringent performance criteria.

Conclusion

Overall, the AP431SA from Diodes Incorporated is a versatile and reliable component for any design requiring a precise and stable voltage reference. Its adjustable output voltage, low dynamic impedance, and excellent temperature stability make it an excellent choice for designers looking to enhance the performance of their power management systems.