The AZ431BN-B is a precision adjustable shunt regulator manufactured by BCD Semiconductor Manufacturing Limited. This component functions as a programmable Zener diode, allowing for precise control over the breakdown voltage. It is commonly used as a voltage reference in power supplies, voltage monitors, and error amplifiers. Due to its 'END-OF-LIFE' status, verifying availability and considering alternative parts is essential for new designs.

Applications

• Switching Power Supplies
• Linear Regulators
• Voltage Monitors
• Error Amplifiers
• Adjustable Voltage References
• Battery Chargers

Features

• Adjustable Output Voltage: Programmable output voltage from Vref (2.5V) to 36V with two external resistors.
• Low Output Noise
• Low Dynamic Output Impedance
• Sink Current Capability: 100mA
• Temperature Compensated
• Typical output impedance of 0.2 Ω.

Benefits

• Provides a precise and stable voltage reference.
• Offers flexibility in design due to its adjustable output voltage capability.
• Enhances the performance of power supplies and regulators with its low noise and impedance characteristics.
• Reduces the need for multiple fixed voltage references.
• Suitable for use in high-performance applications.

Additional Details

The AZ431BN-B is typically available in a TO-92 package. The output voltage is set by two external resistors, forming a voltage divider. The datasheet provides equations and guidance for selecting appropriate resistor values. It is important to consider the temperature coefficient of the resistors to maintain voltage stability over a wide temperature range. Given that this part is marked 'END-OF-LIFE', it's recommended to check for available stock and consider potential replacements for new projects with BCD Semiconductor Manufacturing Limited or their distributors. The part is also available in surface mount packages like SO-8. Always refer to the datasheet for comprehensive specifications and application recommendations.