Diodes Incorporated APX803L05-36SA-7 Microprocessor Reset Circuit

The APX803L05-36SA-7 is a specialized microprocessor supervisory circuit designed by Diodes Incorporated to ensure reliable operation of microprocessor (µP) systems. This compact device plays a crucial role in monitoring the power supply voltage of digital systems, providing an active-low reset signal whenever the voltage falls below a predetermined threshold. It is an essential component for systems that require a high degree of operational stability and accuracy.

With a nominal threshold voltage of 3.6V, the APX803L05-36SA-7 is particularly suited for 3.3V powered systems, ensuring that they are reset properly during power-up, power-down, and brown-out conditions. The reset output remains asserted for a minimum of 240ms after the supply voltage has risen above the reset threshold level, providing ample time for the system to stabilize before normal operation resumes.

Encased in an SOT-23 package, this voltage detector is not only space-efficient but also offers a low supply current feature, making it an excellent choice for portable and battery-operated applications. The device operates over a wide temperature range of -40°C to +85°C, ensuring consistent performance across various environmental conditions.

Key features of the APX803L05-36SA-7 include:

• Threshold Voltage: Precisely set at 3.6V for 3.3V systems.
• Reset Timeout: Minimum 240ms reset signal ensures system stability.
• Low Supply Current: Ideal for power-sensitive applications.
• Operating Temperature: Wide range from -40°C to +85°C for robust performance.
• Form Factor: Small SOT-23 package for space-constrained applications.

The APX803L05-36SA-7 is a reliable solution for system designers looking to enhance the operational integrity of their microprocessor systems. By providing an active monitoring and reset mechanism, this device helps prevent system failures due to unpredictable voltage fluctuations, thereby safeguarding data integrity and prolonging the lifespan of the electronic system.

Whether used in computers, embedded systems, or IoT devices, the APX803L05-36SA-7 from Diodes Incorporated is an indispensable component for maintaining system health and ensuring that digital systems function at their best.