Maxim Integrated MAX6383XR17D3-T Microprocessor Reset Circuit

The MAX6383XR17D3-T is a compact, high-precision microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides a robust solution for systems that require a reliable reset function to ensure proper operation upon power-up, power-down, or in the event of a brownout condition. This microprocessor reset circuit is ideal for use in a wide range of applications, including portable/battery-powered equipment, computers, controllers, and intelligent instruments.

One of the key features of the MAX6383XR17D3-T is its ability to assert a reset signal whenever the VCC supply voltage falls below the factory-set reset threshold level of 1.7 volts. The reset output remains asserted for a minimum reset timeout period after VCC has risen above the reset threshold, ensuring that the system has sufficient time to stabilize before the processor starts. This timeout period is typically 140ms, which helps prevent system errors during power-up or transient conditions.

The device comes in a tiny, 3-pin SC70 package, making it an excellent choice for space-constrained applications. Despite its small size, it offers excellent thermal performance and reliability. The MAX6383XR17D3-T operates over a wide temperature range of -40°C to +125°C, accommodating demanding environmental conditions.

Additional features of the MAX6383XR17D3-T include a low supply current of 1.1µA (typical), which is beneficial for power-sensitive applications. It also has an active-low, open-drain RESET output, which allows for simple interfacing with other logic components. The device is designed with immunity to short VCC transients, adding an extra layer of protection for the systems it monitors.

Maxim Integrated's commitment to quality ensures that the MAX6383XR17D3-T is a reliable component for maintaining system integrity. By monitoring the power supply voltage and providing a timely reset signal, this supervisory circuit helps maintain the proper function and increases the reliability of electronic systems.