Maxim Integrated MAX6383XR30D2 Microprocessor Reset Circuit

The MAX6383XR30D2 from Maxim Integrated is a compact, high-precision microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides a robust solution for managing system resets, ensuring reliable operation and preventing data corruption during brownout and power failure conditions.

This device features a factory-set reset threshold voltage of 3.0V, which is ideal for 3.3V powered systems. The reset output remains asserted for a minimum timeout period of 210ms after VCC has risen above the reset threshold level, ensuring the system has sufficient time to stabilize before the processor starts operating.

The MAX6383XR30D2 comes in a tiny, surface-mount SOT23 package, which makes it an excellent choice for space-constrained applications. Its small footprint does not compromise its performance, as it boasts low supply current, making it suitable for battery-powered and portable devices where power efficiency is critical.

Key features of the MAX6383XR30D2 include:

• Factory-Set Reset Threshold Voltage: 3.0V
• Minimum Reset Timeout Period: 210ms
• Low Supply Current: Ideal for portable equipment
• Guaranteed Reset Valid to VCC = 1V
• Immune to Short VCC Transients
• Push-Pull RESET Output
• Compact SOT23 Package

The device also features a push-pull RESET output, which eliminates the need for an external pull-up resistor and helps to reduce component count and system cost. The output stage of the MAX6383XR30D2 is designed to be immune to short VCC transients, providing a stable and reliable reset signal even in noisy environments.

Overall, the MAX6383XR30D2 is an excellent choice for designers looking for a simple, efficient, and reliable solution to protect their digital systems. With its precision monitoring capabilities and compact design, this reset circuit from Maxim Integrated is well-suited for a wide range of applications, including computers, controllers, intelligent instruments, and portable consumer electronics.