Maxim Integrated MAX6384XS29D3-T Microprocessor Reset Circuit

The Maxim Integrated MAX6384XS29D3-T is a highly reliable, low-power microprocessor (μP) supervisory circuit designed to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems with a 2.93V power supply voltage.

This compact supervisory IC is ideal for monitoring 3V to 3.3V power supplies and can assert a reset signal whenever the VCC supply voltage falls below its preset threshold of 2.93V. The reset output remains asserted for a minimum timeout period of 280ms after VCC has risen above the reset threshold, ensuring that the μP has adequate time to stabilize and that the system can return to a known state before resuming operation.

With its small size, the MAX6384XS29D3-T is available in a space-saving, 4-pin SC70 package, making it suitable for use in portable devices where space is at a premium. The device operates over a wide temperature range of -40°C to +125°C, making it suitable for demanding industrial applications and environments where temperature extremes are common.

Key features of the MAX6384XS29D3-T include:

• Factory-set reset threshold voltage of 2.93V tailored for 3V to 3.3V power supplies.
• Low supply current of only 1.2μA (typical), which is beneficial for battery-powered applications.
• Guaranteed reset valid to VCC = 1V, ensuring reliable operation during low voltage conditions.
• Immune to short VCC transients, providing stable performance under noisy conditions.
• Push-pull active-low reset output, which provides a strong signal to connected components without requiring an external pull-up resistor.

The MAX6384XS29D3-T is a trusted solution for system designers looking to enhance the reliability and performance of their digital systems. Its ease of integration and robust feature set make it an excellent choice for a wide range of applications, including portable/battery-powered equipment, computers, controllers, intelligent instruments, and critical μP and μC power monitoring.