Maxim Integrated MAX6423XS23+T Microprocessor (µP) Supervisory Circuit

The MAX6423XS23+T is a highly efficient microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in system monitoring applications. This device is particularly suitable for portable and space-constrained applications due to its small footprint and surface-mount packaging.

With a factory-trimmed reset threshold voltage of 2.32V, the MAX6423XS23+T ensures that systems operate within their specified voltage ranges, generating a reset signal whenever the monitored voltage drops below this preset threshold. The reset output remains asserted for a minimum of 140ms after V_CC has risen above the reset threshold level, providing ample time for the system to stabilize before the processor is allowed to run.

This supervisory circuit is available in a compact SC70 package, making it an ideal choice for applications where space is at a premium. It features a low supply current of only 1.2µA, which is highly beneficial for battery-operated devices, helping to extend battery life and reduce power consumption.

Key features of the MAX6423XS23+T include:

• Precision factory-set V_CC reset thresholds
• Low, 1.2µA supply current
• 140ms minimum power-on reset delay
• Guaranteed reset valid to V_CC = 1V
• Immune to short V_CC transients
• SC70 packaging for space-saving applications

The device's immunity to short V_CC transients ensures reliable operation even in environments where supply noise could potentially cause issues. This feature, combined with the guaranteed reset operation with V_CC as low as 1V, makes the MAX6423XS23+T an extremely robust solution for system monitoring.

Whether you are designing consumer electronics, portable devices, or any other system requiring a dependable supervisory function, the Maxim Integrated MAX6423XS23+T offers a compact, power-efficient, and cost-effective solution to safeguard your application against undervoltage conditions.