Product Overview: MAX6357TZUT from Maxim Integrated

The MAX6357TZUT is a highly reliable, low-power 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 systems that require voltage monitoring. This supervisory IC is ideal for use in a wide range of applications, including computers, controllers, intelligent instruments, and portable battery-powered electronics.

Operating over a wide voltage range, the MAX6357TZUT is designed to maintain system integrity by monitoring the power supply voltage. It asserts a reset signal whenever the VCC supply voltage falls below its factory-set reset threshold. The reset output remains asserted for a preset timeout period after VCC has risen above the reset threshold, ensuring the system has sufficient time to stabilize before the processor starts operating.

The device comes in a space-saving SOT23 package, which is highly beneficial for applications where space is at a premium. It features a low supply current of 1.2µA, making it an excellent choice for portable, battery-operated applications where power efficiency is crucial. The MAX6357TZUT also includes a debounced manual reset input that allows for a manual reset, providing an additional layer of system control.

Key features of the MAX6357TZUT include:

• Precision factory-set VCC reset thresholds
• 150ms min reset timeout period
• Low, 1.2µA supply current
• Debounced manual reset input
• Immune to short VCC transients
• Wide operating temperature range (-40°C to +125°C)
• Compact SOT23 package

The MAX6357TZUT supervisory circuit provides a straightforward solution for system monitoring without the need for external adjustments, making it a robust and reliable choice for ensuring the proper operation of µP systems.