Maxim Integrated MAX6708SKA Microprocessor Supervisory Circuit

The Maxim Integrated MAX6708SKA is a state-of-the-art microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when monitoring nominal system voltages from 1.8V to 5.0V. This compact supervisory circuit is an ideal solution for system designers looking to enhance system integrity with minimal space requirement and power consumption.

The MAX6708SKA offers a variety of features that make it a versatile choice for a wide range of applications. Its primary function is to assert a reset signal whenever the VCC supply voltage falls below a preset threshold, ensuring that the µP starts up in a known state. The reset signal remains asserted for a minimum timeout period after VCC has risen above the reset threshold, providing ample time for the system to stabilize.

Key features of the MAX6708SKA include:

• Programmable reset timeout delay
• Low supply current of 5.5µA (typical), ideal for portable battery-operated applications
• Factory-trimmed reset threshold voltages for monitoring 1.8V, 2.5V, 3.0V, 3.3V, and 5.0V powered systems
• Debounced manual reset input
• Capable of driving large capacitive loads
• Immune to short VCC transients
• Compact SOT-23 package

With its precision voltage monitoring and low power consumption, the MAX6708SKA is particularly well-suited for portable devices, computers, controllers, and intelligent instruments where power efficiency and reliability are crucial. Its manual reset capability allows for a system reset to be triggered with a simple push-button, providing additional flexibility for system maintenance and troubleshooting.

The device's small form factor does not compromise its performance, making it an excellent choice for applications where space is at a premium but robustness is required. The MAX6708SKA is a reliable component that ensures your system maintains its integrity, even in the face of power supply variability or unexpected disruptions.