SG3543N

Power Supply Controllers, Monitors Overview

The SG3543N is a power supply supervisor integrated circuit manufactured by Microchip Technology. It is housed in a 16-pin PDIP package and operates within a temperature range of -40°C to +85°C. The device functions as an adjustable threshold monitor for sophisticated power supply systems, providing essential control and monitoring capabilities. It is RoHS compliant and lead-free, designed for reliable performance in industrial and commercial electronic applications requiring precise voltage supervision.

Power Supply Controllers, Monitors Feature Summary

• Monitors and controls output of sophisticated power supply systems
• Adjustable threshold functionality for flexible supervision requirements
• Integrated design containing all necessary functions for power management

Power Supply Controllers, Monitors Applications

• Industrial power supply monitoring
• Commercial equipment voltage supervision
• System reset generation in embedded controllers

Power Supply Controllers, Monitors Procurement Notes

Verify the specific manufacturer source, as SG3543N part numbers have historically been associated with Microsemi Corporation before its acquisition by Microchip Technology. Ensure the datasheet provided matches the current Microchip Technology documentation to confirm pinout compatibility and electrical specifications. Check for any legacy packaging or obsolete status indicators when sourcing from distributors.

Power Supply Controllers, Monitors Selection Notes

Select this component when a robust, single-supervisor solution is required for complex power architectures. The adjustable threshold feature allows customization for various rail voltages without external resistors. Consider the 16-pin DIP package for prototyping or through-hole assembly needs. Verify thermal operating limits against the application environment to ensure reliability within the specified -40°C to +85°C range.

Power Supply Controllers, Monitors Part Context

This component belongs to the family of power supply support circuits designed for system integrity. It serves as a critical interface between power rails and logic controllers, ensuring stable operation by detecting under-voltage or over-voltage conditions. Its integration simplifies board design by consolidating monitoring functions into a single monolithic IC.

Power Supply Controllers, Monitors Replacement Considerations

Cross-reference with other Microchip supervisors like the TC75 series for similar functionality in different packages. Verify pin-to-pin compatibility if substituting with older Microsemi-branded units. Ensure that any alternative device supports the same adjustable threshold mechanism and meets the required operating temperature range.