SG1548L-883B

Power Supply Controllers, Monitors Overview

The SG1548L-883B is a high-reliability DC-to-AC programmable quad line fault monitor manufactured by Microchip Technology. This supervisory circuit features four monitored inputs with open collector outputs and operates within a supply voltage range of 4.5 V to 40 V. It provides specific overvoltage and undervoltage thresholds of 2.625 V and 2.375 V, respectively, with a reset delay time of 25 ms. The device consumes 4.8 mA of operating current and functions reliably across an extended temperature range from -55°C to +125°C.

Power Supply Controllers, Monitors Feature Summary

• Provides simultaneous monitoring of four independent input lines for fault detection
• Features programmable threshold capabilities for precise voltage supervision
• Delivers open collector output signals for flexible interface integration

Power Supply Controllers, Monitors Applications

• Aerospace power distribution systems requiring multi-channel supervision
• Military electronic equipment demanding high-reliability fault monitoring
• Avionics control units needing robust voltage status indication

Power Supply Controllers, Monitors Procurement Notes

Verify the specific ordering suffix and package configuration directly with Microchip Technology or authorized distributors before purchase. Confirm that the component meets all required environmental and reliability standards for your specific application environment. Ensure compatibility with existing design specifications regarding pinout and electrical characteristics.

Power Supply Controllers, Monitors Selection Notes

Select this component when a system requires monitoring multiple voltage rails simultaneously using a single integrated solution. Consider its wide operating temperature range and high-reliability construction for harsh environments. Evaluate the open collector output capability against the logic levels and pull-up requirements of the downstream processing circuitry.

Power Supply Controllers, Monitors Part Context

This part belongs to Microchip's high-reliability linear and supervisory product family designed for aerospace and defense applications. These components are engineered to meet stringent quality and performance standards required in critical systems. The SG1548L-883B specifically addresses the need for comprehensive power integrity monitoring in complex electronic architectures.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Microchip Technology for potential cross-reference options or updated revisions.