MIC38HC42-1YN

AC DC Converters, Offline Switchers Overview

The MIC38HC42-1YN is a monolithic switch-mode power supply (SMPS) controller manufactured by Microchip Technology. It is designed for high-efficiency offline converter applications, supporting boost, buck, flyback, and forward topologies. The device operates with an input voltage range of 9V to 20V and features a switching frequency of 500kHz. It achieves up to 96% efficiency and includes thermal shutdown protection. The component is available in an 8-DIP package with a junction temperature rating of -40°C to 150°C.

AC DC Converters, Offline Switchers Feature Summary

• Monolithic integration for offline SMPS control
• Supports multiple converter topologies including boost, buck, flyback, and forward
• Integrated thermal shutdown protection

AC DC Converters, Offline Switchers Applications

• Offline power supply designs
• Industrial control systems
• Consumer electronics power adapters

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'YN' against the official Microchip datasheet to confirm pinout and electrical specifications. Ensure compatibility with required isolation standards if used in mains-connected circuits. Check for RoHS compliance documentation prior to final procurement decisions.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring a versatile offline controller with support for various transformer-based topologies. Consider the 8-DIP package for through-hole assembly requirements. Evaluate the 500kHz switching frequency against EMI constraints and transformer size limitations for the target design.

AC DC Converters, Offline Switchers Part Context

This part belongs to the MIC38C42 family of multi-topology offline switch controllers from Microchip Technology. These devices are engineered to provide flexible solutions for AC-DC conversion, allowing designers to implement different power architectures using a single controller type.

AC DC Converters, Offline Switchers Replacement Considerations

Publicly confirmed substitute part numbers for MIC38HC42-1YN were not identified in the provided source material.