MIC38HC42-1YM-TR

AC DC Converters, Offline Switchers Overview

The MIC38HC42-1YM-TR is a monolithic switching mode power supply (SMPS) controller manufactured by Microchip Technology. It integrates a high-voltage startup circuit and supports multiple converter topologies including boost, buck, flyback, and forward configurations. The device operates with a fixed switching frequency of 500 kHz and features a maximum duty cycle of 96%. Designed for surface-mount applications, it is housed in an SOIC-14 package and functions within an ambient temperature range of -40°C to +85°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage startup circuit for simplified design
• Supports versatile topologies including boost, buck, flyback, and forward converters
• Features current-mode control architecture for stable operation

AC DC Converters, Offline Switchers Applications

• Industrial power supplies
• Telecommunications equipment
• Battery chargers

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix '-TR' confirms tape-and-reel packaging when ordering. Confirm that the '1Y' designation aligns with the required operating temperature range and pinout configuration for your target application. Cross-reference the datasheet revision date to ensure compatibility with your design specifications before finalizing procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring a single-chip solution for isolated or non-isolated DC-DC conversion. It is suitable for applications needing a 500 kHz switching frequency to balance efficiency and component size. Ensure the input voltage range and output power requirements fall within the capabilities defined in the official electrical characteristics table.

AC DC Converters, Offline Switchers Part Context

This part belongs to the MIC38HC42 family of high-performance SMPS controllers. It is designed as a drop-in replacement for legacy controllers in various industrial and commercial power supply architectures. The family offers flexibility through configurable feedback loops and protection features, catering to diverse power conversion needs.

AC DC Converters, Offline Switchers Replacement Considerations

Check for direct substitutes such as the MIC38C42 series for similar functionality. Verify pin compatibility and thermal performance if replacing existing components in a populated board. Consult the manufacturer's obsolescence notices for any lifecycle changes.