TC33373VAT

AC DC Converters, Offline Switchers Overview

The TC33373VAT is an offline flyback AC/DC converter IC from Microchip Technology, designed for isolated power conversion. It integrates a high-voltage switch with a breakdown voltage of 700V and operates at a switching frequency of 100kHz. The device supports up to 75W output power and delivers a peak current of 2.7A. It features under-voltage lockout (UVLO), thermal shutdown, and current limiting protection. Operating junction temperature ranges from -40°C to +150°C, with startup voltage at 8.5V.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage internal switch for compact offline flyback designs
• Provides comprehensive fault protection including UVLO, thermal shutdown, and current limiting
• Supports wide operating temperature range suitable for industrial environments

AC DC Converters, Offline Switchers Applications

• Isolated AC/DC power supplies
• Offline flyback converter topologies
• General-purpose power management in consumer electronics

AC DC Converters, Offline Switchers Procurement Notes

Verify the exact datasheet version and ordering suffixes directly with Microchip Technology or authorized distributors. Confirm that the TO-220-5 package matches your thermal and mechanical requirements. Ensure compliance with RoHS directives as specified in the official product documentation before finalizing procurement decisions.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring integrated high-voltage switching in a flyback topology. Consider the 700V breakdown rating and 2.7A peak current capability when designing transformer specifications. Evaluate thermal performance given the 150°C maximum junction temperature limit and the need for adequate heat sinking in the TO-220-5 package.

AC DC Converters, Offline Switchers Part Context

This part belongs to Microchip's family of offline AC/DC converters. It is categorized under PMIC voltage regulators and linear regulators but functions specifically as a switching controller with integrated power switch. The TO-220-5 package facilitates through-hole mounting for higher power dissipation scenarios compared to surface-mount alternatives.

AC DC Converters, Offline Switchers Replacement Considerations

Consult Microchip Technology's official cross-reference documentation for verified substitute part numbers. Do not assume functional compatibility with generic flyback controllers without verifying pinout, voltage ratings, and control logic alignment against the TC33373VAT datasheet.

AC DC Converters, Offline Switchers FAQ

What is the maximum switching frequency of the TC33373VAT?

The TC33373VAT operates at a fixed switching frequency of 100kHz.

Does the TC33373VAT include an internal switch?

Yes, the device integrates a high-voltage internal switch with a 700V breakdown rating.