TEA1553T/N1,518

Overview

The TEA1553T/N1,518 is an integrated offline flyback switch from NXP USA Inc., designed for AC-DC conversion applications. It features a 650V voltage breakdown rating and operates within a switching frequency range of 25kHz to 125kHz. The device utilizes a 16-SOP package and includes internal fault protection mechanisms. It supports an input start-up voltage of 11V and is suitable for power levels up to 250W.

Feature Summary

• Integrated offline flyback switch topology
• Built-in fault protection mechanisms
• Wide switching frequency operation range

Applications

• AC-DC power supplies
• Offline converter designs
• General purpose power adapters

Procurement Notes

Verify the exact part number suffix against official NXP documentation to ensure correct package and tape/reel specifications. Confirm current availability status as distribution channels may vary. Cross-reference with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component for isolated flyback converter designs requiring high voltage tolerance. Ensure the application demands fall within the specified 250W power limit and 650V breakdown capability. Verify that the required switching frequency aligns with the 25kHz to 125kHz operational range for optimal efficiency.

Part Context

This IC belongs to the NXP GreenChip series, which focuses on highly integrated, low-power solutions for AC-DC power applications. The TEA1553 variant specifically targets offline switch implementations, combining control and switching functions in a single package to simplify design and reduce component count.

Replacement Considerations

Consult official NXP substitution guides for compatible alternatives. Verify pin compatibility and electrical parameters such as breakdown voltage and operating frequency when considering cross-references.