TEA1532P/N1,112

Overview

The TEA1532P/N1,112 is a GreenChip II SMPS control IC designed for offline AC/DC converters. It utilizes current-mode control with a fixed maximum switching frequency of 75kHz. The device integrates a high-voltage startup circuit and an internal power MOSFET rated for 650V breakdown voltage. It operates within a supply voltage range of 7.5V to 40V and features comprehensive protection mechanisms including cycle-by-cycle current limiting, thermal shutdown, and output short-circuit protection.

Feature Summary

• Integrates a high-voltage startup circuit for efficient operation from the rectified mains line.
• Includes an internal 650V power switch to reduce external component count.
• Provides advanced protection against over-temperature, output short circuits, and over-current conditions.

Applications

• Offline flyback power supplies
• AC/DC adapters
• Battery chargers

Procurement Notes

Verify the specific suffix N1,112 against official NXP documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status as per the latest datasheet revision. Check for obsolescence notices or lifecycle changes directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component for applications requiring a highly integrated solution for low-to-medium power offline conversion. The fixed 75kHz frequency simplifies transformer design compared to variable frequency controllers. Ensure the required output power falls within the capabilities of the internal switch and that the DIP-8 package fits the mechanical constraints.

Part Context

This part belongs to the NXP GreenChip II family, which focuses on high-efficiency, low-noise SMPS controllers. It succeeds earlier GreenChip generations by offering improved integration and reduced standby power consumption. The TEA1532 series is widely recognized in consumer electronics and industrial power supply designs for its reliability and ease of implementation.

Replacement Considerations

Consult official substitution lists for direct equivalents. Verify pin compatibility and electrical parameters if considering alternative GreenChip models.