TEA1532AT/N1,118

Overview

The TEA1532AT/N1,118 is a GreenChip II SMPS control IC designed for AC/DC converters. It integrates a current-mode controller with a high-voltage switched current source for startup and auxiliary winding supply. The device operates in fixed frequency mode or quasi-resonant mode to minimize switching losses. It features comprehensive protection functions including cycle-by-cycle current limiting, overvoltage protection, and thermal shutdown. The component is housed in an SO8 package.

Feature Summary

• Integrates a high-voltage switched current source for efficient startup and auxiliary power supply
• Supports both fixed frequency operation and quasi-resonant mode for optimized efficiency
• Includes built-in cycle-by-cycle current limiting and overvoltage protection mechanisms
• Features thermal shutdown capability to ensure safe operation under fault conditions

Applications

• Offline flyback power supplies
• AC/DC converter adapters
• Low-power consumer electronics power sources

Procurement Notes

Verify the exact suffix and tape/reel specifications against the official NXP datasheet for TEA1532AT. Confirm that the part number matches the specific voltage and timing variants required for your design. Ensure compliance with RoHS directives as indicated in the manufacturer's documentation. Cross-reference the ordering code with authorized distributors to avoid counterfeit components.

Selection Notes

Select this IC for applications requiring high efficiency in low-to-medium power ranges. Consider the integrated startup circuitry to reduce external component count. Evaluate the thermal performance requirements against the SO8 package limitations. Ensure the input voltage range aligns with the controller's operational specifications for stable regulation.

Part Context

This component belongs to the NXP GreenChip II family of SMPS controllers. These devices are engineered for energy-efficient power conversion in offline applications. The family emphasizes reduced standby power consumption and simplified design through high integration levels. The TEA1532AT variant specifically targets cost-sensitive designs without compromising reliability.

Replacement Considerations

Consult NXP documentation for direct pin-compatible substitutes within the GreenChip series. Verify electrical parameter equivalence before substituting. Generic SMPS controllers may not offer identical startup current characteristics.