TEA1721DT/N1,118

Overview

The TEA1721DT/N1,118 is an AC-DC controller IC from NXP Semiconductors designed for flyback topologies. It integrates a high-voltage power MOSFET and operates as a GreenChip low-power SMPS controller. The device supports burst mode operation at approximately 1270 Hz to minimize no-load power consumption. It features internal startup circuitry and comprehensive protection mechanisms including overtemperature, overvoltage, and short-circuit protection.

Feature Summary

• Integrates a high-voltage power MOSFET with the control logic
• Supports burst mode operation for reduced no-load power consumption
• Includes internal startup circuitry for simplified design

Applications

• 5 W AC-DC power supplies
• Small home appliances
• Consumer electronics adapters

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and thermal characteristics. Ensure compatibility with target voltage ratings and switching frequency requirements before integration. Cross-reference datasheet revisions to validate pinout consistency and electrical parameters for the final design implementation.

Selection Notes

Select this component for applications requiring integrated power switching in compact form factors. It is suitable for designs prioritizing low standby power through burst mode capabilities. Consider the internal MOSFET voltage rating and thermal performance relative to the expected load conditions and ambient temperature constraints.

Part Context

This part belongs to the TEA172x GreenChip family of AC-DC controllers. These devices are engineered for cost-effective and efficient power conversion solutions. The series targets small power applications where size and efficiency are critical design constraints.

Replacement Considerations

Consult official substitution lists for verified alternatives. Verify electrical specifications and pin compatibility before replacing existing components in production designs.