TEA1720B3T/1J

Overview

The TEA1720B3T/1J is an AC-DC controller IC from the GreenChip™ series, designed for high-voltage low-power flyback applications. It features a startup voltage of 17V and operates with a VCC range of 8.5V to 40V. The device supports a switching frequency between 23kHz and 52kHz and delivers up to 12.5W of power. It includes fault protection mechanisms such as open circuit, over temperature, over voltage, and short circuit handling. Packaged in an 8-SOIC format, it functions without an internal switch.

Feature Summary

• Integrated high-voltage start-up capability
• Advanced control modes for improved efficiency
• Comprehensive fault protection including overvoltage and overtemperature

Applications

• Low power isolated power supplies
• Flyback converter designs
• Consumer electronics adapters

Procurement Notes

Verify component status carefully as this specific part number may be obsolete or discontinued. Confirm availability through authorized distributors and check for valid replacement alternatives if current stock is unavailable. Ensure the ordering suffix matches the required package and tape configuration.

Selection Notes

Select this controller for cost-effective designs requiring reduced component count. It is suitable for applications needing advanced control modes to maximize efficiency. Consider the 8-SOIC package constraints and the absence of an integrated power switch when designing the external circuitry.

Part Context

This component belongs to NXP's GreenChip™ family of AC-DC controllers. These devices are engineered to provide highly integrated solutions that simplify design while maintaining high performance standards for low-power applications.

Replacement Considerations

Consult official documentation for confirmed substitute part numbers within the TEA172x portfolio or equivalent NXP offerings.