TEA1751
NXP Semiconductors
The TEA1751 is a combination controller with a PFC and flyback controller integrated in to an SO-16 package.
Application NoteNxp
AN10789: GreenChip III TEA1751 Integrated PFC and Flyback Controller
Technical guide for the TEA1751 GreenChip III controller, featuring integrated PFC and flyback functions for high-efficiency switched-mode power supplies (SMPS).
Overview
This application note provides detailed design and functionality information for the NXP TEA1751, a highly integrated PFC and flyback controller combination IC. Fabricated using a Silicon-On-Insulator (SOI) process, the device is designed for cost-effective, efficient power supplies. Both the PFC and flyback controllers operate in Quasi-Resonant (QR) or Discontinuous Conduction Mode (DCM) with valley detection. The document describes pin functions, control loops, protection features—including brownout, overvoltage, and overcurrent protection—and start-up sequences. It also outlines the differences between the TEA1751T (safe restart) and TEA1751LT (latched protection) versions.
Use Cases
- Notebook computer adapters
- PC power supplies
- Consumer electronics power adapters
- High-efficiency AC-DC power converters
Topics
GreenChip III
TEA1751
PFC controller
flyback controller
SMPS
Quasi-Resonant
SOI process
Power Factor Correction
AC-DC converter
valley switching
Referenced Parts
TEA1751LT
NXP Semiconductors
available as safe restart (TEA1751T) or latched (TEA1751LT) protection
TEA1751T
NXP Semiconductors
available as safe restart (TEA1751T) or latched (TEA1751LT) protection
| TEA1751 | NXP Semiconductors | The TEA1751 is a combination controller with a PFC and flyback controller integrated in to an SO-16 package. |
| TEA1751LT | NXP Semiconductors | available as safe restart (TEA1751T) or latched (TEA1751LT) protection |
| TEA1751T | NXP Semiconductors | available as safe restart (TEA1751T) or latched (TEA1751LT) protection |