TEA1750
NXP
The TEA1750 is a combination controller with a PFC and flyback controller integrated in to an SO-16 package.
Application NoteNxp
NXP AN10782: TEA1750 GreenChip III Integrated PFC and Flyback Controller Application Note
Technical guide for the TEA1750 GreenChip III, an integrated PFC and flyback controller IC for efficient SMPS designs using quasi-resonant and DCM operation.
Overview
This application note describes the functionality and design considerations for the NXP TEA1750, a GreenChip III family IC that integrates Power Factor Correction (PFC) and flyback controllers into a single SO-16 package. Both controllers operate in quasi-resonant or Discontinuous Conduction Mode (DCM) with valley detection to optimize efficiency. The IC features a high-voltage start-up source, a wide VCC range up to 38V, and independent switching frequencies for both stages. It includes integrated protections such as brown-out, overcurrent (OCP), overvoltage (OVP), and internal overtemperature protection. The document provides detailed pin descriptions, functional control logic, and application schematics for implementing cost-effective power converters with low external component counts.
Use Cases
- Notebook adapters
- LCD TV power supplies
- PC power supplies
- High-efficiency switched-mode power supplies (SMPS)
- Cost-effective power converter design
Topics
NXP
TEA1750
GreenChip III
PFC controller
flyback controller
SMPS
quasi-resonant
DCM
valley switching
power factor correction
AN10782
Referenced Parts
| TEA1750 | NXP | The TEA1750 is a combination controller with a PFC and flyback controller integrated in to an SO-16 package. |