LTV-817B
Lite-On
Fig 7. The proposed VSENSE circuit for minimizing the influence of the dark current ... LTV-817B
Application NoteNxp
AN11013: GreenChip III TEA1753 Integrated PFC and Flyback Controller
Application note for the TEA1753 GreenChip III, an integrated PFC and flyback controller for high-efficiency power supplies, notebook adapters, and PC power applications.
Overview
This application note provides technical details for the TEA1753, a combination Power Factor Correction (PFC) and flyback controller IC housed in an SO16 package. Both controllers operate in Quasi-Resonant (QR) and Discontinuous Conduction Mode (DCM) with valley detection for optimized efficiency. The document details integrated features including high-voltage startup, brownout protection, dual-boost PFC functionality, and frequency reduction modes to maintain efficiency at low power levels. It provides comprehensive pin descriptions, functional blocks, and application schematics featuring supporting components like the TEA1703 standby controller and TEA1791 synchronous rectifier.
Use Cases
- Notebook power adapters
- PC power supplies
- High-efficiency switched-mode power supplies (SMPS)
- Low standby power applications
Topics
TEA1753
GreenChip III
PFC
flyback controller
SMPS
Quasi-Resonant
DCM
TEA1703
TEA1791
notebook adapter
Referenced Parts
BC547
NXP
Fig 7. The proposed VSENSE circuit for minimizing the influence of the dark current ... BC547
TEA1703
NXP
Using the TEA1753 and TEA1703 provides a solution for applications needing an extremely low Standby power mode.
TEA1753
NXP
The TEA1753 is a combination controller with a PFC and flyback controller integrated into an SO16 package.
TEA1791
NXP
Fig 2. Application schematic (part2) ... TEA1791
| LTV-817B | Lite-On | Fig 7. The proposed VSENSE circuit for minimizing the influence of the dark current ... LTV-817B |
| TEA1753LT | NXP | available as safe restart (TEA1753T) or latched (TEA1753LT) protection |
| TEA1753T | NXP | available as safe restart (TEA1753T) or latched (TEA1753LT) protection |
| BC547 | NXP | Fig 7. The proposed VSENSE circuit for minimizing the influence of the dark current ... BC547 |
| TEA1703 | NXP | Using the TEA1753 and TEA1703 provides a solution for applications needing an extremely low Standby power mode. |
| TEA1753 | NXP | The TEA1753 is a combination controller with a PFC and flyback controller integrated into an SO16 package. |
| TEA1791 | NXP | Fig 2. Application schematic (part2) ... TEA1791 |