品佳集團力推 Infineon 數位電源平台(.dp)- IDP2302 120W TV 電源方案
The 120W SMPS was using digital PFC-LLC combo controller IDP2302, which is the 2nd generation of digital combo controller with a 16-pin package developed by Infineon Technologies. IDP2302 is specially designed for applications of switch mode power supplies used in TV power system.
The IDP2302 is a highly integrated multi-mode power factor correction (PFC) and half bridge LLC (HB LLC) controller. Multi-mode operation of PFC controller and zero voltage switching of the LLC MOSFETs can significantly increase the power conversion efficiency, especially light load efficiency, while the system costs are minimized by integrated high-voltage start-up cell, regulator for the PFC converter, MOSFET drivers and internal communication between the PFC and LLC controller. The auxiliary power supply can be eliminated by means of integrated high-voltage start-up cell and advanced burst mode control. With active X-CAP discharge function, low stand-by power consumption during burst mode is supported. A comprehensive set of protection features built inside can greatly enhance the system operation safety. Up to 40 different parameters ensure the flexibility during system design to achieve optimal performance. All of these make IDP2302 a very competitive AC/DC controller for PFC-HB LLC resonant converter in the market.
DPAK Power MOSFETs are used in this reference design. For LED TV, slim SMPS board is the wish and also the challenge due to the limitation on both of active and passive components. Compared to Fullpak MOSFETs which are used in the conventional TV SMPS design, DPAK MOSFETs have the advantage on the component thickness and also the ease of assembly process. In this reference design, 2 pcs IPD50R280CE in parallel are used for PFC stage, and 2 pcs IPD50R1K4CE are used in LLC stage.
• Controller: IDP2302 (PFC +LLC Controller)
• IPD50R280CE *2 (PFC MOS)
• IPD50R1K4CE *2 (LLC MOS)
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