Infineon's IDP2303 is a multi-mode PFC and LLC controller with an integrated digital engine that provides advanced algorithms for multi-mode operation, supporting the highest efficiency over the entire load range. The device also integrates a high-voltage 600V starter unit with advanced advances. The transmit mode achieves low standby power consumption. The UART interface can be used for communication and configuration in the circuit. Mainly used in LCD TV power supply, general purpose switching power supply (SMPS) and power adapter. This article introduces the highlights and main features of the IDP2303 product, block diagram and Application circuit, and DEMO-IDP2303-120W PFC+LLC converter main indicators, circuit diagram, bill of materials and PCB design.
The IDP2303 is a mulTI-mode PFC and LLC controller combined with a floaTIng high side driver and a startup cell. Adigital engine provides advanced algorithms for mulTI-mode operaTIon to support highest efficiency over the whole loadrange. A comprehensive and configurable protection feature set is In addition a single-time-programming (OTP) unit is integrated To provide awide set of configurable parameters that help to ease the design in phase.
Highlights of IDP2303 products:
• Integrated 600V startup cell
• Integrated floating driver based on coreless transformer technology
• Digital multi-mode operation for higher efficiency curve
• Supports low stand-by power by means of direct X-cap discharge function andadvanced burst mode control
• Eliminates the auxiliary power supply by means of integrated startup cell andburst mode
• UART interface for communication and in-circuit configuration
Flexible design-in by means of one time programming capability for a widerange of parameters
Main features of IDP2303:
• Multi-mode PFC
• Configurable PFC gate driver
• Synchronous PFC and LLC burst mode control
• Configurable non-linear LLC VCO curve
• Configurable soft-start
• VAC input voltage sensing and X cap discharge via HVPin
IDP2303 application:
• LCD-TV 75W~ 300W
• Generarl SMPS
Figure 1. IDP2303 block diagram
Figure 2. Typical application diagram of IDP2303
120W demo board
The demo board described in this document is a 120 W SMPS using a digital PFC-LLC combi controller (the IDP2303), which is the second generation of digital combi controller with a 16pin package developed by Infineon Technologies. The IDP2303 is specially designed for switch Mode power supplies used in TV power system applications.
The IDP2303 is a highly integrated multi-mode power factor correction (PFC) and half-bridge LLC (HB LLC) controller. Multi-mode operation of the 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 the integrated high-voltage start-up cell, regulator for the PFC converter, MOSFET drivers and internal communication between the PFC and LLC controllers. The auxiliary power supply can be eliminated by the integrated With an active X-CAP discharge function, low stand-in power consumption during burst mode is supported. A comprehensive set of built-in protection features can greatly enhance the system operation and Up to 40 different parameters ensure flexibility during system design and achieve optimal performance. All of these features make the IDP2303 a very competitive AC-DC contro Ller for PFC-HB LLC resonant converter.
DP LED power MOSFETs are used in this reference design. For LED TVs, a slim SMPS board is a desire and also a challenge due to the limitations of active and passive components. Compared to FullPAK MOSFETs which are used in conventional TV SMPS design, DPAK MOSFETs Have the advantage of being thinner and also easier to assemble. In this reference design, two IPD60R400CE are used in parallel for the PFC stage, and two IPD60R1K5CE are used in the LLC stage.
Figure 3. Outline drawing of DEMO-IDP2303-120W PFC+LLC converter
Figure 4. DEMO-IDP2303-120W PFC+LLC converter outsole view
Main indicators of DEMO-IDP2303-120W:
Figure 5. DEMO-IDP2303-120W PFC+LLC converter circuit diagram
DEMO-IDP2303-120W PFC+LLC Converter Bill of Materials (BOM):
Figure 6. DEMO-IDP2303-120W PFC+LLC Converter PCB Design (1)
Figure 7. DEMO-IDP2303-120W PFC+LLC Converter PCB Design (2)
Advanced and reasonable system design, stable display effect, easy installation and maintenance, high definition and high resolution. All-day work: vivid colors, high refresh rate, anti-static, dust-proof, good heat dissipation effect, and high cost performance. Display mode: move left and right , moving up and down, pulling the screen left, pulling the screen right, opening and closing in the middle, flickering, display and other methods. Using the program editing and playing software, you can edit, add, delete and modify text, graphics, images and other information through the mouse. The content of the arrangement is stored in the control card, and the information playback is automatically displayed in a loop according to the program table.
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