REFXDPL8221U100WTOBO1

ER 1811 PL21 1812 121550 XDPL8221 100 W reference board engineering report XDP digital power Ordering code: REF-XDPL8221-U100W About this document Scope and purpose This document contains the specification, schematic, Bill of Materials (BOM) and measurement results of the 100 W form-factor board as LED driver, using the Infineon XDPL8221 dual-stage multi-mode flyback + PFC combo controller. Intended audience This document is intended for anyone wishing to design high-performance dual-stage digital flyback AC-DC converters for LED lighting based on the PFC + flyback combo controller XDPL8221. Table of contents About this document ....................................................................................................................... 1 Table of contents ............................................................................................................................ 1 1 Introduction ............................................................................................................................. 2 2 Design features ......................................................................................................................... 3 3 Design specification ................................................................................................................... 4 4 Schematic and description ......................................................................................................... 6 5 PCB layout ................................................................................................................................ 7 6 XDPL8221 100 W reference board measurement results ................................................................. 8 6.1 Operating window .............................................................................................................................................. 8 6.2 Performance ....................................................................................................................................................... 8 6.3 0 V to 10 V linear dimming ................................................................................................................................ 14 6.4 0 V to 10 V eye-adapted dimming .................................................................................................................... 15 6.5 Time-to-light ..................................................................................................................................................... 16 6.6 Standby power consumption .......................................................................................................................... 16 6.7 EMI performance .............................................................................................................................................. 17 7 Bill of Materials ........................................................................................................................ 18 7.1 Transformer specification ................................................................................................................................ 27 Revision history............................................................................................................................. 29 Engineering Report Please read the Important Notice and Warnings at the end of this document V 1.0 www.infineon.com/XDP page 1 of 30 2019-02-05 XDPL8221 100 W reference board engineering report XDP digital power Introduction 1 Introduction The XDPL8221 100 W reference design is a digitally configurable LED driver that has a universal input of 90 to 305 V AC or V DC wide output load range of 16 to 48 V DC and isolated dimming interface (with CDM10VD). Please refer to the next page for the main design features of this board based on the XDPL8221 and CDM10VD. Note: The 100 W reference design is ready for evaluation without the need for any pre-programming by the user, as the XDPL8221 chip on the PCB has already been burned with the default full set of working configuration parameters. Please connect the AC input, LED output and dimming input as shown in Figure 1, for the test set-up. Once the XDPL8221 IC controller on the reference board is changed to a new one, the 100 W reference board parameters must be burned again because the default parameters in the XDPL8221 are for the 50 W reference board. LED V CC output UART Secondary- N AC GND side UART L input input PE XDPL8221 programming Dimming connector input Figure 1 XDPL8221 100 W reference board Engineering Report 2 of 30 V 1.0 2019-02-05