EVAL_16W_66V_BCK_CE Infineon

AN 201610 PL52 003 16 W single end cap T8 lighting demo board Using IPN60R3K4CE (CoolMOS CE in SOT-223 package) About this document Scope and purpose This document is for a 16 W/270 mA single stage single end cap T8 LED lamp reference using average current control and a cascaded structure for a floating bulk topology design using the Infineon LED driver ICL8201 and CoolMOS IPN60R3K4CE (SOT-223). It has high efficiency, high PFC and various protection features with a very low external component count. The ICL8201 also supports a simple buck inductor without an auxiliary winding. Intended audience This document is intended for users of the ICL8201 who wish to design very low cost, high efficiency, high power factor LED drivers in a single end cap T8 form factor for LED lamps. It also showcases the use of CoolMOS CE in a SOT-223 package. Figure 1 ICL8201 demo board Application Note 2.0 www.infineon.com/16w-led-driver-eval 10/14/201616 W Single End Cap T8 lighting demo board Using IPN60R3K4CE (CoolMOS CE in SOT-223 package) Board introduction Table of Contents About this document .............................................................................................................................................1 Table of Contents ..................................................................................................................................................2 1 Board introduction ............................................................................................................................3 2 Board specifications...........................................................................................................................4 3 Build information...............................................................................................................................5 3.1 Schematic ................................................................................................................................................5 3.2 Board layout ............................................................................................................................................5 3.3 Bill of materials........................................................................................................................................6 3.4 Inductor specification .............................................................................................................................7 4 Test results.........................................................................................................................................8 4.1 Connections and initial power-up ..........................................................................................................8 4.2 Startup .....................................................................................................................................................8 4.3 Switching waveform................................................................................................................................9 4.4 Output waveform ....................................................................................................................................9 4.5 Input waveform .....................................................................................................................................10 5 Protections.......................................................................................................................................11 5.1 Output short protection........................................................................................................................11 5.2 Open output protection ........................................................................................................................12 5.3 Short winding protection......................................................................................................................13 6 Test results.......................................................................................................................................14 7 Thermal performance ......................................................................................................................15 8 Conclusion .......................................................................................................................................16 9 References .......................................................................................................................................17 Revision History...................................................................................................................................................18 Application Note 2 2.0 11/29/2016