Infineon Technologies XDPL8218 | Demoboard ER_1803_PL21_1804_055653

Description

This document is an engineering report of a reference design named REF-XDPL8218-U40W, which is based on Infineon’s XDPL8218 high power factor flyback controller and IPD80R900P7 MOSFET. This is a reference design for a 40 W front-stage high power factor flyback converter with secondary side regulated constant voltage output of 54 V, which can be used to supply a second-stage constant current converter for LED lighting application.

Features

• Secondary Side Regulated (SSR) Constant Voltage (CV) output
• Supports Universal input with 90 Vrms to 305 Vrms and DC input with 127 V to 432 V
• High Power Factor(HPF) and low Total Harmonics Distortion (iTHD), across wide AC input voltage range (120 Vrms to 277 Vrms) and wide output load range (33% to 100% of full load)
• High efficiency with Quasi-Resonant Mode with 1st valley switching (QRM1) operation at high output power
• High efficiency with frequency controlled Discontinuous Conduction Mode (DCM) operation at medium output power
• Low standby power typ. < 100 mW with Active Burst Mode (ABM)
• Input overvoltage and undervoltage (Brown-in/Brown-out) protection
• Power limitation during brown-out, to better protect primary components e.g. flyback MOSFET from overheating and magnetics from saturation.
• Output LED power limitation and output undervoltage protection, under single fault condition where the second-stage constant current DC-DC converter MOSFET drain pin is shorted to source pin.
• Output and Vcc overvoltage protection, under feedback open condition
• Output short protection
• Vcc undervoltage protection
• Configurable parameters, e.g. brown-out power limitation slope, protection thresholds and reaction (autorestart/latch)
• Low Bill Of Materials (BOM)

Typical applications

• LED lighting

More information

• Datasheet