Infineon Technologies XDPL8219 40W Reference Design

Infineon Technologies XDPL8219 40W Reference Design is designed for a high-power-factor flyback converter with 54V Constant Voltage (CV) output. This CV output is not used directly to drive LEDs and is to be converted to Constant Current (CC) output by a second stage DC-DC switching to a linear regulator. This reference design offers high efficiency with Quasi-Resonant (QR) mode, switching in valley n (QRMn), across wide input and output load range. This XDPL8219 reference design features input Over-Voltage Protection (OVP), input Undervoltage Protection (UVP), and output short protection.

Features

Secondary-Side Regulated (SSR) Constant Voltage (CV) output
High efficiency with Quasi-Resonant (QR) mode, switching in valley n (QRMn), across wide input and output load range
Input overvoltage Protection (OVP) and input Undervoltage Protection (UVP)
Power limitation during brown-out, to better protect primary components:
- The flyback MOSFET
- Overheating and magnetics from the saturation
Output power limitation and output UVP, under single fault condition where the second-stage constant current DC-DC converter MOSFET drain pin is shorted to the source pin
Output and V_CC OVP under feedback open condition
Output short protection
V_CC UVP
Configurable parameters, e.g., brown-out power limitation slope, protection thresholds, and reaction (auto-restart/latch)
Reporting of system information:
- Input voltage, line frequency, controller temperature, input voltage loss, and error code of last triggered protection, via unidirectional UART communication

Specifications

Supports universal input with 90V_RMS to 305V_RMSDC input with 127V to 432V
High-Power-Factor (HPF) and low Total Harmonic Distortion (iTHD), across wide AC input voltage range (120V_RMS to 277 V_RMS) and wide output load range (33% to 100% of full load)
No-load standby power less than 100mW with Active Burst Mode (ABM)

Infineon Power and Sensing Selection Guide

Infineon Technologies XDPL8219 40W Reference Design

Features

Specifications

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