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 Overvoltage Protection (OVP), 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 VCC OVP under feedback open condition
- Output short protection
- VCC 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 90VRMS to 305VRMS DC input with 127V to 432V
- High-Power-Factor (HPF) and low Total Harmonic Distortion (iTHD), across wide AC input voltage range (120VRMS to 277 VRMS) and wide output load range (33% to 100% of full load)
- No-load standby power less than 100mW with Active Burst Mode (ABM)
Publicado: 2020-10-12
| Actualizado: 2024-12-02