STMicroelectronics EVL101G50FLT HPF Flyback Controller
STMicroelectronics EVL101G50FLT HPF Flyback Controller is a 50W High-Power-Factor (HPF) quasi-resonant flyback converter with isolated secondary-side regulation for both constant voltage and constant current modes. This controller features a 90VRMS to 265VRMS input voltage range, a 45Hz to 66Hz frequency range, and a 50V output voltage (Iout< 1A). The controller board is based on HVLED101 and SEA05LTR. This controller ensures high efficiency and compactness through a sensor-less GaN transistor and a planar transformer. The EVL101G50FLT controller board is used as a 50 W single-stage LED driver or PSU. Typical applications include LED control gears, AC-to-DC adapters, and Motor control pre-regulators.
Features
- 90VRMS to 265VRMS input voltage range
- 45Hz to 66Hz frequency range
- 50V output voltage (Iout< 1A)
- 1A output current (LED voltage between 20V and 48V)
- Average efficiency (4 points) > 91%
- Efficiency >50% in stand-by (Pout=240mW)
- High power factor, low THD:
- PF >0.99 / THD <5% at full load
- PF >0.99 / THD <7% at 1/3 load (230VAC)
- Dual layer PCB (Size 5cm x 10cm x 1.8cm), no heat sink
Schematic Diagram
Board Connections
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