STMicroelectronics EVL6462A-250W-M Demonstration Board
STMicroelectronics EVL6462A-250W-M Demonstration Board is a 250W transition‑mode power factor correction (TM PFC) design built around the compact L6462A controller. The board enables a wide 90VAC to 264VAC input range and a regulated 400VDC output. EVL6462A-250W-M's architecture prioritizes high efficiency and low input‑current distortion, achieving a peak efficiency of 97.4% and THD below 5% at full load, while maintaining compliance with EN61000‑3‑2 Class‑D, JEITA‑MITI Class‑D, and EN55022 Class‑B EMI standards.
The STMicroelectronics L6462A’s integrated features allow for minimal component count and simplified design, making the board suitable for AC‑DC front‑end stages in applications requiring high power‑quality performance. The layout uses a traditional boost PFC stage with carefully designed EMI filtering, transient protection, and inrush‑current limiting, resulting in reliable operation across all conditions. The single‑sided FR‑4 PCB, compact footprint, and robust protection components make the EVL6462A-250W-M demo board an effective reference platform for evaluating TM PFC behavior and developing efficient SMPS systems up to a few hundred watts.
Features
- Based on the L6462A transition-mode power factor controller
- 250W wide-range input PFC preregulator
- Universal 90VAC to 264VAC input voltage range with 47Hz to 63Hz frequency
- 400VDC regulated output voltage
- 250W maximum output power
- Total Harmonic Distortion (THD)
- <5% at full load
- <15% down to 20% load
- 97.4% peak efficiency
- >0.9 power factor from full load to 30% load
- Single-sided PCB, 70µm, FR-4, 110mm x 88mm (active area 90mm x 88mm)
- Mains harmonics meet EN61000-3-2 Class-D and JEITA-MITI Class-D
- EMI per EN55022 Class-B
Applications
- PFC pre-regulators for:
- AC-DC adapters and other EN61000-3-2 or JEITA-MITI compliant applications
- LED-based lamps and luminaires
Resources
Related Controller
STMicroelectronics L6462A Boost PFC Controller
A control IC that is suitable for building cost-sensitive, energy-efficient solutions.
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可簡易替換的多樣化產品，適合廣泛使用的通用類比IC、獨立元件及序列EEPROM。