Power Integrations PFS5178F | Demoboard DER-977

Description

500 W Power Factor Correction (PFC) front end using two PowiGaN-based HiperPFS-5 ICs ( PFS5178F) in parallel, each operating as a 250 W PFC stage. This design is intended as a general purpose platform that operates from universal input line voltage (90-265 VAC) and provides a regulated 400 V DC output voltage and 500 W continuous output power.

Features

• Highly integrated, low component count, low-cost PFC using 2 PFS5178F ICs in parallel
• Low-cost standard output rectifier (MUR460)
• Power Integrations INSOP-28 Low profile SM package
• EN61000-3-2 Class-D compliant
• High PFC efficiency
• Enhanced light load power factor (PF)
• PF >0.9 at 20% load and 230 VAC, 50 Hz input
• PF >0.95 at 50% load
• Frequency sliding maintains high efficiency across load range

• 95% from 10 to 100% load (115 VAC and 230 VAC input)

• Feed forward line sense gain – maintains relatively constant loop gain over entire operating voltage range
• Excellent transient load response
• Frequency adjusted over input line voltage and load
• Spread-spectrum across >60 kHz window simplifies EMI filtering requirements

Typical applications

• Industrial and appliance
• Video game consoles
• High-power LED lighting
• High-power adaptors and USB PD

More information

• Datasheet
• IC product information