New PFC IC features high PF at light load, low standby power consumption, and supports 305-VAC input

Power Integrations,
the leader in high-voltage integrated circuits for energy-efficient power
conversion, announced its HiperPFS-4 family
of power factor correction (PFC) ICs. The new device family serves applications
targeting excellent efficiency and power factor performance at both full-load
and light-load conditions. HiperPFS-4 devices
incorporate a 600-V MOSFET (suitable for 305-VAC input) and a high-efficiency,
variable-frequency, CCM PFC controller into a single, compact, electrically
isolated, heatsinkable package. The IC family delivers high power factor, low
THD, and uniformly high efficiency across a wide output load range, allowing
OEMs to meet the demanding 80 PLUS Platinum and Titanium power supply


HiperPFS-4 ICs
achieve a high power factor of above 0.95 and low THD even at 20% of rated
load. The devices also meet the stringent surge requirements of major computer
and entertainment equipment providers, such as the 1-second 410-VAC input test,
which ensures field reliability and robustness against voltage swells and


The new HiperPFS-4
ICs suit enclosed designs up to 300 W, open-frame power supplies of up to 400 W, and high-line applications up to 550 W. Protection features include
UVLO, UV, OV, OTP, brown-in/out, cycle-by-cycle current limit, and power limit. HiperPFS-4 ICs consume less than 60 mW at 230 VAC while
regulating output at no-load and less than 20 mW in sleep mode.

Edward Ong, product marketing manager at Power
Integrations: “The HiperPFS-4 product family
offers very high efficiency and power factor plus low THD across a wide load
range. The benefits afforded by the unique frequency-sliding control technology
enable HiperPFS-4 designs to deliver very high efficiency down to very light
load — important when targeting EU CoC requirements
that include a 10% load efficiency measurement. The 600-V integrated power MOSFET
and sophisticated protection features make the IC family ideal for use in
regions where input voltage fluctuations can be severe. HiperPFS-4 devices
provide safe PFC operation with a good margin at 305-VAC input for data centers
and commercial LED lighting. Other applications include refrigerators (which
increasingly contain high PFC specification requirements), cordless tool
chargers, and eBike battery chargers.”     

Available for high- and low-line applications, HiperPFS-4 ICs are available in thermally-efficient
eeSIP packaging, which simplifies heatsink mounting. Devices cost $1.46 in 10,000-piece
quantities. Please visit