Integrated PFC IC for compact consumer products

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By eeNews Europe

The HiperPFS-2 controller uses a variable-frequency CCM algorithm providing up to 97% efficiency across the load range from 20% to 100% and power factor greater than 0.9 at 20% load with 265 VAC input for designs over 200 W. Including line-connected sense elements, the new device contributes 60 mW to a typical high-power adapter’s 300 mW no-load budget. Conducted and radiated EMI are minimised due to the integrated soft-recovery diode and short parasitic inductance loop which results from the highly integrated, compact design.

Power Integrations claims the HiperPFS-2 to be the most highly integrated PFC solution available, that enables designers to cost-effectively meet the 80 PLUS Gold and Platinum efficiency standards in space-constrained PCs. The device’s no-load performance simplifies design and reduces cost in high-power adapter applications targeting aggressive standby or no-load specifications.

Key applications for HiperPFS-2 ICs include telecoms and industrial products such as blowers, motor drives and chargers. A new reference design based on the HiperPFS-2 IC, RDR-294, describes a 350-W output power boost CCM PFC board with wide range AC input. RDR-294 is able to attain over 97% efficiency for 230 VAC across a wide load range and over 0.9 PF at 20% load; see

HiperPFS-2 devices come in Power Integrations’ eSIP-16 package with an isolated metal heatsink pad for simple and easy clip-mounting, and cost from $0.959 (10,000).

Power Integrations,


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