PFC IC designed for compact consumer products and PCs
Power Integrations introduced HiperPFS-2, a new family of high-efficiency, active-PFC ICs for offline applications from 100 W to 380 W. HiperPFS-2ICs combine a boost PFC controller, driver, PFC power MOSFET, PFC diode and protection circuits in one package, enabling exceptionally compact designs ideal for small-form-factor power supplies as used in mini-tower PCs, all-in-one PCs, game console adapters and TVs.
The HiperPFS-2 controller uses a variable-frequency CCM algorithm providing up to 97% efficiency across the load spectrum 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 just 60mWto a typical high-power adapter’s 300mW no-load budget. Conducted and radiated EMI are minimized due to the integrated soft-recovery diode and short parasitic inductance loop which results from the highly integrated, compact design.
Key applications for HiperPFS-2 ICs include TVs, PCs, game console adapters, telecoms and industrial products such as blowers, motor drives and chargers. A new reference design based on the HiperPFS-2 IC,DER-294, describes a 350 W output power boost CCM PFC board with wide range AC input. DER-294 is able to attain >97% efficiency for 230VAC across a wide load range and > 0.9 PF at 20% load.
HiperPFS-2 devices are sampling now in two of Power Integrations’ innovative eSIP-16 packages: the standard eSIP16-D (H package) and the L-bend eSIP16-G (L package) for low-profile applications. Both feature an isolated metal heatsink pad for simple and easy mounting. HiperPFS-2 family devices are priced from$0.959 each in 10K quantities.