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Active-PFC IC combines gate driver, MOSFET in small package

06 Jun 2013

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Power Integrations has unveiled its HiperPFS-2 family of active-PFC (power-factor correction) ICs. The company's latest ICs combine a boost controller, gate driver, MOSFET, and diode in a small single-in-line package. The chip aims to reduce layout size and eases compliance with energy-efficiency standards for offline applications ranging from 100W to 380W.

The controller uses a variable-frequency CCM (continuous conduction mode) algorithm to achieve up to 97 per cent efficiency across the load spectrum from 20 per cent to 100 per cent and power-factor correction of greater than 0.9 at 20 per cent load with a 265VAC input for designs over 200W.

HiperPFS-2 devices can be used in a wide range of products, including LCD TVs, PCs, notebooks, appliances, pumps, motors, fans, printers, and LED lighting. Outfitted with line-connected sense elements, the PFC controller contributes just 60mW 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.

The devices are sampling now in a standard eSIP16-D (H package) and L-bend eSIP16-G (L package) for low-profile applications. Both package options have an isolated metal heat sink pad.

Datasheet for the HiperPFS-2 PFC controller can be downloaded here.

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