The new chip from ST eliminates vampire power in appliances, lighting and industrial equipments. Vampire power, also known as standby power refers to the electric power consumed by electronic and electrical appliances while they are switched off (but are designed to draw some power) or in a standby mode.
According to the press release, “ST’s new VIPer0P IC helps reduce wasted power and CO2 emissions by enabling effective zero-power standby in appliances. It is a high-voltage converter with jittered fixed-frequency current-mode pulse width modulation (PWM) control for simplified EMI compliance and zero-power mode (ZPM) with an astounding < 4 mW (at 230 VAC) consumption. VIPer0P can enter and exit ZPM when the low voltage input/output pins (OFF or ON) are pulled to ground so a small and inexpensive safety extreme low voltage (SELV) switch can replace the bulky mains switch.”
The VIPer0P embeds a set of protections, including over-current protection (OCP), VCC clamp, maximum duty cycle and flux runaway, to enable a more robust and safer SMPS design, as stated in the release.
Further in an interview, Matteo Lo Presti, group VP, Industrial and Power Conversion Division, STMicroelectronics, commented, “Designers at the world’s leading appliance brands rely on our VIPer avalanche- rugged integrated Power ICs to meet the toughest eco-design specifications. VIPer0P now adds advanced zero-power technology to the superior ease of design, energy efficiency, and ruggedness that characterise the VIPer family.”
Referring to the news release, the VIPer0P chip is now in volume production in the SO16N surface-mount package and is priced at US$ 0.54 for orders of 1000 pieces.