Silanna plans own USB-PD controller, wall socket design

September 05, 2021 // By Nick Flaherty
Silanna plans own USB-PD controller, wall socket design
A USB-PD chip and wall socket design being developed by Silanna Semiconductor has the potential to make power chargers obsolete

Power chip developer Silanna Semiconductor is developing its own controller chip for the USB Power Delivery (USB-PD) protocol and working on a USB charger design that will fit into an existing wall outlet

Having its own USB-PD controller chip will put the company in competition with Infineon who’s Cypress chip is widely used, as well as Chinese supplier Weltrends.

“We have a future roadmap to offer our own PD controller for end to end,” said Ahsan Zaman director of marketing for AC-DC at Silanna. “We really think we will have something to demonstrate by the end of the year for customers."

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Last month the company launched an AC-DC ‘systemin-package’ to simplify the design of chargers  and cut the no load power consumption, a key consideration for wall socket designs that are effectively ‘always on’.

A USB charger with multiple outlets as a drop in replacement for existing power sockets is a  multi-billion dollar market and opens up the potential for adding sensors and powerline data connections for smart homes and offices. However this needs a smaller design with low standby power and a low thermal profile.

“We have a couple of active products for outlets wall plug adaptors,” said Zaman.

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