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Semtech Demonstrates Ultra-High Power 40W Wireless Charging Technology at CES 2017

LinkCharge – 40 Series is a backwards-compatible and highly efficient wireless charging solution that supports Qi standards in a small form factor

Semtech Corporation (Nasdaq:SMTC), a leading supplier of analog and mixed-signal semiconductors, today announced its advanced, ultra-high power LinkCharge™ 40 Series of wireless charging transmitters and receivers that support applications requiring up to 40 watts of power.

“The addition of this 40-watt, highly differentiated, ultra-high power wireless charging capability to Semtech’s LinkCharge platform makes our robust and scalable wireless charging technology available for products of all sizes and power requirements,” said Ruwanga Dassanayake, Product Line Manager for Semtech’s Power and High-Reliability Products Group. “One of the unique features that sets LinkCharge 40 apart is that its transmitter is backwards compatible, supporting Qi-enabled phones while maintaining small form factor at both ends of the solution.”

The high power system architecture of the LinkCharge 40 uses a flexible firmware-based approach and proprietary communication protocol between the transmitter and receiver at 40 watts and uses the WPC (Wireless Power Consortium) or Qi standard protocol at lower power.

“Implementations of the latest Qi specification deliver up to 15 watts of wireless power,” said Menno Treffers, Chairman of the Wireless Power Consortium. “Semtech now demonstrates that it is possible to deliver considerably more power while maintaining compatibility with existing Qi power receivers. We welcome this extension to the Qi ecosystem.”

Key Features of the LinkCharge 40
– 40 watts of output power with proprietary communication protocol
– Backward compatible with Qi transmitter up to 15 watts of power
– High DC-DC efficiency at 85 percent
– Flexible, programmable firmware-based solution for quicker time-to-market and to accommodate the evolution of industry standards
– 19Vout / 2Amps at the receiver
– Capable of supporting multiple coil configurations
– Supports dynamic loads

About Semtech’s Innovative LinkCharge Platform
Semtech’s LinkCharge wireless charging platform provides a range of solutions to enable wireless power in next-generation products for consumers, infrastructure and industrial applications. It includes the LinkCharge 40 Series, the LinkCharge 20 Series and the LinkCharge CT (counter top), an out-of-box-ready infrastructure wireless charging system for use in public, enterprise and consumer settings. The LinkCharge platform is compatible with the major industry standards ensuring end products can quickly charge any wireless charging-equipped device even as the industry adoption continues to grow and evolve. More information about LinkCharge platform and the rest of Semtech’s wireless charging solutions is available at

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