Kit enables sub-3W wireless charging

Graham Prophet -May 20, 2016

This product is featured in EDN's Hot 100 products of 2016. See all 100 here.
This reference kit aims at designing wireless charging into smartwatches, fitness monitors, and other wearables. IDT’s wireless power reference kit comprises a Qi-based transmitter and receiver for designs requiring 3W or less.

Suited for applications ranging from 0.5-3W, the transmitter (P9235A-R) and receiver (P9027LP-R), support three different coil size options for various applications, form factors, and power levels. IDT already has a similar kit at the 5W power level. “With the low-power kit, we want to follow the success of our 5W kit, which opened the market to customers who don’t have the expertise, budget, or time to develop a custom solution.”
Reference design materials include user manuals, layout guides, layout instantiation modules, schematics, bill-of-materials (BOM), and Gerber files. Delivering peak 80% system efficiency at 3W, the kit offers seamless integration with the drop-in reference layout provided, and an optimized thermal design.
The wireless power kit containing the transmitter, receiver, and additional coils is available now for $70.



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