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Dialog, Energous launch first single chip wireless charging

New Products |
By Nick Flaherty


The DA4100 is the first chip to be made available following the announcement of Dialog Semiconductor’s strategic partnership and investment in Energous Corporation in November 2016. The investment and partnership saw Dialog become the exclusive component supplier of WattUp ICs and allows Energous to access Dialog’s sales and distribution channels to accelerate market adoption. 

 Applications include the wireless charging of low-power, battery-powered devices, such as wearables, fitness trackers, hearables, hearing aids, Bluetooth trackers, smart pens and other devices.

We’re pleased to see the first results of our partnership with Energous Corporation in the form of the WattUp wireless power RF-transmit IC,” said Mark Tyndall, Senior Vice President, Corporate Development and Strategy, Dialog Semiconductor. “We partnered with Energous because we see the potential of their technology to revolutionize the wireless charging landscape, and we believe this new IC will demonstrate how our partnership can transform device charging.”

“This new IC will be the backbone of transmitters moving forward and our efforts to miniaturize and reduce costs will allow WattUp transmitters to be included in-the-box with many consumer devices,” said Stephen R. Rizzone, president and CEO of Energous. “By combining multiple discrete components present in our early reference designs into a single silicon chip, we can significantly reduce the cost and silicon footprint requirements of our transmitters while decreasing the bill of materials for our customers.”

The WattUp wireless power RF-transmit IC integrates an ARM Cortex M0+ core, RF transmitter and power management into a single 7mm x 7mm IC. It also features on-chip DC-DC conversion and software, providing  integration to Dialog’s SmartBond family of highly integrated, low power BLE SoCs. The new IC minimizes required board space, enabling ultra-small charging transmitters and simplifying WattUp’s wireless power transmitter system implementation.

A complete Near Field WattUp system adds a WattUp wireless power receiver (DA2200 or DA2210) , a DC-DC (buck/boost) converter,  Li-Ion/Li-Poly battery charger and an optional Bluetooth Low Energy communication link (DA14680 or DA14681) which supports battery status communication between the WattUp receiver and transmitter.  The same link can be used to provide the user with full power management capabilities using the WattUp Application running on a Smartphone or tablet.  Antennas are fabricated using low-cost PCB material.

Evaluation kits of the DA4100 WattUp wireless power RF-transmit IC are sampling now with details at dialog-semiconductor.com/wireless-charging


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