Wireless Charging

Wireless Charging

WattUp® Wire-Free Charging

An award-winning, wire-free charging technology that will transform the way consumers and industries charge and power electronic devices at home, in the office, in the car and beyond.

WattUp® is a revolutionary radio frequency (RF) based charging solution that delivers intelligent, scalable power via radio bands, similar to a Wi-Fi router. WattUp differs from older wireless charging systems in that it delivers power at a distance, to multiple devices - thus resulting in a wire-free experience that saves users from having to plug in their devices. WattUp technology is provided to Dialog under license from Energous Corporation.

WattUp is a fully scalable wireless charging technology.  It is capable of supporting wire-free charging from Near Field (over a few millimeters), through to Mid Field (2 to 3 feet) and all the way to Far Field up to 15 feet.  Ultra-small receivers are achieved through the use of RF-based antennas rather than the more traditional coil-based solutions, expanding wireless charging into wearables, hearables and other small, low-power devices.  WattUp also provides greater freedom-of-placement while charging meaning it is less dependent on placing the device under charge in the same plane as the transmitter, further reducing design constraints.

Wireless Charging Product Portfolio
Product Description Applications
DA4100 Fully integrated WattUp power transmitter IC which operates directly from 3.3V. Requires only an external crystal, power amplifier and transmit antenna to complete a Near Field WattUp power transmitter design. Fitness Bands | Hearables | Hearing Aids | Bluetooth Headsets | Bluetooth Trackers | Smart Pens | Remote Controls
DA2210 / DA2223 Wireless power RF-to-DC receivers which can be connected to 1 to 4 antennas. Antennas can be small enough to fit into in-the-ear hearing aids. Fitness Bands | Hearables | Hearing Aids | Bluetooth Headsets | Bluetooth Trackers | Smart Pens | Remote Controls
DA3210 Single channel high efficiency CMOS RF power amplifier. With gain adjustable through an SPI compatible serial interface, input and output power detectors that enable closed loop power control and an integrated temperature sensor, DA3210 is optimized for the WattUp wireless power transmitters and completes the Near Field WattUp power transmitter system. Fitness Bands | Hearables | Hearing Aids | Bluetooth Headsets | Bluetooth Trackers | Smart Pens | Remote Controls | Smart Glasses

Near Field WattUp System

The Near Field WattUp system is comprised of a WattUp wireless power transmitter (DA4100), a WattUp wireless power amplifier (DA3210), a WattUp wireless power receiver (DA2210 or DA2223), a DC regulator, a Li-Ion/Li-Poly battery charger and an optional Bluetooth® Low Energy communication link (DA14680*, DA14681* or DA14585) 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, flexible PCB or sheet metal.

Near Field WattUp System
 
*DA14682 and DA14683 are recommended for new designs.

● WattUp RF-transmitter System-on-Chip (SoC) ● Integrated Power Management ● Integrated ARM Cortex® M0+ processor, RAM, ROM ● Embedded secure element for device authentication

● WattUp RF-to-DC wireless power receiver IC ● Supports connection of up to 4 antennas ● External RF input matching

● WattUp RF-to-DC wireless power receiver IC (small form factor - WLCSP version of DA2210) ● Supports connection of up to 4 antennas ● External RF input matching ● 1.69mm x 1.39mm max, compared to 3mm x 3mm for DA2210 ● Less than 0.5mm thin

● WattUp high power, high efficiency single channel CMOS RF power amplifier ● Adjustable gain through SPI compatible serial interface ● Input and output power detector ● Integrated temperature sensor

Power management of the device-under-charge provided using the WattUp App

WattUp Near Field Transmitter
 

Resources

Product Briefs and Summaries

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