2W wireless power receiver optimised for wearables

21st July 2014

IDT

Nat Bowers

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Supplied in a compact package suited for small form factors such as wearable technology, Integrated Device Technology has claimed that the IDTP9026 is the world’s smallest 2W wireless power receiver and battery charger. The device has a solution size requirement of less than 30mm², compared to 65mm² for other available solutions. It is compliant with the Wireless Power Consortium’s (WPC-1.1) standards.

Using IDT's patented technology, the IDTP9026 eliminates the need for many passive components traditionally required. This enables OEMs to reduce costs and overall application area with no performance sacrifice. Featuring a high level of integration and lower external component count than competitive products (according to the manufacturer), the single-chip wireless power receiver and battery charger allows designers to minimise board area and bill of materials.

For maximum flexibility and control, the charging current, charging voltage, termination current and the thermal control loop can be programmed via the device's I²C interface. This provides data such as die and battery temperature, charging current and voltage, which can be used by the system’s application and user interface or for custom control schemes.

Arman Naghavi, Vice President and General Manager, Analog and Power Division, IDT, comments: “We strive to bring our customers innovative new products that help minimise expense and PCB real estate. The IDTP9026 helps designers reduce their design cycle-time with reduced costs and enhanced performance.”

IDT recommends the IDTP9038, the industry’s first Qi-compliant single-chip wireless power transmitter supporting a 5V input, to complete the system. Fully compatible, these devices are supported by the company’s extensive design-in collateral and experience.

Samples of the 2W wireless power receiver and battery charger are available now for select customers.