WPC & PMA compliant IC aids in mobile device development

25th February 2014

IDT

Staff Reporter

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Billed as the industry's first dual-mode, wireless power receiver compatible with both the WPC and PMA standards, the IDTP9023 has been unveiled by IDT. The single-chip wireless power reciever enables OEMs to use a single wireless power receiver IC to develop mobile devices fully compatible with the latest versions of both Qi and PMA charging bases.

WPC 1.1 and PMA 1.1 compliant, the device incorporates a synchronous full-bridge rectifier, high-efficiency synchronous buck converter, and embedded microcontroller. These components are used to optimise power delivery to the mobile device’s load, while minimising application footprint, component count, and thermal dissipation. The device supports all WPC and PMA receiver coils, as well as proprietary and PCB-based coils for maximum versatility in a wide range of applications. Suitable applications include smart phones, tablets, sleeves, and other accessories.

The embedded MCU provides a variety of control features and status indicators beyond the Qi and PMA specifications, thus enabling the development of sophisticated power delivery schemes and user interfaces. Enhanced communication is achieved via a proprietary transmitter/receiver back-channel communication protocol, while an integrated I²C interface provides access to charging status and proprietary alignment guide information.

In addition, flexible firmware and MCU programmability enables tuning the coil drive circuitry to maximise power transfer efficiency for various applications and usage scenarios. With excellent power efficiency and compliance to the latest WPC and PMA standards, the device offers a quick battery charge with any Qi- or PMA-compatible charging base. For applications not requiring dual-mode capability, a Qi-only version is available as the IDTP9022.

“We are proud to continue our wireless power technology leadership by announcing the industry’s first single-chip WPC 1.1 and PMA 1.1 dual-mode wireless power receiver solution,” said Arman Naghavi, vice president and general manager of the Analog and Power Division at IDT. Following the industry’s first dual-mode solution IDT announced last year, our new device gives customers a clear upgrade path to meet the latest magnetic induction standards requirements and offer consumers full compatibility with any Qi- or PMA-certified charging base currently on the market. The chip’s high-efficiency and small application footprint make it well-suited for tomorrow’s ultra-thin, lightweight, and compact portable devices and accessories.”

Available in a 3.9 x 4.1mm WLCSP package, the IDTP9023 and IDTP9022 are currently sampling.