IDT (www.idt.com, Korea Country Manager: Sang-yeop Lee), a leading analog and digital company in the core mixed-signal semiconductor solutions market, today announced the industry's first single-chip wireless charging transmitter solution supporting 5V input based on the Qi standard. IDT's new wireless charging transmitter solution features exceptionally high levels of integration, allowing customers to develop USB-powered wireless charging bases using 75% fewer ICs compared to competitor solutions. IDT's transmitter solution is ideal for wireless charging systems that utilize standard power ports while minimizing system complexity and physical size.

The IDTP9038 is a single-chip wireless charging transmitter IC compatible with the WPC (Wireless Power Consortium) 1.1 'Qi' standard for A5 and A11 coil arrangements, enabling OEMs to develop wireless charging base products that are fully compatible with any Qi-based portable devices. IDT's new transmitter solution operates with 5V input and can be powered through all standard USB ports, USB wall adapters, or conventional 5V adapters. These ports and adapters are already widely used and included in many popular portable electronic devices, which simplifies user experience and reduces solution costs.

Unlike conventional solutions requiring four or more ICs, the IDTP9038 is designed with just one highly efficient IC. This allows system designers to minimize the complexity of wireless charging systems, reduce PCB routing constraints, and simplify the bill-of-materials (BOM).

Arman Naghavi, Vice President and General Manager of IDT's Analog and Power Division, states, "IDT has led this market with the most highly integrated and feature-rich wireless charging solutions in the industry. The IDTP9038 enables customers to develop USB-powered wireless charging mats using the same USB adapters they already use with their portable devices or connect to notebooks or notebook docking stations. In particular, IDT's new highly integrated wireless charging transmitter solution offers customers the advantage of minimizing system complexity, alleviating PCB routing concerns, and simplifying BOM—these are key factors that contribute to successful product development and ultimately accelerate time-to-market," he emphasized.

The IDTP9038 features an embedded microcontroller and an integrated full-bridge inverter with low-resistance FETs, delivering unprecedented flexibility, minimized PCB area, and superior power transfer efficiency.

IDT's proprietary control circuitry, which is patent-pending, delivers world-class EMI performance 15dB below CISPR requirements, reducing concerns about crosstalk with other sensitive electronic devices. This transmitter solution supporting 5V input is characterized by fully controlled power transfer and USB connectivity that meets BCS 1.2 (D+/D- sensing) requirements for additional safety assurance.

In addition, the IDTP9038 supports IDT's proprietary high-power transmission mode, capable of delivering up to 60% more power than specified by the Qi standard. For example, when using the IDTP9038 transmitter together with IDT's wireless charging receiver, power transmission of up to 8 watts is possible. This enables OEMs to dramatically reduce wireless charging time between portable devices equipped with IDT solutions and charging mats.