The WLC1150-68LQXQT from Infineon Technologies is a Wireless Charging Transmitter IC that supports WPC Qi and other proprietary specifications. It requires an input voltage of 4.5 - 24 V and delivers an output power of 50 W. This transmitter IC is engineered with advanced features addressing critical system needs and offers a cost-effective solution for a wide range of applications requiring high output power. It operates in Infineon's high-power proprietary protocol mode, enabling it to deliver a robust output power to charge various devices. This transmitter IC is well-equipped to meet the demands of power-hungry devices, ensuring efficient and reliable charging performance. It is designed to address critical system requirements and tackle challenges such as thermal management, electromagnetic interference (EMI), foreign object detection (FOD), high efficiency, and inverter control to ensure optimal performance and safeguard the charging system against potential issues. This IC supports input power from either USB PD/PPS or fixed input from a DC power supply, thereby eliminating the need for a front-end DC-DC converter. It offers extensive programmable features to provide flexibility in creating distinct wireless transmitter solutions.
This charging IC includes an on-chip 32-bit Arm Cortex-M0 processor, accompanied by 128 KB of flash, 16 KB of RAM, and 32 KB of ROM, thereby empowering users to develop customized applications with ample space for programmability. It also incorporates a range of analog and digital peripherals, including ADCs, PWMs, and timers, enabling seamless integration and comprehensive control over the charging system. This transmitter IC uses integrated I2C and UART interfaces for remote monitoring and control. It is available in a surface-mount package that measures 8 x 8 mm and is ideal for wireless charging pads with a proprietary protocol (50 W), vacuum cleaners, robotics and drones, furniture and home goods, docking stations, smartphone chargers with Qi EPP (up to 15 W), and industrial wireless charging applications.