The P9028AC-0NBGI is a wireless power transmitter integrated circuit (IC) from Renesas Electronics America. This IC is designed for applications that utilize Qi wireless charging technology, allowing devices to be charged without the need for physical cables. It's a key component in wireless charging pads and transmitters.

Applications

• Wireless charging pads: Used in wireless charging pads for smartphones, tablets, and other mobile devices.
• Embedded wireless chargers: Employed in furniture, car consoles, and other embedded applications where wireless charging is desired.
• Wireless power transmitters: Utilized in various wireless power transmitter designs.

Features

• Qi compliant: Adheres to the Qi wireless charging standard, ensuring compatibility with Qi-enabled devices.
• Integrated MOSFET drivers: Includes integrated MOSFET drivers for efficient power transfer.
• Foreign object detection (FOD): Detects foreign metal objects on the charging surface to prevent overheating and damage.
• Over-voltage and over-current protection: Protects the device and the charging pad from over-voltage and over-current conditions.

Benefits

• Wireless charging: Enables convenient wireless charging of Qi-enabled devices.
• Improved efficiency: Integrated MOSFET drivers optimize power transfer efficiency.
• Enhanced safety: Foreign object detection and protection features ensure safe operation.
• Simplified system design: Integrated functionality simplifies the design of wireless charging systems.

Additional Details

The P9028AC-0NBGI typically operates at a specific frequency (e.g., 110-205 kHz) and supports a specific power output level (e.g., 5W, 10W, 15W). The IC requires external components, such as a resonant capacitor and a transmitting coil, to function properly. It is essential to consult the Renesas documentation for detailed information about the IC's specifications and application guidelines. Often, reference designs and evaluation boards are available from Renesas to aid in the design and development process.

When designing a wireless charging system using the P9028AC-0NBGI, it's crucial to carefully select the transmitting coil and resonant capacitor to optimize performance and ensure compliance with the Qi standard. Proper thermal management is also important to prevent overheating of the IC and other components.