Description:The P9235A-RB is a highly integrated, magnetic induction, wireless power transmitter supporting up to 5W of total wireless system power. The P9235-RB offers a pre-programmed bootloader that must be used in conjunction with an external flash memory that contains control firmware. This architecture gives user a flexibility to change the firmware in the external flash to meet application specific requirements. IDT also provides firmware to implement standard WPC coil configurations such as the A11a.The P9235A-
A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital sections separate, and use a common ground point for the analog and digital grounds.
Use a high-quality, low-ESR capacitor (e.g., 10uF) for power decoupling, and place it as close to the device as possible. Ensure the power supply is stable and within the recommended voltage range.
The recommended clock frequency is 32.768 kHz, but the device can operate with a clock frequency range of 30 kHz to 100 kHz.
To configure the device for low-power mode, set the PDN pin low and ensure the device is in the shutdown state. This will reduce the current consumption to a minimum.
The maximum allowed capacitance for the output filter is 10uF. Exceeding this value may affect the device's stability and performance.
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P9235A-RBNDGI Overview
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