Hi Ritesh,
Thanks for your interest in the PTN5110(N)DHQ!
Here are the answers to your questions:
1. Yes, by default safe 5V is provided for backward compatibility.
2. NXP recommends using either Kinetis, LPC or i.MX RT MCUs to execute PD firmware which is part of the MCUXpresso SDK.
3. The PTN5110 PD PHY drives the communication across the CC lines. On the MCU runs the PD firmware that supports the PD negotiation and communicates with the PTN5110 over I2C lines to perform functions such as requesting power level. So NXP's solution separates PD manager and PD PHY.
4. No, it is all you need for your application.
Best regards,
Tomas
Thank you Thomas for your detailed response.
The MCU is finalized by our customer, so we cannot change the MCU now. Its STM32L5 cortex-M33.
Let me know how we can support PTN5110 USB-PD firmware on STM32L5.
Hi Ritesh,
I am afraid that for non-NXP MCU I can only refer to the PTN5110N PD PHY application programming guide.
Best regards,
Tomas