PTN5110N memory Multi-Time Programmable (MTP)

matteo_silotto — Mon, 07 Dec 2020 15:48:49 GMT

Hello all,

we are working with the PTN5110N in sink mode on a USB Type-C powered board.

The PTN5110N PD PHY application programming guide (AN12137) says that the IC has a non-volatile flash memory Multi-Time Programmable (MTP) inside.

About it, the document says: These preprogrammed parameters determine the initial behavior of the PTN5110N, e.g., the PTN5110N can behave as Type-C DFP, UFP, or DRP upon power up. The PTN5110N can also be programmed to operate autonomously without a host intervention, e.g., during dead battery condition.

There is no indication of how to change this memory configuration, so we need some clarification about it:
1) is it possible to change the NTP default configuration of the PTN5110N?
2) if yes, is it possible to do it through the I2C interface?

Thank you.

Re: PTN5110N memory Multi-Time Programmable (MTP)

TomasVaverka — Wed, 09 Dec 2020 07:49:31 GMT

Hello Matteo,

The MTP memory can only be changed at the factory. It is not something for customers to change. The MTP was used to configure three different types of PTN5110N as specified in the datasheet – UFP, DFP and DRP.

Best regards,

Tomas

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