Tool/software:
I am trying to build a power input for my board using the TPS25730D.
I would like to turn the output of the TPS2530D on/off by toggling the slide switch on/off.
Can I turn the output of the PPHV on/off by setting any terminal of the TPS25730D to High/Low?
Hi Yoshimoto-san,
The TPS25730D does not have any control that directly controls the VBUS to PPHV power path switch. If you want direct control over the power path, you would need to use the TPS25730S, which has an external power path and Gate Drivers, and you would need to design and implement external circuitry.
The TPS25730D does have a "Fault_IN" input that when asserted low disconnects the port, which effectively disables the Type-C functionality part. It really HI-Z's the CC pins so no USB-C connection would be detected and no Type-C contract can be formed. Use of this GPIO is only effective when the TPS25730 has power, so it is only useful if the TPS25730 is being powered from VIN3V3 by internal system power.
There are no other options regarding power path control.
Thanks and Regards,
Chris
Hi Yoshimoto-san,
There is no power supply on my board that can drive VIN3V3.
This means that it is not possible to turn the power path on/off using the TPS25730D.
Correct, there is no way to manually control the TPS25730D power path.
Can you provide a sample circuit for controlling the power path using the TPS25730S?
Unfortunately, we do not have a sample circuit. This is not something we have done/tried before, more of a suggestion of how the TPS25730 power path could be controlled by and external signal.
You would need to evaluate and develop the circuitry yourself.
Thanks and Regards,
Chris
