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YongseokJeon
Level 4
Level 4
Distributor
50 replies posted 50 questions asked 25 replies posted

 

HI,
I'm using CY8C6136FDI-F42 and battery charger IC.

PSoC6 is used as a USB device (Using Dp, Dn), and the battery charger IC is also using Dp, Dn (BC1.2).
The Dp, Dn pins are switched through a switching IC(DPDT Switch IC) to avoid collision.

However, I would like to remove the DPDT Switch IC for low cost.

Q1) Is it possible to set the Dp, Dn of the PSoC6 to floating as needed and then set to USB?
Q2) Is this a way to remove the Switch IC?

Thanks and Regards,
YS

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1 Solution
Aashita_R
Moderator
Moderator
Moderator
50 likes received 100 solutions authored 250 replies posted

Hi @YongseokJeon ,

1. Yes Dp/Dn pins of USB can be left floating when unused.

2. Can you please elaborate the usage of Switch IC? From the context of the thread, it seems it should be difficult for the Dp/Dn USB pins to simultaneously function as for USB and battery IC. However, the application of switch IC would help us understand more.

Happy to Help!

Best Regards,

Aashita

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2 Replies
Aashita_R
Moderator
Moderator
Moderator
50 likes received 100 solutions authored 250 replies posted

Hi @YongseokJeon ,

1. Yes Dp/Dn pins of USB can be left floating when unused.

2. Can you please elaborate the usage of Switch IC? From the context of the thread, it seems it should be difficult for the Dp/Dn USB pins to simultaneously function as for USB and battery IC. However, the application of switch IC would help us understand more.

Happy to Help!

Best Regards,

Aashita

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Aashita_R
Moderator
Moderator
Moderator
50 likes received 100 solutions authored 250 replies posted

Hi @YongseokJeon ,

The thread was locked due to inactivity for a long time. You can continue the discussion on the topic by opening a new thread with reference to the locked one. The continuous discussion in an inactive thread may mostly be unattended by community users.

Best Regards,

Aashita

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