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Is current-limited power switch needed inOTG_HS "peripheral only" design ?

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Tbill.1
Associate II

‎2021-11-26 06:36 AM

It 's seem to me there is an error page 2651 of RM0468, STMH730 reference manual.

the figure 782 has a Current limited power switch in the design, but if un understand corretly, is only need in OTG host or dual role device.

Am I correct ? there is no need of current limited power switch on Vbus in peripheral only ?

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Peter BENSCH
ST Employee

‎2021-11-26 06:40 AM

Welcome, @Tbill.1​, to the community!

Yes, you are right. It is also mentioned in the caption:

1. (Instead) Use a regulator to build a bus-powered device.

Regards

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

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Peter BENSCH
ST Employee

‎2021-11-26 06:40 AM

Welcome, @Tbill.1​, to the community!

Yes, you are right. It is also mentioned in the caption:

1. (Instead) Use a regulator to build a bus-powered device.

Regards

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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