I'm designing a device which I want to be powered from a phone or tab charger through a standard USB cable. The device doesn't have any MCU, so it cannot communicate via USB. In fact, it is a sort of LED lamp, so it contains constant current circuit which is designed to draw from 400 to 700 mA at 5V input. The question is, how should I organize CC1 and CC2 pins on the device? After some reading, I understand that they should be connected to GND through separate 5.1k resistors. Am I correct?
EDIT: J1 is a USB Type C receptacle. In reality C1 isn't polar but a 1206 SMD ceramic. I believe that the rest of the device schematic is totally unrelated to my question.
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Zhenek
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1What is the device in the schematic? – HandyHowie Jan 12 '22 at 15:03
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@HandyHowie Probably the Type C connector.. – Eugene Sh. Jan 12 '22 at 15:09
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1The polarized capacitor may not like the incorrect polarity. – Justme Jan 12 '22 at 15:14
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@Justme added comment to the OP – Zhenek Jan 12 '22 at 16:05
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@HandyHowie this is SMT Type C receptacle – Zhenek Jan 12 '22 at 17:18
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Yes, connect both CC pins to ground via resistors in order to activate the Vbus supply at 5V. See [this answer](https://electronics.stackexchange.com/questions/574317/usb-c-and-5v-power-supply). Your device would be the right hand side with the Rd resistors fitted. – Finbarr Jan 12 '22 at 21:22
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@Finbarr many thanks!!! – Zhenek Jan 13 '22 at 12:56