i.MX ProcessorsのトピックRe: 5V supply on NXP design https://community.nxp.com/t5/i-MX-Processors/5V-supply-on-NXP-design/m-p/1019764#M150775 <HTML><HEAD></HEAD><BODY><P>Hello Ido Office,</P><P></P><P>I asked our experts and they explained that in the 8MMINI-BB design,&nbsp; USB2 is the primary supply, and USB1 can work at "UFP" and "DFP" mode.<BR />USB1/USB2 is default "UFP" mode.</P><P style="color: #51626f; background-color: #ffffff; border: 0px;"></P><P style="color: #51626f; background-color: #ffffff; border: 0px;">When USB1 in "DFP" mode, VDD_5V as a source that supplies power to external circuit through J301, while USB1 PTN5110NHQZ is powered by VDD_3V3, not from USB1_OTG_VBUS_F. If VDD_3V3 is no power, USB1 PTN5110NHQZ cannot switch to "DFP" mode. From IMX8MM EVK design, there will be also not power to VDD_5V, USB1_VBUS and USB2_VBUS.</P><P style="color: #51626f; background-color: #ffffff; border: 0px;">&nbsp;</P><P style="color: #51626f; background-color: #ffffff; border: 0px;"><span class="lia-inline-image-display-wrapper" image-alt="Image 39.jpg"><img src="https://community.nxp.com/t5/image/serverpage/image-id/99631iAECB4191C029A087/image-size/large?v=v2&amp;px=999" role="button" title="Image 39.jpg" alt="Image 39.jpg" /></span></P><P style="color: #51626f; background-color: #ffffff; border: 0px;">&nbsp;</P><P style="color: #51626f; background-color: #ffffff; border: 0px;">This delay isn't forced, but user's design should meet iMX8MMini powerup sequence as Page23 of datasheet IMX8MMCEC. It would depend on whether you also need to use the USD PD source function.</P><P style="color: #51626f; background-color: #ffffff; border: 0px;"></P><P style="color: #51626f; background-color: #ffffff; border: 0px;">Regards,</P></BODY></HTML> Fri, 27 Dec 2019 06:04:12 GMT gusarambula 2019-12-27T06:04:12Z 5V supply on NXP design https://community.nxp.com/t5/i-MX-Processors/5V-supply-on-NXP-design/m-p/1019763#M150774 <HTML><HEAD></HEAD><BODY><P>In the&nbsp;8MMINI-BB design there is&nbsp; Q101 FET which turns on after the VDD_3V3 turns on.</P><P>VDD_5V connected to the&nbsp;USB TYPE-C circuit, Is there any reason for that delay or can I assemble R120?</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/95941i7342FC0FEC34B252/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P></BODY></HTML> Sun, 08 Dec 2019 16:48:56 GMT https://community.nxp.com/t5/i-MX-Processors/5V-supply-on-NXP-design/m-p/1019763#M150774 idom 2019-12-08T16:48:56Z Re: 5V supply on NXP design https://community.nxp.com/t5/i-MX-Processors/5V-supply-on-NXP-design/m-p/1019764#M150775 <HTML><HEAD></HEAD><BODY><P>Hello Ido Office,</P><P></P><P>I asked our experts and they explained that in the 8MMINI-BB design,&nbsp; USB2 is the primary supply, and USB1 can work at "UFP" and "DFP" mode.<BR />USB1/USB2 is default "UFP" mode.</P><P style="color: #51626f; background-color: #ffffff; border: 0px;"></P><P style="color: #51626f; background-color: #ffffff; border: 0px;">When USB1 in "DFP" mode, VDD_5V as a source that supplies power to external circuit through J301, while USB1 PTN5110NHQZ is powered by VDD_3V3, not from USB1_OTG_VBUS_F. If VDD_3V3 is no power, USB1 PTN5110NHQZ cannot switch to "DFP" mode. From IMX8MM EVK design, there will be also not power to VDD_5V, USB1_VBUS and USB2_VBUS.</P><P style="color: #51626f; background-color: #ffffff; border: 0px;">&nbsp;</P><P style="color: #51626f; background-color: #ffffff; border: 0px;"><span class="lia-inline-image-display-wrapper" image-alt="Image 39.jpg"><img src="https://community.nxp.com/t5/image/serverpage/image-id/99631iAECB4191C029A087/image-size/large?v=v2&amp;px=999" role="button" title="Image 39.jpg" alt="Image 39.jpg" /></span></P><P style="color: #51626f; background-color: #ffffff; border: 0px;">&nbsp;</P><P style="color: #51626f; background-color: #ffffff; border: 0px;">This delay isn't forced, but user's design should meet iMX8MMini powerup sequence as Page23 of datasheet IMX8MMCEC. It would depend on whether you also need to use the USD PD source function.</P><P style="color: #51626f; background-color: #ffffff; border: 0px;"></P><P style="color: #51626f; background-color: #ffffff; border: 0px;">Regards,</P></BODY></HTML> Fri, 27 Dec 2019 06:04:12 GMT https://community.nxp.com/t5/i-MX-Processors/5V-supply-on-NXP-design/m-p/1019764#M150775 gusarambula 2019-12-27T06:04:12Z