USB Schematics

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Published on 23 Jun 2020 - Updated on 05 Dec 2020



USB power shall be OFF when product is OFF

EMI/ESD Protections

USB Reference schematic

Design verification

Schematics verification

  • Check calibration resistor value
  • Check that there is a fuse on VBus
  • Check that USB fault signal is correctly connected (optional)
  • Check that there is an optional ESD/EMI protection circuit on USB_DP/DM signals
  • Check that there is a 120 uF capacitor on VBus per port