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Does the ADuM4166 allow low power suspend?

  • Yes, the ADuM4165 fully supports the lowest power USB 2.0 suspend (L2 suspend) with ultra-low power operation of just 20 uA when the upstream side is powered off (e.g. no power on VBUS1 when peripheral port is unplugged from host). This suits battery powered peripherals. The additional USB 2.0 sleep mode (L1 suspend) is not supported.