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USB Port Power Switching & Controllers

Microchip's port power controllers provide a single USB port power switch capable of up to 2.5 Amps of continuous current as well as a USB 2.0 compliant data switch. When a portable device is plugged in, it can auto-cycle through up to seven preloaded charger emulation profiles until charging commences. The embedded profiles are compatible with BC1.2 CDP, DCP, YD/T-1591 as well as most Apple® and RIM® portable devices. It also allows portable device charging when an application or host is in standby or in a sleep state. 

USB 2.0 Port Power Controllers



  • Port power switch - 2.9V to 5.5V source voltage range with
  • Up to 2.5A current with 55 mΩ On Resistance
  • Nine preloaded charger emulation profiles supporting USB-IF BC1.2 charging
  • YD/T-1591, and most Apple, and RIM, protocols standard
  • Host enabled programmability/configurability on boot up
  • Charging Active or Attach Detection open-drain output
  • Wake on Attach USB
  • UL recognized and EN/IEC 60950-1 (CB) certified