Power supply management controller integrated circuit, power management circuit for electrically powered systems, and method of managing power to such systems

摘要

The present invention provides a power supply management controller integrated circuit for managing power supply to one or more system units of a system, said integrated circuit comprising power supply means for powering said system units, a power supply control unit for controlling said powering of said system units, a wake-up timer unit, and means for acknowledging an active or passive state of said system, wherein said power supply control unit is arranged for cooperating with said means for acknowledging said state of said system for enabling said power supply control unit to cease powering of said system units for de-activation of said system during said passive state of said system, and for enabling said power supply control unit to maintain powering of said system units during an active state of said system, and wherein said power supply control unit is ranged for cooperating with said wake-up timer unit for periodically powering said system units during said passive state of said system for enabling activation of said system.