TEMPERATURE MANAGEMENT UNIT, SYSTEM ON CHIP INCLUDING THE SAME AND METHOD OF MANAGING TEMPERATURE IN A SYSTEM ON CHIP

摘要

PURPOSE: A temperature management circuit, a system on chip (SOC) containing the same, and a temperature management method are provided to refer to the sub-temperatures of SOC sub-blocks only when a certain change of main temperature is detected, thereby efficiently controlling the temperature of the SOC. CONSTITUTION: A digital signal corresponding to the overall main temperature of an SOC is generated as a main temperature signal by using a main sensor (S110). Pulse signals having frequencies proportional to each sub-temperature of SOC sub-blocks are generated as sub-temperature signals by using multiple sub-sensors (S120). The operation of the SOC is controlled based on the main temperature signal and sub-temperature signals (S200). [Reference numerals] (AA) Start; (BB) End; (S110) Generate a digital signal corresponding to the overall main temperature of an SOC by using a main sensor; (S120) Generate pulse signals having frequencies proportional to each sub-temperature of SOC sub-blocks as sub-temperature signals by using multiple sub-sensors; (S200) Control the operation of the SOC based on the main temperature signal and sub-temperature signals