Patent ID: 8639468

Claim:
A temperature estimation circuit for estimating a temperature of a die of an integrated circuit, comprising: a temperature increase estimation circuit, having one or more inputs operable to receive one or more notification signals, each notification signal corresponding to a command signal passed to said integrated circuit, and having an output operable to provide a sum of one or more temperature increase values, each temperature increase value corresponding to a temperature increase of said integrated circuit due to one of said command signals; a temperature decrease estimation circuit, comprising: an input operable to receive a calculated die temperature value, and an output operable to provide a temperature decrease value depending on a mathematical model of temperature decrease, when no command signal is applied to said integrated circuit; and a temperature calculation circuit, having a first input connected to said output of said temperature increase estimation circuit, having a second input connected to said output of said temperature decrease estimation circuit, and having an output operable to provide said calculated die temperature value.