Patent ID: 9389674
Filing Date: 2016-07-12
CPC Classification: G06F,Y02D

Claim Text:
1. An integrated circuit with power gating, the integrated circuit comprising: a power header switch configured to connect and disconnect a circuit to a common voltage source, wherein the circuit is a powered off circuit when disconnected from the common voltage source; a multiplexer configured to selectably connect a charge pump or the common voltage source to a gate terminal of the power header switch, wherein the charge pump provides a higher voltage to the gate terminal than the common voltage source; and a controller configured to control a selection of the multiplexer to the charge pump and the common voltage source, the controller configured to disconnect the charge pump from the gate terminal and connect the common voltage source to the gate terminal of the power header switch in response to at least one of a following conditions: a prediction of a demand core power-up request; an increase in a gate leakage current above a gate leakage current threshold; and a reduction in a temperature of the powered off circuit below a temperature threshold.