Circuit and method to manage and recover from bias temperature instability

A method of Bias Temperature Instability (BTI) wear leveling, the method comprising:

• receiving a power demand of a load;
• determining a number of switches of a plurality of switches between a voltage bus and the load required to be turned on based on the power demand;
• outputting a first control signal indicating the determined number of switches required to be turned on to an encoder;
• selecting, using the encoder, a first combination of on/off states of the plurality of switches based on the control signal and a second combination of on/off states of the plurality of switches;
• transmitting the switch signal from the encoder to the switches to effect the first combination;
• and
• receiving a trigger indicating that the power demand of the load is being updated or a BTI wear threshold has been met, and wherein the selecting the selection of the first combination occurs after receipt of the trigger.

A method of Bias Temperature Instability (BTI) wear leveling, the method comprising:

• receiving a power demand of a load;
• determining a number of switches of a plurality of switches between a voltage bus and the load required to be turned on based on the power demand;
• outputting a first control signal indicating the determined number of switches required to be turned on to an encoder;
• selecting, using the encoder, a first combination of on/off states of the plurality of switches based on the control signal and a second combination of on/off states of the plurality of switches;
• selecting, using the encoder, the second combination when a second output signal is received by the encoder after the first output signal has been received by the encoder, wherein the first combination includes the same number of on states of switches as the second combination, and the first combination is different from the second combination;
• and
• transmitting the switch signal from the encoder to the switches to effect the first combination.