Intelligent power saving mode for solid state drive (ssd) systems

A method, comprising:

• setting a memory system including a plurality memory dies into a standby mode, each of the memory dies having a first standby mode and a second standby mode that consumes current at a lower rate than the first standby mode, comprising:
• maintaining, for each the memory dies, a value for an amount of current drawn when in the first standby mode;
• comparing the value of the amount of current drawn current drawn by each of memory dies when in the first standby mode against a threshold value;
• based on the comparing, selecting one or more of the memory dies to place in the second standby mode;
• and
• setting the selected memory dies into the second standby mode and setting the others of the memory dies into the first standby mode.

A solid state device, comprising:

• a plurality of memory dies each operable in a low power standby mode and in a regular standby mode, where each of the memory dies consumes more current in the regular standby mode than in the low power standby mode;
• and
• a controller connected to the plurality of memory dies, the controller configured to:
• concurrently set the plurality of memory dies into the low power standby mode;
• determine a first current level corresponding to a combined amount of current consumed by the plurality of memory dies when concurrently set in the low power standby mode;
• for each of a selected one or more of the memory dies, determine a corresponding second current level corresponding to a combined amount of current consumed by the plurality of memory dies with the selected memory die set in the regular standby mode and the others of the plurality of memory dies concurrently set in the low power standby mode;
• and
• for each of the selected one or more of the memory dies, determining a corresponding differential current level from a difference of the first current level and the corresponding second current level.