ACT81460
Rev 1.0, 18-Dec-2018
The IC’s specific CMI determines the specific combina-
tion of these inputs to enter SLEEP state. The
ACT81460’s I2C stays enabled in SLEEP state.
exits the SLEEP state when nPBIN is pulled low
for >32ms. This also clears the SLEEP register bits.
When the IC exits the SLEEP state, it goes through a
full power ON sequence before entering the POWER
ON state.
The I2C bit SLEEP MODE is set at factory and cannot
be changed by the user. It controls the logical combina-
tion of the GPIO input and the SLEEP register bit to en-
ter SLEEP state. When the SLEEP MODE bit is factory
configured to 1, the logical combination is an “OR” func-
tion and when SLEEP MODE is factory configured to a
0, the logical combination is an “AND” function.
If no GPIOs are configured as a control input to enter
and exit SLEEP state then only the SLEEP register bit
controls the entry and exit of the SLEEP state.
Tables 1a and 1b show the conditions to enter SLEEP
state.
The IC exits the SLEEP state when the conditions to
enter SLEEP state are no longer present. The IC also
Figure 1: ACT81460 State Diagram
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