SLUSCC7C July 2016 – June 2018 TPS546C23
The ON_OFF_CONFIG command configures the combination of CNTL pin input and serial bus commands needed to turn the unit on and off. The contents of this register can be stored to nonvolatile memory using the STORE_DEFAULT_ALL (11h) command. The default value in ON_OFF_CONFIG register is to have the device power up by CNTL pin only with the active high polarity and use the programmed turnoff delay (TOFF_DELAY) and ramp down (TOFF_FALL) for powering off the converter.
For PWM loop slave device, this command cannot be accessed. Any writes to this command will be ignored. An attempt to read or write this command will result in a NACK’d command, the reporting of an IVC fault, and triggering of SMB_ALERT.