SLVSE46A November 2017 – January 2018 TPS65680
The device enters ACTIVE state when the LS_CNTRL pin is high, the EN_DLY counter has expired, and all level shifter supplies are in a valid operating range. The pattern sequencer is now operational and is driving the level shifter output stages according to the programmed pattern sequence. In ACTIVE, the I2C interface is not responsive, i.e. the device does accept any data and does not acknowledge any I2C transaction even when address properly. Once in ACTIVE state, the device cannot return to STANDBY state but only advance to DISCHARGE STEP1.