The TPS389006/08 family of devices has six/eight channels that can be configured for over voltage, under voltage or both in a window configuration. The TPS389006/08 features highly accurate window threshold voltages (up to ±6mV) and a variety of voltage thresholds which can be factory configured or set on boot up by I²C commands.

The TPS389006/08 includes the resistors used to set the overvoltage and undervoltage thresholds internal to the device. These internal resistors allow for lower component counts and greatly simplifies the design because no additional margins are needed to account for the accuracy of external resistors.

The TPS389006 has a sequence logging feature to monitor and assign timestamps/log for the power rails turning on and off. It can perform sequence logging on a single device or across multiple devices on a board. It uses the SYNC pin to communicate across multiple devices. When either the ACT or SLEEP pin transitions from low to high or high to low, the sequence logging function becomes active until the expiry of the sequence timeout (SEQ_TOUT). During the sequence timeout, the UV faults can be masked (Automask - AMSK).

The TPS389006/08 is designed to assert active low output signals (NIRQ) when the monitored voltage is outside the safe window. The factory configuration can have the interrupts disabled for over voltage and under voltage faults, sequence timeout, BIST enabled at POR, sequence fault interrupts disabled, and over voltage and under voltage deglitch settings depending on the OTP. The TPS389R0 also has an open drain NRST output that can be selectively mapped to UV/OV or any UV faults for either all the monitored voltages or a single monitored voltage.