SNVU875A October 2023 – February 2024 TPS38700 , TPS389006
The TPS389006 IC variant on this EVM is configured for six integrated multichannel window inputs to monitor six distinct input voltage rails. The device also includes internal glitch immunity and noise filters to eliminate false resets resulting from erroneous signals. The TPS389006 device does not require any external resistors for setting overvoltage and undervoltage reset thresholds which optimizes and improves the reliability for safety systems.
TPS389006 has full I2C functionality which gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. This device offers CRC error checking, sequence logging during turn ON or turn OFF, and a built-in ADC for voltage readouts to provide redundant error checking. In addition to these features, TPS389006 offers a sync feature for rail tagging. Rail tagging works across multiple instances of TPS389006 devices. If users need a different TPS389006 variant, the currently attached device must be removed from the board. The EVM board is designed to support all variants of TPS389006.
The TPS38700S-Q1 IC variant on this EVM is a programmable 6 channel sequencer. The device offers the option of battery backup power and the ability to communicate faults via I2C. The NIRQ pin serves as an interrupt flag to alert the system to possible faults, and the NRST pin asserts logic high under reset condition.