1 Introduction

The TPS389006Q1EVM is an evaluation module (EVM) for the TPS389006-Q1 Multichannel Overvoltage and Undervoltage I²C Programmable Voltage Supervisor and Monitor. Test points are provided to give the user additional access, if needed, for oscilloscope or multi-meter measurements.

TPS389006Q1EVM comes with TPS389006004RTERQ1 pre-populated on pad U1 or depending on availability TPS389006Q1EVM can be fitted with socket J7 to house TPS389006004RTERQ1. This IC variant is configured for six integrated multichannel window inputs to monitor six distinct input voltage rails with two remote sense pins. The device also includes internal glitch immunity and noise filters to eliminate false resets resulting from erroneous signals. The TPS389006-Q1 device does not require any external resistors for setting overvoltage and undervoltage reset thresholds which optimizes and improves the reliability for safety systems.

I²C functionality 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, TPS389006-Q1 offers a sync feature for tagging rails coming up. Rail tagging works across multiple instances of TPS389006-Q1 devices. If users need a different TPS389006-Q1 variant, the existing device must be removed from the board. The EVM board is designed to support all possible options by changing jumper configurations and is capable of daisy-chaining, through 10-pin ribbon, up to three evaluation boards.

Figure 1-1 TPS389006Q1EVM Board Top

Figure 1-2 TPS389006Q1EVM Board Bottom