SLAU837 July 2020 – MONTH ISO6731 , ISO6731-Q1 , ISO6740 , ISO6740-Q1 , ISO6741 , ISO6741-Q1 , ISO6742 , ISO6742-Q1
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This user’s guide describes EVM operation with respect to the ISO67xx triple- and quad-digital isolators. However, the EVM may be reconfigured for evaluation of any of TI’s triple- and quad-channel digital isolators in a 16-pin WB SOIC package. This guide also describes the available channel configurations within the ISO67xx family, the EVM schematic, and typical laboratory setup. A typical input and output waveform is also presented.
The ISO67xx is TI’s new digital isolator family capable of galvanic isolations up to 5000 VRMS. These isolators provide high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os. The ISO67xx digital isolators have logic input and output buffers separated by a silicon oxide (SiO2) insulation barrier. Used with isolated power supplies, these devices block high voltages, isolate grounds, and prevent noise currents on a data bus or other circuits from entering the local ground and interfering with, or damaging sensitive circuitry.