General-purpose, triple-channel, 2/1, digital isolator

The ISO6731 device is a high-performance, triple-channel digital isolators ideal for

cost-sensitive applications requiring up to 5000 VRMS isolation ratings per UL

1577. This device is also certified by VDE, TUV, CSA, and CQC.

The ISO6731 devics provides high

electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or

LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by

TI’s double capacitive silicon dioxide (SiO2) insulation barrier. This device

comes with enable pins which can be used to put the respective outputs in high impedance for

multi-master driving applications. The ISO6731

device has two forward and one reverse-direction channels. In the event of input power or

signal loss, the default output is high for the device without suffix F and low

for the device with suffix F. See Device Functional Modes section

for further details.

Used in conjunction with isolated power supplies,

this device helps prevent noise currents on data buses, such as UART, SPI, RS-485, RS-232, and CAN from damaging sensitive circuitry. Through

innovative chip design and layout techniques, the electromagnetic compatibility of the ISO6731 device has been significantly enhanced to ease system-level ESD, EFT,

surge, and emissions compliance. The ISO6731 device is available in a 16-pin SOIC

wide-body (DW) package and is a pin-to-pin upgrade to the older generations.