Automotive, general-purpose quad-channel 2/2 digital isolator

The ISO674x-Q1 devices are high-performance,

quad-channel digital isolators designed for cost-sensitive applications requiring up

to 5000VRMS isolation ratings per UL 1577. These devices are also

certified by VDE, TUV, CSA, and CQC.

The ISO674x-Q1 devices provide

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. These devices come with enable pins which can be used to put the

respective outputs in high impedance for multi-controller driving applications.

The ISO6740-Q1 device has all four channels in

the same direction,

the ISO6741-Q1 device has three forward and one

reverse-direction channels, and the

ISO6742-Q1 device has two

forward and two reverse-direction channels. In the event of input power or signal

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

for devices with suffix F. See also Device Functional Modes

section.

Used in conjunction with isolated

power supplies, the ISO674x-Q1 devices help prevent noise currents

on data buses, such as

CAN and LIN from damaging sensitive

circuitry. Through remarkable chip design and layout techniques, the electromagnetic

compatibility of the ISO674x-Q1 devices has been significantly

enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO674x-Q1 family of devices is available in a 16-pin SOIC wide-body (DW)

package and is a pin-to-pin upgrade to the older generations.