1 Features

• Qualified for automotive applications

• AEC-Q100 qualified with the following results:

– Device temperature Grade 1: –40°C to 125°C

ambient operating temperature

• Functional Safety-Capable

– Documentation available to aid functional safety

system design: ISO7740-Q1, ISO7741-Q1,

ISO7742-Q1

• 100Mbps data rate

• Robust isolation barrier:

– >30-year projected lifetime at 1500VRMS

working voltage

– Up to 5700VRMS isolation rating

– Up to 12.8kV surge capability

– ±100kV/μs typical CMTI

• Wide supply range: 2.25V to 5.5V

• 2.25V to 5.5V level translation

• Default output high (ISO774x ) and low

(ISO774xF) options

• Low power consumption, typical 1.5mA per

channel at 1Mbps

• Low propagation delay: 10.7ns typical

(5V Supplies)

• Robust electromagnetic compatibility (EMC)

– System-level ESD, EFT, and surge immunity

– ±8kV IEC 61000-4-2 contact discharge

protection across isolation barrier

– Low emissions

• Extra-wide SOIC (DWW-16), wide-SOIC (DW-16)

and QSOP (DBQ-16) package options

• Safety-related certifications:

– DIN EN IEC 60747-17 (VDE 0884-17)

– UL 1577 component recognition program

– IEC 61010-1, IEC 62368-1, IEC 60601-1, and

GB 4943.1 certifications

2 Applications

• Hybrid, electric and powertrain system (EV/HEV)

– Battery management system (BMS)

– On-board charger

– Traction inverter

– DC/DC converter

– Inverter and motor control

3 Description

The ISO774x-Q1 automotive devices are highperformance,

quad-channel digital isolators with

5700VRMS (DWW package), 5000VRMS (DW package)

and 3000VRMS (DBQ package) isolation ratings per

UL 1577. This family of devices has reinforced

insulation ratings according to VDE, CSA, TUV and

CQC.

The ISO774x-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 a 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 and to reduce

power consumption. The ISO7740-Q1 device has all

four channels in the same direction, the ISO7741-Q1

device has three forward and one reverse-direction

channels, and the ISO7742-Q1 device has two

forward and two reverse-direction channels. If the

input power or signal is lost, default output is high

for devices without suffix F and low for devices with

suffix F. See the Device Functional Modes section for

further details.