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.