1 Features
• Functional Safety-Capable
– Documentation available to aid functional safety
system design: ISO6740-Q1, ISO6741-Q1,
ISO6742-Q1
• AEC-Q100 qualified with the following results:
– Device temperature Grade 1: –40°C to 125°C
ambient operating temperature range
• Meets VDA320 isolation requirements
• 50Mbps data rate
• Robust isolation barrier:
– High lifetime at 1500VRMS working voltage
– Up to 5000VRMS isolation rating
– Up to 10kV surge capability
– ±150kV/μs typical CMTI
• Wide supply range: 1.71V to 1.89V and 2.25V to
5.5V
• 1.71V to 5.5V level translation
• Default output high (ISO674x-Q1) and low
(ISO674xF-Q1) options
• 1.6mA per channel typical at 1Mbps
• Low propagation delay: 11ns typical
• Robust electromagnetic compatibility (EMC)
– System-level ESD, EFT, and surge immunity
– ±8kV IEC 61000-4-2 contact discharge
protection across isolation barrier
– Low emissions
• Wide-SOIC (DW-16) Package
• Safety-Related Certifications :
– DIN EN IEC 60747-17 (VDE 0884-17)
– UL 1577 component recognition program
– IEC 62368-1, IEC 61010-1, IEC 60601-1
– GB 4943.1

2 Applications
• Hybrid, electric and power train system (EV/HEV)
– Battery management system (BMS)
– On-board charger
– DC/DC converter
– Inverter and motor control

3 Description
The ISO674x-Q1 devices are high-performance,
quad-channel digital isolators designed for costsensitive
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 reversedirection
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.