ISO674x-Q1 General-Purpose Quad-Channel Automotive Digital Isolators with

Robust EMC

1 Features

• AEC-Q100 qualified with the following results:

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

ambient operating temperature range

• Meets VDA320 isolation requirements

• 50 Mbps data rate

• Robust isolation barrier:

– Up to 10 kV surge capability

– ±75 kV/μs typical CMTI

• Wide supply range: 1.71 V to 1.89 V and 2.25 V to

5.5 V

• 1.71 V to 5.5 V level translation

• Default output high (ISO674x-Q1) and low

(ISO674xF-Q1) options

• 1.6 mA per channel typical at 1 Mbps

• Low propagation delay: 11 ns typical

• Robust electromagnetic compatibility (EMC)

– System-level ESD, EFT, and surge immunity

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

protection across isolation barrier

– Low emissions

• Wide-SOIC (DW-16) Package

• Safety-Related Certifications (pending):

– DIN V VDE 0884-11:2017-01

– UL 1577 component recognition program

– IEC 60950-1, IEC 62368-1, IEC 61010-1,

IEC60601-1 and GB 4943.1-2011 certifications

2 Applications

• Hybrid, electric and power train system (EV/HEV)

– Battery management system (BMS)

– On-board charger

– Traction inverter

– DC/DC converter

– Inverter and motor control

3 Description

The ISO674x-Q1 devices are high-performance,

quad-channel digital isolators ideal for cost-sensitive

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

These devices come with enable pins which can be

used to put the respective outputs in high impedance

for multi-master driving applications. The ISO6741-Q1

device has three forward and one 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 Device

Functional Modes section for further details.

Used in conjunction with isolated power supplies,

these devices help prevent noise currents on data

buses, such as CAN and LIN from damaging sensitive

circuitry. Through innovative 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.

Device Information

PART NUMBER(1)

PACKAGE

BODY SIZE (NOM)

ISO6741-Q1

SOIC (DW)

10.30 mm × 7.50 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

OUTx

GNDO

GNDI

Series Isolation

Capacitors

Copyright © 2016, Texas Instruments Incorporated

INx

ENx

GNDI=Input ground, GNDO=Output ground

Simplified Schematic

www.ti.com

ISO6741-Q1

SLLSFG4 – AUGUST 2020

Copyright © 2020 Texas Instruments Incorporated

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ISO6741-Q1

SLLSFG4 – AUGUST 2020

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. ADVANCE INFORMATION for preproduction products; subject to change

without notice.