OUTx

GNDO

GNDI

INx

Isolation

Capacitor

ENx

Product

Folder

Order

Now

Technical

Documents

Tools &

Software

Support &

Community

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. PRODUCTION DATA.

ISO7740, ISO7741, ISO7742

SLLSEP4D – MARCH 2016 – REVISED MAY 2017

ISO774x High-Speed, Robust-EMC Reinforced Quad-Channel Digital Isolators

1

1 Features

1

•

Signaling Rate: Up to 100 Mbps

•

Wide Supply Range: 2.25 V to 5.5 V

•

2.25-V to 5.5-V Level Translation

•

Default Output High and Low Options

•

Wide Temperature Range: –55°C to 125°C

•

Low Power Consumption, Typical 1.5 mA per

Channel at 1 Mbps

•

Low Propagation Delay: 10.7 ns Typical

(5-V Supplies)

•

High CMTI: ±100 kV/μs Typical

•

Robust Electromagnetic Compatibility (EMC)

–

System-Level ESD, EFT, and Surge Immunity

–

Low Emissions

•

Isolation Barrier Life: >40 Years

•

Wide-SOIC (DW-16) and QSOP (DBQ-16)

Package Options

•

Safety-Related Certifications:

–

DIN V VDE V 0884-10 (VDE V 0884-10):

2006-12

–

UL 1577 Component Recognition Program

–

CSA Component Acceptance Notice 5A, IEC

60950-1 and IEC 60601-1 End Equipment

Standards

–

CQC Approval per GB4943.1-2011

–

TUV Certification according to EN 60950-1 and

EN 61010-1

–

Certifications for DW Package Complete; All

Other Certifications are Planned

2 Applications

•

Industrial Automation

•

Motor Control

•

Power Supplies

•

Solar Inverters

•

Medical Equipment

3 Description

The ISO774x devices are high-performance, quad-

channel

digital

isolators

with

5000

ratings per UL 1577. This family of devices has

reinforced insulation ratings according to VDE, CSA,

TUV and CQC.

The ISO774x 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 silicon

with enable pins which can be used to put the

respective outputs in high impedance for multi-master

driving

applications

and

to

reduce

power

consumption. The ISO7740 device has all four

channels in the same direction, the ISO7741 device

has

three

forward

and

one

reverse-direction

channels, and the ISO7742 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.

Used in conjunction with isolated power supplies, this

device helps prevent noise currents on a data bus or

other circuits from entering the local ground and

interfering

with

or

damaging

sensitive

circuitry.

Through

innovative

chip

design

and

layout

techniques,

electromagnetic

compatibility

of

the

ISO774x devices have been significantly enhanced to

ease system-level ESD, EFT, surge, and emissions

compliance. The ISO774x devices are available in

16-pin SOIC and QSOP packages.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

ISO7740

ISO7741

ISO7742

SOIC (DW)

10.30 mm × 7.50 mm

SSOP (DBQ)

4.90 mm × 3.90 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic

connections respectively for the input

channels.

connections respectively for the output

channels.