OUTx

GNDO

GNDI

INx

Isolation

Capacitor

ENx

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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

SLLSEP4A – MARCH 2016 – REVISED JUNE 2016

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: ±75 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, IEC 60601-1 and IEC 61010-1 End

Equipment Standards

–

CQC Approval per GB4943.1-2011

–

TUV Certification according to EN 60950-1 and

EN 61010-1

–

All Certifications are Planned

2 Applications

•

Industrial Automation

•

Motor Control

•

Power Supplies

•

Solar Inverters

•

Medical Equipment

•

Hybrid Electric Vehicles

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

insulation barrier. This device comes 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 family of devices has been significantly

enhanced to ease system-level ESD, EFT, surge, and

emissions

compliance.

The

ISO774x

family

of

devices is 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 datasheet.

Simplified Schematic

connections respectively for the input

channels.

connections respectively for the output

channels.