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ISO7340C, ISO7340FC, ISO7341C, ISO7341FC, ISO7342C, ISO7342FC

SLLSEI6E – SEPTEMBER 2014 – REVISED APRIL 2015

ISO734x Robust EMC, Low Power, Quad-Channel Digital Isolators

1 Features

3 Description

1

•

Signaling Rate: 25 Mbps

•

Integrated Noise Filter on the Inputs

devices have four isolated channels comprised of

•

Default Output 'High' and 'Low' Options

logic input and output buffers separated by a silicon

•

channels in forward direction, ISO7341 has three

at 1 Mbps:

forward and one reverse-direction channels; and

–

ISO7340: 0.9 mA (5 V Supplies),

ISO7342 has two forward and two reverse-direction

0.7 mA (3.3 V Supplies)

channels. In case of input power or signal loss,

–

ISO7341: 1.2 mA (5 V Supplies),

default output is 'low' for devices with suffix 'F' and

'high' for devices without suffix 'F'. See Device

0.9 mA (3.3 V Supplies)

Functional

Modes

for

further

details.

Used

in

–

ISO7342: 1.3 mA (5 V Supplies),

conjunction with isolated power supplies, these

0.9 mA (3.3 V Supplies)

devices prevent noise currents on a data bus or other

•

Low Propagation Delay: 31 ns

circuits from entering the local ground and interfering

Typical (5 V Supplies)

with or damaging sensitive circuitry. ISO734x has

integrated noise filter for harsh industrial environment

•

3.3 V and 5 V Level Translation

where short noise pulses may be present at the

•

Wide Temperature Range: –40°C to 125°C

device input pins. ISO734x has TTL input thresholds

•

70 KV/

μs Transient Immunity,

and operates from 3 V to 5.5 V supply levels.

Typical (5 V Supplies)

Through

innovative

chip

design

and

layout

techniques, electromagnetic compatibility of ISO734x

•

Robust Electromagnetic Compatibility (EMC)

has been significantly enhanced to enable system-

–

System-level ESD, EFT, and Surge Immunity

level ESD, EFT, Surge and Emissions compliance.

–

Low Emissions

•

Operates from 3.3 V and 5 V Supplies

Device Information(1)

ORDER NUMBER

PACKAGE

BODY SIZE

•

Wide Body SOIC-16 Package

ISO7340C

•

Safety and Regulatory Approvals:

ISO7340FC

–

ISO7341C

0884-10 and DIN EN 61010-1

SOIC (16)

10.3mm x 7.50mm

ISO7341FC

–

ISO7342C

–

CSA Component Acceptance Notice 5A, IEC

ISO7342FC

60950-1 and IEC 61010-1 End Equipment

Standards

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

the end of the datasheet.

–

GB4943.1-2011 CQC Certification

Simplified Schematic

2 Applications

•

Optocoupler Replacement in:

–

Industrial Fieldbus

–

Profibus

–

Modbus

–

–

Servo Control Interface

(1)

–

Motor Control

connections

respectively

for

the

input

–

Power Supplies

channels.

–

Battery Packs

(2)

connections respectively for the output.

1

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.