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GNDO

GNDI

INx

VCCO

VCCI

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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.

ISO7340C, ISO7340FC, ISO7341C, ISO7341FC, ISO7342C, ISO7342FC

SLLSEI6G – SEPTEMBER 2014 – REVISED JANUARY 2017

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

1

1 Features

1

•

Signaling Rate: 25 Mbps

•

Integrated Noise Filter on the Inputs

•

Default Output High and Low Options

•

Low Power Consumption, Typical ICC per Channel

at 1 Mbps:

–

ISO7340x: 0.9 mA (5-V Supplies),

0.7 mA (3.3-V Supplies)

–

ISO7341x: 1.2 mA (5-V Supplies),

0.9 mA (3.3-V Supplies)

–

ISO7342x: 1.3 mA (5-V Supplies),

0.9 mA (3.3-V Supplies)

•

Low Propagation Delay: 31 ns

Typical (5-V Supplies)

•

3.3-V and 5-V Level Translation

•

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

•

70-KV/μs Transient Immunity,

Typical (5-V Supplies)

•

Robust Electromagnetic Compatibility (EMC)

–

System-level ESD, EFT, and Surge Immunity

–

Low Emissions

•

Operates from 3.3-V and 5-V Supplies

•

Wide-Body SOIC-16 Package

•

Safety-Related Certifications:

–

4242-VPK Basic Isolation per DIN V VDE V

0884-10 and DIN EN 61010-1

–

3-KVRMS Isolation for 1 minute per UL 1577

–

CSA Component Acceptance Notice 5A, IEC

60950-1 and IEC 61010-1 End Equipment

Standards

–

GB4943.1-2011 CQC Certified

2 Applications

•

Optocoupler Replacement in:

–

Industrial Fieldbus

–

Profibus

–

Modbus

–

DeviceNet Data Buses

–

Servo Control Interface

–

Motor Control

–

Power Supplies

–

Battery Packs

3 Description

The ISO734x family of devices provides galvanic

isolation up to 3000 VRMS for 1 minute per UL 1577

and 4242 VPK per VDE V 0884-10. These devices

have four isolated channels comprised of logic input

and output buffers separated by a silicon dioxide

(SiO2) insulation barrier.

The ISO7340x device has four channels in forward

direction, the ISO7341x device has three forward and

one reverse-direction channels, and the ISO7342x

device has two forward and two reverse-direction

channels. In case of input power or signal loss, the

default output is low for devices with suffix F and high

for

devices

without

suffix

F.

See

the

Device

Functional Modes section for further details.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE

ISO7340C

SOIC (16)

10.30 mm × 7.50 mm

ISO7340FC

ISO7341C

ISO7341FC

ISO7342C

ISO7342FC

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

the end of the datasheet.

Simplified Schematic

VCCI and GNDI are supply and ground

connections respectively for the input

channels.

VCCO and GNDO are supply and ground

connections respectively for the output.