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ISO7320C, ISO7320FC, ISO7321C, ISO7321FC

SLLSEK8C – JANUARY 2015 – REVISED APRIL 2015

ISO732x Robust EMC, Low Power, Dual-Channel Digital Isolators

1 Features

3 Description

ISO732x provide galvanic isolation up to 3000 VRMS

1

•

Signaling Rate: 25 Mbps

for 1 minute per UL and 4242 VPK per VDE. These

•

Integrated Noise Filter on the Inputs

devices have two isolated channels comprised of

•

Default Output 'High' and 'Low' Options

logic input and output buffers separated by silicon

dioxide (SiO2) insulation barriers. ISO7320 has both

•

Low Power Consumption: Typical ICC per Channel

channels in the same direction while ISO7321 has

at 1 Mbps:

the two channels in opposite direction. In case of

–

ISO7320: 1.2 mA (5 V Supplies),

input power or signal loss, default output is 'low' for

0.9 mA (3.3 V Supplies)

devices with suffix 'F' and 'high' for devices without

–

ISO7321: 1.7 mA (5 V Supplies),

suffix 'F'. See Device Functional Modes for further

details. Used in conjunction with isolated power

1.2 mA (3.3 V Supplies)

supplies, these devices prevent noise currents on a

•

Low Propagation Delay: 33 ns

data bus or other circuits from entering the local

Typical (5V Supplies)

ground and interfering with or damaging sensitive

•

3.3 V and 5 V Level Translation

circuitry. ISO732x have integrated noise filters for

•

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

harsh

industrial

environment

where

short

noise

pulses may be present at the device input pins.

•

65 KV/

μs Transient Immunity,

ISO732x have TTL input thresholds and operate from

Typical (5V Supplies)

3 V to 5.5 V supply levels. Through innovative chip

•

Robust Electromagnetic Compatibility (EMC)

design

and

layout

techniques,

electromagnetic

–

System-level ESD, EFT, and Surge Immunity

compatibility of ISO732x have been significantly

enhanced to enable system-level ESD, EFT, Surge

–

Low Emissions

and Emissions compliance.

•

Isolation Barrier Life: > 25 Years

•

Operates from 3.3 V and 5 V Supplies

Device Information(1)

•

Narrow Body SOIC-8 Package

PART NUMBER

PACKAGE

BODY SIZE (NOM)

ISO7320C

•

Safety and Regulatory Approvals:

ISO7320FC

–

4242 VPK Isolation per DIN V VDE V 0884-10

SOIC (8)

4,90mm x 3,91mm

ISO7321C

and DIN EN 61010-1

ISO7321FC

–

3000 VRMS Isolation for 1 minute per UL 1577

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

–

CSA Component Acceptance Notice 5A, IEC

the end of the datasheet.

60950-1 and IEC 61010-1 Standards

–

CQC Certification per GB4943.1-2011

Simplified Schematic

2 Applications

•

Opto-Coupler Replacement in:

–

Industrial FieldBus

–

ProfiBus

–

ModBus

–

DeviceNet™ Data Buses

–

Servo Control Interface

(1)

VCCI and GNDI are supply and ground

connections

respectively

for

the

input

–

Motor Control

channels.

–

Power Supplies

(2)

VCCO and GNDO are supply and ground

–

Battery Packs

connections respectively for the output

channels.

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.