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ISO7842FDWWR
Isolators

ISO7831FDWWR

Active
Texas Instruments

HIGHEST ISOLATION RATING, TRIPLE-CHANNEL, 2/1, REINFORCED DIGITAL ISOLATOR

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ISO7842FDWWR
Isolators

ISO7831FDWWR

Active
Texas Instruments

HIGHEST ISOLATION RATING, TRIPLE-CHANNEL, 2/1, REINFORCED DIGITAL ISOLATOR

Technical Specifications

Parameters and characteristics for this part

SpecificationISO7831FDWWR
Channel TypeUnidirectional
Common Mode Transient Immunity (Min) [Min]100 V/ns
Data Rate100 Mbps
Inputs - Side 1/Side 2 [custom]2
Inputs - Side 1/Side 2 [custom]1
Isolated PowerFalse
Mounting TypeSurface Mount
Number of Channels [custom]3
Operating Temperature [Max]125 °C
Operating Temperature [Min]-55 °C
Package / Case16-SOIC
Propagation Delay tpLH / tpHL (Max) [Max] [custom]16 ns
Propagation Delay tpLH / tpHL (Max) [Max] [custom]16 ns
Pulse Width Distortion (Max) [Max]4.1 ns
Rise / Fall Time (Typ) [custom]1.9 ns
Rise / Fall Time (Typ) [custom]1.7 ns
Supplier Device Package16-SOIC
TechnologyCapacitive Coupling
TypeGeneral Purpose
Voltage - Isolation5700 Vrms
Voltage - Supply [Max]5.5 V
Voltage - Supply [Min]2.25 V
PartNumber of Channels [custom]Propagation Delay tpLH / tpHL (Max) [Max] [custom]Propagation Delay tpLH / tpHL (Max) [Max] [custom]Isolated PowerCommon Mode Transient Immunity (Min) [Min]Operating Temperature [Min]Operating Temperature [Max]TypeVoltage - Supply [Max]Voltage - Supply [Min]Rise / Fall Time (Typ) [custom]Rise / Fall Time (Typ) [custom]TechnologyInputs - Side 1/Side 2 [custom]Inputs - Side 1/Side 2 [custom]Supplier Device PackageChannel TypeMounting TypePulse Width Distortion (Max) [Max]Data RatePackage / CaseVoltage - IsolationPackage / Case [x]Package / Case [y]
ISO7842FDWWR
Texas Instruments
3
16 ns
16 ns
100 V/ns
-55 °C
125 °C
General Purpose
5.5 V
2.25 V
1.9 ns
1.7 ns
Capacitive Coupling
2
1
16-SOIC
Unidirectional
Surface Mount
4.1 ns
100 Mbps
16-SOIC
5700 Vrms
16-SOIC
Texas Instruments
3
16 ns
16 ns
100 V/ns
-55 °C
125 °C
General Purpose
5.5 V
2.25 V
1.9 ns
1.7 ns
Capacitive Coupling
2
1
16-SOIC
Unidirectional
Surface Mount
4.1 ns
100 Mbps
16-SOIC
5700 Vrms
SOIC (DWW)
Texas Instruments
3
16 ns
16 ns
100 V/ns
-55 °C
125 °C
General Purpose
5.5 V
2.25 V
1.9 ns
1.7 ns
Capacitive Coupling
2
1
16-SOIC
Unidirectional
Surface Mount
4.1 ns
100 Mbps
16-SOIC
5700 Vrms
SOIC (DW)
Texas Instruments
3
16 ns
16 ns
70 kV/µs
-55 °C
125 °C
General Purpose
5.5 V
2.25 V
1.9 ns
1.7 ns
Capacitive Coupling
2
1
16-SOIC
Unidirectional
Surface Mount
4.1 ns
100 Mbps
16-SOIC
5700 Vrms
0.295 in
7.5 mm
16-SOIC
Texas Instruments
3
16 ns
16 ns
70 kV/µs
-55 °C
125 °C
General Purpose
5.5 V
2.25 V
1.9 ns
1.7 ns
Capacitive Coupling
2
1
16-SOIC
Unidirectional
Surface Mount
4.1 ns
100 Mbps
16-SOIC
5700 Vrms
0.295 in
7.5 mm
16-SOIC
Texas Instruments
3
16 ns
16 ns
70 kV/µs
-55 °C
125 °C
General Purpose
5.5 V
2.25 V
1.9 ns
1.7 ns
Capacitive Coupling
2
1
16-SOIC
Unidirectional
Surface Mount
4.1 ns
100 Mbps
16-SOIC
5700 Vrms
0.295 in
7.5 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 9.69
10$ 8.76
25$ 8.35
100$ 7.25
250$ 6.92
500$ 6.31
Digi-Reel® 1$ 9.69
10$ 8.76
25$ 8.35
100$ 7.25
250$ 6.92
500$ 6.31
Tape & Reel (TR) 1000$ 3.88
2000$ 3.73
Texas InstrumentsLARGE T&R 1$ 5.74
100$ 5.03
250$ 3.53
1000$ 2.84

Description

General part information

ISO7831 Series

The ISO7831x device is a high-performance, 3-channel digital isolator with 8000-VPKisolation voltage. This device has reinforced isolation certifications according to VDE, CSA, TUV and CQC. The isolator provides 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 dioxide (SiO2) 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 ISO7831x device has two forward and one reverse-direction channels. If the input power or signal is lost, the default output ishighfor the ISO7831 device andlowfor the ISO7831F device. SeeDevice Functional Modesfor 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 ISO7831x has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. ISO7831x is available in a 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.

Documents

Technical documentation and resources

Isolation Glossary

Related Document

Industrial Automation Solutions Guide

Datasheet

UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. P)

Certificate

Distance Through Insulation: How Digital Isolators Meet Certification Requiremen

White paper

ISO784xx Quad-Channel Digital Isolator EVM User Guide

EVM User's guide

VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. W)

Certificate

Is integrated GaN changing the conventional wisdom?

Technical article

Pushing the envelope with high-performance digital-isolation technology

Analog Design Journal

Direct-drive configuration for GaN devices (Rev. A)

White paper

Universal Digital Isolator Evaluation Module

EVM User's guide

How to reduce radiated emissions of digital isolators for systems with RF module

Analog Design Journal

ISO7831x High-Performance, 8000-VPK Reinforced Triple Digital Isolators datasheet (Rev. B)

Data sheet

Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. A)

Functional safety information

Digital Isolator Design Guide (Rev. G)

Application note

CQC Certificate for ISOxxDWx (Rev. J)

Certificate

Why are Digital Isolators Certified to Meet Electrical Equipment Standards?

White paper

Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. C)

White paper

High-voltage reinforced isolation: Definitions and test methodologies

White paper

Isolation in solar power converters: Understanding the IEC62109-1 safety standar (Rev. A)

Functional safety information

Understanding electromagnetic compliance tests in digital isolators

White paper

CSA Certificate for ISO78xxDWx

Certificate

4Q 2015 Analog Applications Journal

Analog Design Journal

TUV Certificate for Isolation Devices (Rev. K)

Certificate

Circuit Board Insulation Design According to IEC60664 for Motor Drive Apps

White paper

Considerations for Selecting Digital Isolators

Application brief