Product details

Integrated isolated power No Number of channels (#) 3 Forward/reverse channels 2/1 Isolation rating (Vrms) 5700 Data rate (Max) (Mbps) 100 Rating Catalog Surge voltage capability (Vpk) 12800 Current consumption per channel (DC) (Typ) (mA) 1.03 Current consumption per channel (1 Mbps) (Typ) (mA) 1.67 Operating temperature range (C) -55 to 125 Default output High, Low Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.25 Propagation delay (Typ) (ns) 10.7
Integrated isolated power No Number of channels (#) 3 Forward/reverse channels 2/1 Isolation rating (Vrms) 5700 Data rate (Max) (Mbps) 100 Rating Catalog Surge voltage capability (Vpk) 12800 Current consumption per channel (DC) (Typ) (mA) 1.03 Current consumption per channel (1 Mbps) (Typ) (mA) 1.67 Operating temperature range (C) -55 to 125 Default output High, Low Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.25 Propagation delay (Typ) (ns) 10.7
SOIC (DW) 16 77 mm² 10.3 x 7.5 SOIC (DWW) 16 178 mm² 10.3 x 17.25
  • 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
  • Wide Temperature Range: –55°C to 125°C
  • Low Power Consumption, Typical 1.7 mA per
    Channel at 1 Mbps
  • Low Propagation Delay: 11 ns Typical
    (5-V Supplies)
  • Industry leading CMTI (min): ±100 kV/µs
  • Robust Electromagnetic Compatibility (EMC)
  • System-Level ESD, EFT, and Surge Immunity
  • Low Emissions
  • Isolation Barrier Life: > 40 Years
  • SOIC-16 Wide Body (DW) and Extra-Wide Body
    (DWW) Package Options
  • Safety-Related Certifications:
    • 8000 VPK Reinforced Isolation per DIN V VDE
      V 0884-10 (VDE V 0884-10):2006-12
    • 5.7 kVRMS Isolation for 1 Minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC
      60950-1 and IEC 60601-1 End Equipment
      Standards
    • CQC Certification per GB4943.1-2011
    • TUV Certification per EN 61010-1 and EN
      60950-1
    • All DW Package Certifications Complete;
      DWW Package Certifications Complete per
      UL, VDE, TUV and Planned for CSA and CQC
  • 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
  • Wide Temperature Range: –55°C to 125°C
  • Low Power Consumption, Typical 1.7 mA per
    Channel at 1 Mbps
  • Low Propagation Delay: 11 ns Typical
    (5-V Supplies)
  • Industry leading CMTI (min): ±100 kV/µs
  • Robust Electromagnetic Compatibility (EMC)
  • System-Level ESD, EFT, and Surge Immunity
  • Low Emissions
  • Isolation Barrier Life: > 40 Years
  • SOIC-16 Wide Body (DW) and Extra-Wide Body
    (DWW) Package Options
  • Safety-Related Certifications:
    • 8000 VPK Reinforced Isolation per DIN V VDE
      V 0884-10 (VDE V 0884-10):2006-12
    • 5.7 kVRMS Isolation for 1 Minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC
      60950-1 and IEC 60601-1 End Equipment
      Standards
    • CQC Certification per GB4943.1-2011
    • TUV Certification per EN 61010-1 and EN
      60950-1
    • All DW Package Certifications Complete;
      DWW Package Certifications Complete per
      UL, VDE, TUV and Planned for CSA and CQC

The ISO7831x device is a high-performance, 3-channel digital isolator with 8000-VPK isolation 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 is high for the ISO7831 device and low for the ISO7831F device. See Device Functional Modes 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 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.

The ISO7831x device is a high-performance, 3-channel digital isolator with 8000-VPK isolation 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 is high for the ISO7831 device and low for the ISO7831F device. See Device Functional Modes 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 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.

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Technical documentation

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Type Title Date
* Data sheet ISO7831x High-Performance, 8000-VPK Reinforced Triple Digital Isolators datasheet (Rev. B) 28 Jun 2016
Certificate TUV Certificate for Isolation Devices (Rev. J) 23 Aug 2021
Certificate CQC Certification (Rev. G) 19 Aug 2021
Application note Digital Isolator Design Guide (Rev. C) 12 Jul 2021
Certificate CSA Certification (Rev. Q) 14 Jun 2021
Certificate VDE certificate for reinforced isolation for DIN VDE V 0884-11:2017-01 (Rev. O) 14 Jun 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen 11 Jun 2021
User guide Universal Digital Isolator Evaluation Module 04 Mar 2021
Certificate UL Certification (Rev. O) 03 Feb 2021
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. A) 07 Dec 2020
Technical article How to select the right digital isolator for your design 21 Oct 2020
Technical article Why signal isolation matters in 48-V HEV/EV systems 20 Nov 2019
White paper Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. A) 19 Sep 2019
Technical article Staying on budget: How digital isolators are transforming field transmitters 24 May 2019
Technical article What are isolated digital inputs? 08 Mar 2019
White paper Direct-drive configuration for GaN devices (Rev. A) 19 Nov 2018
Application note Pushing the envelope with high-performance digital-isolation technology (Rev. A) 22 Aug 2018
Application note Considerations for Selecting Digital Isolators 24 Jul 2018
White paper Isolation in solar power converters: Understanding the IEC62109-1 safety standar (Rev. A) 18 May 2018
Application note How to reduce radiated emissions of digital isolators for systems with RF module 26 Mar 2018
Application note Isolation Glossary (Rev. A) 19 Sep 2017
Application note 4Q 2015 Analog Applications Journal 30 Oct 2015
Application note Pushing the envelope with high-performance digital-isolation technology 30 Oct 2015
User guide ISO784xx Quad-Channel Digital Isolator EVM User Guide 17 Oct 2014
White paper Understanding electromagnetic compliance tests in digital isolators 17 Oct 2014
White paper High-voltage reinforced isolation: Definitions and test methodologies 16 Oct 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DIGI-ISO-EVM — Universal digital isolator evaluation module

DIGI-ISO-EVM is an evaluation module (EVM) used to evaluate any of the TI single-channel, dual-channel, triple-channel, quad-channel or six-channel digital isolator devices in five different packages - 8-pin narrow-body SOIC (D), 8-pin wide-body SOIC (DWV), 16-pin wide-body SOIC (DW), 16-pin ultra (...)

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Evaluation board

ISO7842-EVM — High-Immunity, 5.7kVRMS Reinforced Quad-Channel 2/2 Digital Isolator Evaluation Module

The ISO7842 provides galvanic isolation up to 5700 VRMS for 1 minute per UL and 8000 VPK per VDE. This device has four isolated channels comprised of a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, this (...)

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Daughter card

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The LMG34XX-BB-EVM is an easy to use breakout board to configure any LMG34XX half bridge board, such as the LMG3410-HB-EVM, as a synchronous buck converter.  By providing a power stage, bias power and logic circuitry this EVM allows for quick measurements of the GaN device switching.  This (...)
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Limit: 30
Simulation model

ISO7831 IBIS Model (Rev. B)

SLLM286B.ZIP (104 KB) - IBIS Model
Simulation model

ISO7831F IBIS Model

SLLM288.IBS (243 KB) - IBIS Model
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TIDM-1007 — High efficiency GaN CCM totem pole bridgeless Power Factor Correction (PFC) reference design

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Continuous-Conduction-Mode (CCM) Totem-pole power factor correction (PFC) is a simple but efficient power converter.  To achieve 99% efficiency, there are many design details that need to be taken into account.  The PMP20873 reference design uses TI’s 600VGaN  power stage (...)
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PMP20637 — High Efficiency and High Power Density 1kW Resonant Converter Reference Design with TI HV GaN FET

This reference design is a high efficiency, high power density and light weight resonant converter reference design. It converts a 390V input to a 48V/1kW output. The PMP20637 power stage has over 140W/in^3 power density. The whole board weight is less than 210g. With fixed 950kHz switching (...)
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SOIC (DW) 16 View options
SOIC (DWW) 16 View options

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