ISO7342C

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Low-power, quad-channel, 2/2, 25-Mbps digital isolator

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Product details

Parameters

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 2/2 Isolation rating (Vrms) 3000 Data rate (Max) (Mbps) 25 Rating Catalog Surge voltage capability (Vpk) 7800 Current consumption per channel (DC) (Typ) (mA) 0.9 Current consumption per channel (1 Mbps) (Typ) (mA) 0.9 Operating temperature range (C) -40 to 125 Default output High Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 3.3 Propagation delay (Typ) (ns) 31 open-in-new Find other Digital isolators

Package | Pins | Size

SOIC (DW) 16 77 mm² 10.3 x 7.5 open-in-new Find other Digital isolators

Features

  • Signaling Rate: 25 Mbps
  • Integrated Noise Filter on the Inputs
  • Default Output and 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

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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 for devices with suffix and for devices without suffix . See the section for further details.

Used in conjunction with isolated power supplies, these devices help prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The ISO734x device has integrated noise filter for harsh industrial environment where short noise pulses may be present at the device input pins. The ISO734x device has TTL input thresholds and operates from 3-V to 5.5-V supply levels. Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO734x family of devices has been significantly enhanced to enable system-level ESD, EFT, surge, and emissions compliance.

For all available packages, see the orderable addendum at the end of the datasheet.
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Technical documentation

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Type Title Date
* Datasheet ISO734x Robust EMC, Low-Power, Quad-Channel Digital Isolators datasheet (Rev. G) Jan. 19, 2017
Technical articles Isolation 101: How to find the right isolation solution for your application Feb. 11, 2020
Technical articles Why signal isolation matters in 48-V HEV/EV systems Nov. 20, 2019
More literature CSA Certification (Rev. P) Nov. 19, 2019
More literature VDE certificate for basic isolation for DIN VDE V 0884-11:2017-01 (Rev. Q) Sep. 20, 2019
More literature CQC Certification (Rev. F) Sep. 13, 2019
More literature UL Certification (Rev. N) Jul. 30, 2019
Technical articles Staying on budget: How digital isolators are transforming field transmitters May 24, 2019
Technical articles What are isolated digital inputs? Mar. 08, 2019
Application notes Digital Isolator Design Guide (Rev. B) Aug. 01, 2018
Application notes Isolation Glossary (Rev. A) Sep. 19, 2017
User guides ISO73xx Triple/Quad Digital Isolator Evaluation Module Sep. 24, 2014

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The ISO7342CEVM helps you evaluate device performance, supporting the fast development and analysis of isolated systems. The EVM supports evaluation of any our TI ISO73xx triple- or quad-channel digital isolators in a 16-pin SOIC (DW) package.


The ISO7342C digital isolator provides galvanic isolation (...)

Features
  • 4242-VPK isolation per DIN EN 60747-5-5
  • 3-kVRMS isolation for 1 minute per UL 1577
  • 25-Mbps signaling rate
  • Integrated noise filter at input
  • > 25 years isolation barrier life

Design tools & simulation

SIMULATION MODELS Download
SLLM244A.ZIP (34 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
SOIC (DW) 16 View options

Ordering & quality

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