ISO7331C

ACTIVE

Low-power, triple-channel, 2/1, 25-Mbps digital isolator

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Product details

Parameters

Integrated isolated power No Number of channels (#) 3 Forward/reverse channels 2/1 Isolation rating (Vrms) 3000 Data rate (Max) (Mbps) 25 Rating Catalog Surge voltage capability (Vpk) 7800 Current consumption per channel (DC) (Typ) (mA) 1 Current consumption per channel (1 Mbps) (Typ) (mA) 1 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 ‘High’ and ‘Low’ Options
  • Low Power Consumption: Typical ICC per Channel
    at 1 Mbps:
    • ISO7330: 1 mA (5 V Supplies),
      0.8 mA (3.3 V Supplies)
    • ISO7331: 1.4 mA (5 V Supplies),
      1 mA (3.3 V Supplies)
  • Low Propagation Delay: 32 ns
    Typical (5V Supplies)
  • Operates from 3.3 V and 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 (5V Supplies)
  • Robust Electromagnetic Compatibility (EMC)
    • System-level ESD, EFT, and Surge Immunity
    • Low Emissions
  • Wide Body SOIC-16 Package
  • Isolation Barrier Life: > 25 Years
  • Safety and Regulatory Approvals:
    • 4242 VPK Isolation per DIN V VDE V 0884-10
      and DIN EN 61010-1
    • 3000 VRMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC
      60950-1 and IEC 61010-1 End Equipment
      Standards
    • CQC Certification per GB4943.1-2011
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Description

ISO733x provide galvanic isolation up to 3000 VRMS for 1 minute per UL and 4242 VPK per VDE. These devices have three isolated channels comprised of logic input and output buffers separated by a silicon dioxide (SiO2) insulation barrier. ISO7330 has all three channels in the same direction while ISO7331 has two channels in forward and one channel in reverse direction. In case of input power or signal loss, default output is ‘low’ for devices with suffix ‘F’ and ‘high’ for devices without suffix ‘F’. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. ISO733x has integrated noise filter for harsh industrial environment where short noise pulses may be present at the device input pins. ISO733x 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 ISO733x has been significantly enhanced to enable system-level ESD, EFT, Surge and Emissions compliance.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 11
Type Title Date
* Datasheet ISO733x Robust EMC, Low Power, Triple-Channel Digital Isolators datasheet (Rev. B) Apr. 16, 2015
Technical articles How to select the right digital isolator for your design Oct. 21, 2020
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators Oct. 12, 2020
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
User guide 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 BOARD Download
49
Description

The ISO7341CEVM helps you evaluate device performance, supporting the fast development and analysis of isolated systems. The EVM supports evaluation of any of our ISO73xx triple- or quad-channel digital isolators in a 16-pin SOIC (DW) package.


The ISO7341C 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 MODEL Download
SLLM270.ZIP (29 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
Automotive 48-V, 1-kW Motor Drive Reference Design
TIDA-00281 The TIDA-00281 TI Design is a 3-Phase Brushless DC Motor Drive designed to operate in 48-V automotive applications. The board is designed to drive motors in the 1-kW range and can handle currents up to 30-A. The design includes analog circuits working in conjunction with a C2000 LaunchPad to spin a (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
SOIC (DW) 16 View options

Ordering & quality

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  • Ongoing reliability monitoring

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