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Product details

Parameters

Integrated isolated power Yes Number of channels (#) 4 Forward/reverse channels 3/1 Isolation rating (Vrms) 5000 Data rate (Max) (Mbps) 100 Rating Catalog Surge voltage capability (Vpk) 10000 Current consumption per channel (DC) (Typ) (mA) 5 Current consumption per channel (1 Mbps) (Typ) (mA) 5.75 Operating temperature range (C) -40 to 125 Default output High, Low Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Propagation delay (Typ) (ns) 13 open-in-new Find other Digital isolators

Package | Pins | Size

SO-MOD (DWE) 16 106 mm² 10.3 x 10.3 open-in-new Find other Digital isolators

Features

  • 100 Mbps data rate
  • Robust isolation barrier:
    • >100-Year projected lifetime at 1 kVRMS working voltage
    • Up to 5000 VRMS isolation rating
    • Up to 10 kVPK surge capability
    • ±100 kV/µs minimum CMTI
  • Integrated high-efficiency DC-DC converter with on-chip transformer
  • 3-V to 5.5-V Wide input supply range
  • Regulated 5-V or 3.3-V output
  • Up to 0.65-W output power
  • 5 V to 5 V; 5 V to 3.3 V: Available load current ≥ 130 mA
  • 3.3 V to 3.3 V: Available load current ≥ 75 mA
  • Soft-start to limit inrush current
  • Overload and short-circuit protection
  • Thermal shutdown
  • Default output: High and Low options
  • Low propagation delay: 13 ns Typ (5-V supply)
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
    • ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Low emissions
  • 16-pin Wide SOIC package
  • Extended temperature range: –40°C to +125°C
  • Safety-related certifications:
    • 7071-VPK reinforced isolation per DIN V VDE V 0884-11:2017-01
    • 5000-VRMS isolation for 1 minute per UL 1577
    • CSA Certification per IEC 60950-1, IEC 62368-1 and IEC 60601-1 end equipment standards
    • CQC Approval per GB4943.1-2011
    • TUV Certification according to EN 60950-1 and EN 61010-1

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Description

The ISOW784x is a family of high-performance, quad-channel reinforced digital isolators with an integrated high-efficiency power converter. The integrated DC-DC converter provides up to 650 mW of isolated power at high efficiency and can be configured for various input and output voltage configurations. Therefore these devices eliminate the need for a separate isolated power supply in space-constrained isolated designs.

The ISOW784x family of devices provides high electromagnetic immunity and low emissions while isolating CMOS or LVCMOS digital I/Os. The signal-isolation channel has a logic input and output buffer separated by a double capacitive silicon dioxide (SiO2) insulation barrier, whereas, power isolation uses on-chip transformers separated by thin film polymer as insulating material. Various configurations of forward and reverse channels are available. If the input signal is lost, the default output is high for the ISOW784x devices without the F suffix and low for the devices with the F suffix (see VSI and VSO can be either VCC or VISO depending on the channel direction).

These devices help prevent noise currents on data buses, such as RS-485, RS-232, and CAN, 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 the device has been significantly enhanced to ease system-level ESD, EFT, surge and emissions compliance. The high-efficiency of the power converter allows operation at a higher ambient temperature. The device is available in a 16-pin SOIC wide-body (SOIC-WB) DWE package.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet ISOW784x High-performance, 5000-VRMS reinforced quad-channel digital isolators with integrated high-efficiency, low-emissions DC-DC converter datasheet (Rev. F) Mar. 04, 2019
White papers Machine Learning Powers Autonomous Industrial Systems (Rev. A) Jun. 17, 2020
Application notes How to Isolate Signal and Power in Isolated CAN Systems (Rev. A) Apr. 06, 2020
More literature TUV certificate for isolation devices (Rev. I) Mar. 14, 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 reinforced isolation for DIN VDE V 0884-11:2017-01 (Rev. N) Nov. 13, 2019
Application notes Designing High Voltage Power Supply for Ultrasound Smart Probes Oct. 22, 2019
Application notes Topology Selection for Isolated Power Supplies in Patient Monitor and Ultrasound Oct. 22, 2019
Application notes Overvoltage Protection for Isolated DC/DC Converter (Rev. A) Sep. 19, 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 Top 6 design questions about I2C isolators Mar. 13, 2019
Application notes Low-Emission Designs With ISOW7841 Integrated Signal and Power Isolator (Rev. C) Feb. 26, 2019
Application notes How to isolate signal and power for an RS-485 system (Rev. B) Oct. 16, 2018
Application notes How to isolate signal and power for I2C (Rev. A) Oct. 02, 2018
Application notes How to use isolation to improve ESD, EFT and surge immunity in industrial system Jul. 24, 2017
White papers Enabling high voltage quality and reliability Mar. 13, 2017
User guides ISOW784x Quad-Channel Digital Isolator With Integrated DC-DC Converter EVM Mar. 05, 2017
White papers Fully integrated signal and power isolation – applications and benefits Feb. 10, 2017

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
Description

The ISOW7841EVM is an evaluation module (EVM) used to evaluate the ISOW7841. The ISOW7841 is a high-performance, reinforced quad-channel digital isolator with integrated DC/DC converter in a wide-body SOIC package (package code, DWE). The EVM features enough test points and jumper (...)

Features
  • High-speed, robust EMC quad-channel digital isolator with integrated power of 50% efficiency
  • Wide supply & level translation range: 3 V to 5.5 V
  • High signaling rate: Up to 100 Mbps
  • Low propagation delay: 11 ns typical (5-V supplies)
  • Isolation barrier life > 25 years

Design tools & simulation

SIMULATION MODELS Download
SLLM338.ZIP (31 KB) - IBIS Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

Many TI reference designs include the ISOW7841 Use our reference design selection tool to review and identify designs that best match your application and parameters.

CAD/CAE symbols

Package Pins Download
SOIC (DWE) 16 View options

Ordering & quality

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