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ISO7742DWR

  • ISO7742DWR

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ISO7742DWR Overview

The ISO774x devices are high-performance, quad-channel digital isolators with 5000 VRMS (DW package) and 3000 VRMS (DBQ package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC. The ISO7741B device is designed for applications that require basic insulation ratings only.

The ISO774x devices provide 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 a double capacitive silicon dioxide (SiO2) insulation barrier. These devices come 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 ISO7740 device has all four channels in the same direction, the ISO7741 device has three forward and one reverse-direction channels, and the ISO7742 device has two forward and two reverse-direction channels. If the input power or signal is lost, default output is high for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, 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 ISO774x devices have been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO774x devices are available in 16-pin SOIC and QSOP packages.

ISO7742DWR

Features

  • 100 Mbps data rate
  • Robust isolation barrier:
    • >100-year projected lifetime at 1500 VRMS working voltage
    • Up to 5000 VRMS isolation rating
    • Up to 12.8 kV surge capability
    • ±100 kV/μs typical CMTI
  • Wide supply range: 2.25 V to 5.5 V
  • 2.25-V to 5.5-V level translation
  • Default output high (ISO774x) and low (ISO774xF) options
  • Wide temperature range: –55°C to 125°C
  • Low power consumption, typical 1.5 mA per channel at 1 Mbps
  • Low propagation delay: 10.7 ns typical
    (5-V Supplies)
  • 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
  • Wide-SOIC (DW-16) and QSOP (DBQ-16) package options
  • Automotive version available: ISO774x-Q1
  • Safety-related certifications:
    • DIN VDE V 0884-11:2017-01
    • UL 1577 component recognition program
    • CSA, CQC, and TUV certifications
ISO7742DWR
ISO7742DWR

Product Parameters

  • genericPartNumber

    ISO7742

  • partDescription

    Robust EMC, quad-channel, 2/2, reinforced digital isolator

  • statusDescription

    This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

  • packageQtyCarrier

    2000|LARGE T&R

  • orderablePartNumber

    ISO7742DWR

  • statusDisplay

    ACTIVE

  • packageQuantity

    2000

  • packagePins

    SOIC (DW)|16

Technical Documents

  • How to Isolate Signal and Power for I2C (Rev. B)Details>>

  • Isolation Glossary (Rev. A)Details>>

  • Introduction to HVDC Architecture and Solutions for Control and Protection (Rev. B)Details>>

  • ISO7742-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMADetails>>

  • Considerations for Selecting Digital IsolatorsDetails>>

Related Products

Other distributor's price

Distributor Part # Mfg. Description Price
digikey ISO7742DWR Texas Instruments DGTL ISO 5000VRMS 4CH GP 16SOIC

1---$3.7100

10---$3.3350

25---$3.1528

100---$2.7326

250---$2.5924

500---$2.3262

1000---$1.9830
arrow ISO7742DWR Texas Instruments Digital Isolator Logic 4-CH 100Mbps 16-Pin SOIC T/R

2000---$1.5860
mouser ISO7742DWR Texas Instruments Digital Isolators Robust EMC, quad-channel, 2/2, reinforced digital isolator 16-SOIC -55 to 125

1---$3.7100

10---$3.3400

25---$3.1600

100---$2.7400

250---$2.6000

500---$2.3300

1000---$2.0400

2000---$2.0300
newark ISO7742DWR Texas Instruments Digital Isolator, 4-Ch, 100Mbps, Soic-16, No. Of Channels:4 Channel, Propagation Delay:10.7Ns, Supply Voltage Min:2.25V, Supply Voltage Max:5.5V, Interface Case Style:Soic, No. Of Pins:16Pins, Operating Temperature Min:-55°C, Rohs Compliant: Yes |Texas Instruments ISO7742DWR

1---$3.8600

10---$3.6900

25---$3.5100

50---$3.3600

100---$3.2100

250---$3.1100

500---$3.0300

1000---$2.9800

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