Product details

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 2/2 Isolation rating (Vrms) 5000, 3000 Data rate (Max) (Mbps) 100 Rating Automotive Surge voltage capability (Vpk) 12800, 6400 Current consumption per channel (DC) (Typ) (mA) 0.72 Current consumption per channel (1 Mbps) (Typ) (mA) 1.45 Operating temperature range (C) -40 to 125 TI functional safety category Functional Safety-Capable 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 (#) 4 Forward/reverse channels 2/2 Isolation rating (Vrms) 5000, 3000 Data rate (Max) (Mbps) 100 Rating Automotive Surge voltage capability (Vpk) 12800, 6400 Current consumption per channel (DC) (Typ) (mA) 0.72 Current consumption per channel (1 Mbps) (Typ) (mA) 1.45 Operating temperature range (C) -40 to 125 TI functional safety category Functional Safety-Capable 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 SSOP (DBQ) 16 29 mm² 4.9 x 6
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: –40°C to 125°C ambient operating temperature
  • Functional Safety-Capable
  • 100 Mbps data rate
  • Robust isolation barrier:
    • >100-year projected lifetime at 1500 VRMS working voltage
    • Up to 5700 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
  • 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
  • Extra-wide SOIC (DWW-16), wide-SOIC (DW-16) and QSOP (DBQ-16) package options
  • Safety-related certifications:
    • DIN VDE V 0884-11:2017-01
    • UL 1577 component recognition program
    • CSA, CQC, and TUV certifications
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: –40°C to 125°C ambient operating temperature
  • Functional Safety-Capable
  • 100 Mbps data rate
  • Robust isolation barrier:
    • >100-year projected lifetime at 1500 VRMS working voltage
    • Up to 5700 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
  • 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
  • Extra-wide SOIC (DWW-16), wide-SOIC (DW-16) and QSOP (DBQ-16) package options
  • Safety-related certifications:
    • DIN VDE V 0884-11:2017-01
    • UL 1577 component recognition program
    • CSA, CQC, and TUV certifications

The ISO774x-Q1automotive devicesare high-performance, quad-channel digital isolators with 5700 VRMS (DWW package), 5000 VRMS(DW package) and 3000 VRMS (DBQ package) isolation ratings per UL 1577. This family of devices has reinforced insulation ratings according to VDE, CSA, TUV and CQC.

The ISO774x-Q1 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-Q1device has all four channels in the same direction, theISO7741-Q1 device has three forward and one reverse-direction channels, and theISO7742-Q1device 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.

The ISO774x-Q1automotive devicesare high-performance, quad-channel digital isolators with 5700 VRMS (DWW package), 5000 VRMS(DW package) and 3000 VRMS (DBQ package) isolation ratings per UL 1577. This family of devices has reinforced insulation ratings according to VDE, CSA, TUV and CQC.

The ISO774x-Q1 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-Q1device has all four channels in the same direction, theISO7741-Q1 device has three forward and one reverse-direction channels, and theISO7742-Q1device 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.

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Technical documentation

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Type Title Date
* Data sheet ISO774x-Q1 High-Speed, Robust-EMC Reinforced Quad-Channel Digital Isolators datasheet (Rev. D) 13 Oct 2020
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 16 Nov 2021
Certificate VDE Certificate for Reinforced Isolation for DIN VDE V 0884-11:2017-01 (Rev. Q) 12 Nov 2021
Certificate TUV Certificate for Isolation Devices (Rev. J) 23 Aug 2021
Certificate CQC Certification (Rev. G) 19 Aug 2021
Certificate CSA Certification (Rev. Q) 14 Jun 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen 11 Jun 2021
Application note How to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A) 19 May 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
Functional safety information ISO7742-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 18 Jun 2020
Technical article Why signal isolation matters in 48-V HEV/EV systems 20 Nov 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
Application note Considerations for Selecting Digital Isolators 24 Jul 2018
Application note Simplify current and voltage monitoring with isolated SPI and I2C in your BMS 03 Jul 2018
User guide ISO77xx Triple/Quad Digital Isolator Evaluation Module User's Guide 05 May 2016

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

ISO7741DBQEVM — ISO7741DBQ High Speed, Robust EMC Quad-Channel Digital Isolator Evaluation Module

ISO7741DBQEVM is an Evaluaiton Module used to evaluate the high performance, reinforced quad channel digital isolator ISO7741 in 16-Pin SSOP package (Package Code-DBQ). The EVM features enough test points & jumper options for one to evaluate the device with minimal external components.
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Limit: 5
Evaluation board

ISO7741EVM — ISO7741 high-speed, robust EMC quad-channel digital isolator evaluation module

The ISO7741EVM is an evaluaiton module (EVM) to evaluate the ISO7741. The ISO7741 is a high-performance, reinforced quad-channel digital isolator in a wide-body SOIC package (package code DW). The EVM features enough test points and jumber options for you to evaluate the (...)
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Simulation model

ISO7742 IBIS Model (Rev. A)

SLLM312A.ZIP (62 KB) - IBIS Model
Simulation model

ISO7742 PSpice Transient Model

SLLM472.ZIP (243 KB) - PSpice Model
Reference designs

TIDA-020030 — SiC/IGBT isolated gate driver reference design with thermal diode and sensing FET

This reference design is an IGBT or SiC isolated gate driver power stage driving a IGBT module with advanced protection features. The design consists of a single phase power stage from a traction inverter supporting high level of safety features. The IGBT module has integrated thermal diode for (...)
Package Pins Download
SOIC (DW) 16 View options
SSOP (DBQ) 16 View options

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