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ISO7741-Q1

ACTIVE

Automotive, robust EMC, quad-channel, 3/1, reinforced digital isolator

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Data sheet

ISO7741-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 4 Rating Automotive Forward/reverse channels 3 forward / 1 reverse Integrated isolated power No Isolation rating Basic, Reinforced Default output High, Low Data rate (max) (Mbps) 100 Protocols GPIO, PWM, SPI, UART Surge isolation voltage (VIOSM) (VPK) 10000, 12800 Transient isolation voltage (VIOTM) (VPK) 4242, 8000 Withstand isolation voltage (VISO) (Vrms) 3000, 5000, 5700 CMTI (min) (V/µs) 85000 Operating temperature range (°C) -40 to 125 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.25 Propagation delay time (typ) (µs) 0.0107 Current consumption per channel (DC) (typ) (mA) 0.88 Current consumption per channel (1 Mbps) (typ) (mA) 1.48 Creepage (min) (mm) 3.7, 8, 14.5 Clearance (min) (mm) 3.7, 8, 14.5 TI functional safety category Functional Safety-Capable
Number of channels 4 Rating Automotive Forward/reverse channels 3 forward / 1 reverse Integrated isolated power No Isolation rating Basic, Reinforced Default output High, Low Data rate (max) (Mbps) 100 Protocols GPIO, PWM, SPI, UART Surge isolation voltage (VIOSM) (VPK) 10000, 12800 Transient isolation voltage (VIOTM) (VPK) 4242, 8000 Withstand isolation voltage (VISO) (Vrms) 3000, 5000, 5700 CMTI (min) (V/µs) 85000 Operating temperature range (°C) -40 to 125 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.25 Propagation delay time (typ) (µs) 0.0107 Current consumption per channel (DC) (typ) (mA) 0.88 Current consumption per channel (1 Mbps) (typ) (mA) 1.48 Creepage (min) (mm) 3.7, 8, 14.5 Clearance (min) (mm) 3.7, 8, 14.5 TI functional safety category Functional Safety-Capable
SOIC (DW) 16 106.09 mm² 10.3 x 10.3 SOIC (DWW) 16 177.675 mm² 10.3 x 17.25 SSOP (DBQ) 16 29.4 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
  • 100Mbps data rate
  • Robust isolation barrier:
    • >30-year projected lifetime at 1500VRMS working voltage
    • Up to 5700VRMS isolation rating
    • Up to 12.8kV surge capability
    • ±100kV/µs typical CMTI
  • Wide supply range: 2.25V to 5.5V
  • 2.25V to 5.5V level translation
  • Default output high (ISO774x) and low (ISO774xF) options
  • Low power consumption, typical 1.5mA per channel at 1Mbps
  • Low propagation delay: 10.7ns typical (5V Supplies)
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
    • ±8kV 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 EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 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
  • 100Mbps data rate
  • Robust isolation barrier:
    • >30-year projected lifetime at 1500VRMS working voltage
    • Up to 5700VRMS isolation rating
    • Up to 12.8kV surge capability
    • ±100kV/µs typical CMTI
  • Wide supply range: 2.25V to 5.5V
  • 2.25V to 5.5V level translation
  • Default output high (ISO774x) and low (ISO774xF) options
  • Low power consumption, typical 1.5mA per channel at 1Mbps
  • Low propagation delay: 10.7ns typical (5V Supplies)
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
    • ±8kV 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 EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications

The ISO774x-Q1 automotive devices are high-performance, quad-channel digital isolators with 5700VRMS (DWW package), 5000VRMS (DW package) and 3000VRMS (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-controller driving applications and to reduce power consumption. The ISO7740-Q1 device has all four channels in the same direction, the ISO7741-Q1 device has three forward and one reverse-direction channels, and the ISO7742-Q1 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.

The ISO774x-Q1 automotive devices are high-performance, quad-channel digital isolators with 5700VRMS (DWW package), 5000VRMS (DW package) and 3000VRMS (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-controller driving applications and to reduce power consumption. The ISO7740-Q1 device has all four channels in the same direction, the ISO7741-Q1 device has three forward and one reverse-direction channels, and the ISO7742-Q1 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.
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Technical documentation

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Type Title Date
* Data sheet ISO774x-Q1 Automotive, High-Speed, Reinforced Quad-Channel Digital Isolators datasheet (Rev. G) PDF | HTML 11 Oct 2024
Technical article Why signal isolation matters in 48-V HEV/EV systems (Rev. A) PDF | HTML 10 Nov 2025
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. D) PDF | HTML 07 Nov 2025
Certificate CSA Certificate for ISO77xxDBQ (Rev. A) 15 Oct 2025
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. Y) 22 Sep 2025
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. R) 08 Sep 2025
Certificate CQC Certificate for ISOxxDBQ (Rev. B) 19 Aug 2025
Certificate CQC Certificate for ISOxxDWx (Rev. K) 18 Aug 2025
Certificate TUV Certificate for Isolation Devices (Rev. L) 15 Aug 2025
Certificate CSA Certificate for ISO7741-Q1DWW 24 Mar 2023
Certificate CSA Certificate for ISO77xxDW 13 Mar 2023
Application note IEC60601-1-2 Compliant Dig. Iso Design W/ 16-kV Contact Discharge ESD Protection PDF | HTML 16 Feb 2023
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 16 Nov 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML 11 Jun 2021
Application brief How to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A) PDF | HTML 19 May 2021
White paper TI GaN FET와 C2000™ 실시간 MCU를 결합하여 전력 밀도가 높고 효율적인 전원 시스템 달성 18 Mar 2021
White paper 結合 TI GaN FETs 與 C2000™ 即時 MCU，實現功率密集與有效率的數位電源系統 18 Mar 2021
EVM User's guide Universal Digital Isolator Evaluation Module PDF | HTML 04 Mar 2021
White paper Achieve Power-Dense and Efficient Digital Power Systems by Combining TI GaN FETs 05 Jan 2021
Technical article Get more from your GaN-based digital power designs with a C2000 real-time MCU PDF | HTML 17 Dec 2020
Functional safety information ISO7741-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 18 Jun 2020
Technical article Solving high-temperature isolation design challenges with AEC-Q100 Grade 0 digital PDF | HTML 02 Mar 2020
Application brief Solutions to meet the higher automotive isolation creepage & clearance needs 13 Jan 2020
Application brief Considerations for Selecting Digital Isolators 24 Jul 2018
Application brief 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- (...)

User guide: PDF | HTML
Not available on TI.com
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 (...)
User guide: PDF
Not available on TI.com
Simulation model

ISO7741 IBIS Model (Rev. A)

SLLM311A.ZIP (62 KB) - IBIS Model
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Simulation model

ISO7741 PSpice Transient Model

SLLM465.ZIP (1 KB) - PSpice Model
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Reference designs

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This reference design is a two-stage, high-efficiency, 30kW power supply with a high voltage DC (HVDC) output. The first stage is a three-level flying capacitor power factor correction (PFC) converter running off of a three-phase input source. The PFC control is implemented with a TMS320F28P650DK (...)
Test report: PDF
Reference designs

PMP23547 — GaN-based 8kW three-phase totem-pole power factor correction and three-phase LLC reference design

This reference design is a high-density and high-efficiency 8kW power supply. The first stage is a triangular conduction mode (TCM) power factor correction (PFC) converter followed by a delta-delta connected three-phase inductor-inductor-capacitor (LLC) converter. Both power stages are implemented (...)
Test report: PDF
Reference designs

PMP22650 — GaN-based, 6.6-kW, bidirectional, onboard charger reference design

The PMP22650 reference design is a 6.6-kW, bidirectional, onboard charger. The design employs a two-phase totem pole PFC and a full-bridge CLLLC converter with synchronous rectification. The CLLLC utilizes both frequency and phase modulation to regulate the output across the required regulation (...)
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOIC (DW) 16 Ultra Librarian
SOIC (DWW) 16 Ultra Librarian
SSOP (DBQ) 16 Ultra Librarian
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