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ISO6441 ACTIVE Robust EMC, reinforced/Basic 4-channel, 3/1, digital isolator with 250kV/us CMTI, 150Mbps Pin-to-pin cost-effective solution; 250kV/us CMTI and 150 Mbps that supports most digital isolation applications

Product details

Rating Catalog Integrated isolated power No Number of channels 4 Forward/reverse channels 3 forward / 1 reverse Features 1.8V I/O Data rate (max) (Mbps) 50 Protocols GPIO, PWM, SPI, UART SPI frequency (max) (MHz) 13.75 Propagation delay time (typ) (ns) 11 Propagation delay time (max) (ns) 18 Part-to-part output skew (max) (ns) 6 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 7 Channel-to-channel output skew (max) (ns) 6 Certifications CQC, CSA, DIN, TUV Isolation rating Reinforced Working isolation voltage (VIOWM) (Vrms) 450 Withstand isolation voltage (VISO) (Vrms) 5000 Surge isolation voltage (VIOSM) (kVPK) 10 CMTI (min) (kV/µs) 100 Default output High, Low Creepage (min) (mm) 8 Current consumption per channel (DC) (typ) (mA) 1 Current consumption per channel (1 Mbps) (typ) (mA) 1.65 Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Transient isolation voltage (VIOTM) (VPK) 7071 Clearance (min) (mm) 8
Rating Catalog Integrated isolated power No Number of channels 4 Forward/reverse channels 3 forward / 1 reverse Features 1.8V I/O Data rate (max) (Mbps) 50 Protocols GPIO, PWM, SPI, UART SPI frequency (max) (MHz) 13.75 Propagation delay time (typ) (ns) 11 Propagation delay time (max) (ns) 18 Part-to-part output skew (max) (ns) 6 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 7 Channel-to-channel output skew (max) (ns) 6 Certifications CQC, CSA, DIN, TUV Isolation rating Reinforced Working isolation voltage (VIOWM) (Vrms) 450 Withstand isolation voltage (VISO) (Vrms) 5000 Surge isolation voltage (VIOSM) (kVPK) 10 CMTI (min) (kV/µs) 100 Default output High, Low Creepage (min) (mm) 8 Current consumption per channel (DC) (typ) (mA) 1 Current consumption per channel (1 Mbps) (typ) (mA) 1.65 Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Transient isolation voltage (VIOTM) (VPK) 7071 Clearance (min) (mm) 8
SOIC (DW) 16 106.09 mm² (10.3 mm × 10.3 mm)
  • Functional Safety-Capable
  • 50 Mbps data rate
  • Robust isolation barrier:
    • High lifetime at 1500 VRMS working voltage
    • Up to 5000 VRMS isolation rating
    • Up to 10 kV surge capability
    • ±150 kV/µs typical CMTI
  • Wide supply range: 1.71 V to 1.89 V and 2.25 V to 5.5 V
  • 1.71 V to 5.5 V level translation
  • Default output high (ISO674x) and low (ISO674xF) options
  • Wide temperature range: –40°C to 125°C
  • 1.6 mA per channel typical at 1 Mbps
  • Low propagation delay: 11 ns typical
  • 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) Package
  • Safety-Related Certifications :
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 62368-1, IEC 61010-1, IEC 60601-1
    • GB 4943.1
  • Functional Safety-Capable
  • 50 Mbps data rate
  • Robust isolation barrier:
    • High lifetime at 1500 VRMS working voltage
    • Up to 5000 VRMS isolation rating
    • Up to 10 kV surge capability
    • ±150 kV/µs typical CMTI
  • Wide supply range: 1.71 V to 1.89 V and 2.25 V to 5.5 V
  • 1.71 V to 5.5 V level translation
  • Default output high (ISO674x) and low (ISO674xF) options
  • Wide temperature range: –40°C to 125°C
  • 1.6 mA per channel typical at 1 Mbps
  • Low propagation delay: 11 ns typical
  • 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) Package
  • Safety-Related Certifications :
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 62368-1, IEC 61010-1, IEC 60601-1
    • GB 4943.1

The ISO674x devices are high-performance, quad-channel digital isolators ideal for cost-sensitive applications requiring up to 5000 VRMS isolation ratings per UL 1577. These devices are also certified by VDE, TUV, CSA, and CQC.

The ISO674x 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 TI’s 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. The ISO6740 device has all four channels in the same direction, ISO6741 device has three forward and one reverse-direction channels, and ISO6742 device has two forward and two reverse-direction channels. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See Device Functional Modes section for further details.

The ISO674x devices are high-performance, quad-channel digital isolators ideal for cost-sensitive applications requiring up to 5000 VRMS isolation ratings per UL 1577. These devices are also certified by VDE, TUV, CSA, and CQC.

The ISO674x 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 TI’s 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. The ISO6740 device has all four channels in the same direction, ISO6741 device has three forward and one reverse-direction channels, and ISO6742 device has two forward and two reverse-direction channels. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See Device Functional Modes section for further details.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet ISO674x General-Purpose Reinforced Quad-Channel Digital Isolators with Robust EMC datasheet (Rev. G) PDF | HTML Jan 3, 2023
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) Jul 15, 2026
Certificate TUV Certificate for Isolation Devices (Rev. M) May 7, 2026
Certificate CSA Certificate for ISO67xxDW (Rev. B) May 7, 2026
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) May 7, 2026
Product overview Isolating SPI Signals (Rev. B) PDF | HTML Dec 9, 2025
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. D) PDF | HTML Nov 7, 2025
Certificate CQC Certificate for ISOxxDWx (Rev. K) Aug 18, 2025
Product overview Isolating GPIO Signals PDF | HTML Jul 25, 2022
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? Nov 16, 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML Jun 11, 2021
Application brief How to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A) PDF | HTML May 19, 2021
Functional safety information ISO6741/ISO6741-Q1 Functional Safety FIT Rate, FMD, and Pin FMA PDF | HTML Feb 23, 2021
Technical article Understand and apply safety-limiting values for digital isolators PDF | HTML Jan 20, 2021
Certificate ISO6741DWEVM EU Declaration of Conformity (DoC) Jul 31, 2020

Design & development

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