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NEW ISO6421-Q1 ACTIVE Automotive, robust EMC, reinforced/Basic 2-channel, 1/1 digital isolator with 250kV/us CMTI, 150Mbps Cost-effective solution; 250kV/us CMTI and 150 Mbps that supports most digital isolation applications

Product details

Rating Automotive Integrated isolated power No Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Features 1.8V I/O Data rate (max) (Mbps) 50 Protocols GPIO, PWM, 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 Basic Working isolation voltage (VIOWM) (Vrms) 450 Withstand isolation voltage (VISO) (Vrms) 3000 Surge isolation voltage (VIOSM) (kVPK) 6.5 CMTI (min) (kV/µs) 100 Default output High, Low Creepage (min) (mm) 4 Current consumption per channel (DC) (typ) (mA) 1 Current consumption per channel (1 Mbps) (typ) (mA) 1.1 Operating temperature range (°C) -40 to 125 Transient isolation voltage (VIOTM) (VPK) 4242 Clearance (min) (mm) 4
Rating Automotive Integrated isolated power No Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Features 1.8V I/O Data rate (max) (Mbps) 50 Protocols GPIO, PWM, 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 Basic Working isolation voltage (VIOWM) (Vrms) 450 Withstand isolation voltage (VISO) (Vrms) 3000 Surge isolation voltage (VIOSM) (kVPK) 6.5 CMTI (min) (kV/µs) 100 Default output High, Low Creepage (min) (mm) 4 Current consumption per channel (DC) (typ) (mA) 1 Current consumption per channel (1 Mbps) (typ) (mA) 1.1 Operating temperature range (°C) -40 to 125 Transient isolation voltage (VIOTM) (VPK) 4242 Clearance (min) (mm) 4
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Functional Safety-Capable
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: –40°C to +125°C ambient operating temperature range
  • Meets VDA320 isolation requirements
  • 50Mbps data rate
  • Robust isolation barrier:
    • High lifetime at 1060VRMS working voltage
    • Up to 5000VRMS isolation rating
    • ±150kV/µs typical CMTI
  • Wide supply range: 1.71V to 1.89V and 2.25V to 5.5V
  • 1.71V to 5.5V level translation
  • Default output High (ISO672x-Q1) and Low (ISO672xF-Q1) Options
  • 1.8mA per channel typical at 1Mbps
  • Low propagation delay: 11ns typical
  • Robust electromagnetic compatibility (EMC)
    • System-Level ESD, EFT, and surge immunity
    • ±8kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Low emissions
  • Narrow-SOIC (D-8) and Wide-SOIC (DWV-8) 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
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: –40°C to +125°C ambient operating temperature range
  • Meets VDA320 isolation requirements
  • 50Mbps data rate
  • Robust isolation barrier:
    • High lifetime at 1060VRMS working voltage
    • Up to 5000VRMS isolation rating
    • ±150kV/µs typical CMTI
  • Wide supply range: 1.71V to 1.89V and 2.25V to 5.5V
  • 1.71V to 5.5V level translation
  • Default output High (ISO672x-Q1) and Low (ISO672xF-Q1) Options
  • 1.8mA per channel typical at 1Mbps
  • Low propagation delay: 11ns typical
  • Robust electromagnetic compatibility (EMC)
    • System-Level ESD, EFT, and surge immunity
    • ±8kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Low emissions
  • Narrow-SOIC (D-8) and Wide-SOIC (DWV-8) 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 ISO672x-Q1 devices are high-performance, dual-channel digital isolators designed for cost sensitive applications requiring up to 5000VRMS (DWV package) and 3000VRMS (D package) isolation ratings per UL 1577. These devices are also certified by VDE, TUV, CSA, and CQC.

The ISO672x-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 TI’s double capacitive silicon dioxide (SiO2) insulation barrier. The ISO6720-Q1 device has 2 isolation channels with both channels in the same direction. The ISO6721-Q1 device has 2 isolation channels with 1 channel in each direction. 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 ISO672x-Q1 devices are high-performance, dual-channel digital isolators designed for cost sensitive applications requiring up to 5000VRMS (DWV package) and 3000VRMS (D package) isolation ratings per UL 1577. These devices are also certified by VDE, TUV, CSA, and CQC.

The ISO672x-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 TI’s double capacitive silicon dioxide (SiO2) insulation barrier. The ISO6720-Q1 device has 2 isolation channels with both channels in the same direction. The ISO6721-Q1 device has 2 isolation channels with 1 channel in each direction. 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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open-in-new Compare alternates
Same functionality with different pin-out to the compared device.
ISO6721-Q1 ACTIVE Automotive, 2-channel, 1/1, digital isolator with 50Mbps and 1.8V logic support Same package as device with opposite channel directions and different pinout

Technical documentation

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Top documentation Type Title Format options Date
* Data sheet ISO672x-Q1 General Purpose Reinforced and Basic Dual-Channel Automotive Digital Isolators With Robust EMC datasheet (Rev. I) PDF | HTML Aug 20, 2026
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. AA) Jun 11, 2026
Certificate TUV Certificate for Isolation Devices (Rev. M) May 7, 2026
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) May 7, 2026
Certificate CQC Certificate for ISOxxD (Rev. B) Aug 19, 2025
Certificate CSA Certificate for ISO6721RxD (Rev. A) Feb 15, 2023

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