ISO7740-Q1 - Automotive, High Speed, Robust EMC Quad-Channel Digital Isolators

The ISO774x-Q1 devicesare high-performance, quad-channel digital isolators with 5000 V_RMS (DWpackage) and 3000 V_RMS (DBQ package) isolation ratings per UL 1577. Thisfamily of devices has reinforced insulation ratings according to VDE, CSA, TUV and CQC.

The ISO774x-Q1 devicesprovide high
electromagnetic immunity and low emissions at low power consumption, while isolating CMOS orLVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated bysilicon dioxide (SiO₂) insulation barrier. This device comes with enablepins which can be used to put the respective outputs in high impedance for multi-master drivingapplications and to reduce power consumption. The ISO7740-Q1 device has all fourchannels in the same direction, the ISO7741-Q1 device has three forward and one reverse-direction channels, andthe ISO7742-Q1 device has twoforward and two reverse-direction channels. If the input power or signal is lost, default output ishigh for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for furtherdetails.

Used in conjunction with isolated power supplies, this device helps prevent noisecurrents on a data bus or other circuits from entering the local ground and interfering with ordamaging sensitive circuitry. Through innovative chip design and layout techniques, electromagneticcompatibility of the ISO774x-Q1devices have been significantly enhanced to ease system-level ESD, EFT, surge, and emissionscompliance. The ISO774x-Q1devices are available in 16-pin SOIC and QSOP packages.

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
• Signaling Rate: Up to 100 Mbps
• Wide Supply Range: 2.25 V to 5.5 V
• 2.25-V to 5.5-V Level Translation
• Default Output High and Low Options
• Low Power Consumption, Typical 1.5 mA per Channel at 1 Mbps
• Low Propagation Delay: 10.7 ns Typical
  (5-V Supplies)
• High CMTI: ±100 kV/µs Typical
• Robust Electromagnetic Compatibility (EMC)
  • System-Level ESD, EFT, and Surge Immunity
  • Low Emissions
• Isolation Barrier Life: >40 Years
• Wide-SOIC (DW-16) and QSOP (DBQ-16) Package Options
• Safety-Related Certifications:
  • DIN V VDE V 0884-11:2017-01
  • UL 1577 Component Recognition Program
  • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 60601-1 End Equipment Standards
  • CQC Approval per GB4943.1-2011
  • TUV Certification according to EN 60950-1 and EN 61010-1
  • All Certifications Complete except CQC Approval of DBQ-16 Package Devices

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