ISO7740-Q1

• 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
  • Documentation available to aid functional safety system design: ISO7740-Q1, ISO7741-Q1, ISO7742-Q1
• 100 Mbps data rate
• Robust isolation barrier:
  • >100-year projected lifetime at 1500 V_RMS working voltage
  • Up to 5700 V_RMS 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

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The ISO774x-Q1automotive devicesare high-performance, quad-channel digital isolators with 5700 V_RMS (DWW package), 5000 V_RMS(DW package) and 3000 V_RMS (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.