ISO7741FQDBQQ1

The ISO774x-Q1 automotive device s are high-performance, quad-channel digital isolator s 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 device s 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 (SiO 2) insulation barrier. These device s 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-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.

Key Features

• 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 ( ISO774 x) and low ( ISO774 xF) 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 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