ISO7342-Q1 - Automotive, Low Power, Quad-Channel 2/2 Digital Isolator

The ISO734x-Q1 familyof devices provides galvanic isolation up to 3000 V_RMS for 1 minute per UL1577 and 4242 V_PK per VDE V 0884-10. These devices have four isolatedchannels comprised of logic input and output buffers separated by a silicon dioxide(SiO₂) insulation barrier.

The ISO7340-Q1 devicehas four channels in forward direction, the ISO7341-Q1 device has three forward and one reverse-direction channels, andthe ISO7342-Q1 device has twoforward and two reverse-direction channels. In case of input power or signal loss, the defaultoutput is low for orderable part numbers with suffix F andhigh for orderable part numbers without suffix F.See the Device Functional Modes section for furtherdetails.

Used in conjunction with isolated power supplies, these devices help prevent noisecurrents on a data bus or other circuits from entering the local ground and interfering with ordamaging sensitive circuitry. The ISO734x-Q1 device has integrated noise filter for harsh industrialenvironment where short noise pulses may be present at the device input pins. TheISO734x-Q1 device has TTL inputthresholds and operates from 3-V to 5.5-V supply levels. Through innovative chip design and layouttechniques, electromagnetic compatibility of the ISO734x-Q1 family of devices has been significantly enhanced to enablesystem-level ESD, EFT, surge, and emissions compliance.

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
  • Device HBM Classification Level 3A
  • Device CDM Classification Level C6
• Signaling Rate: 25 Mbps
• Integrated Noise Filter on the Inputs
• Default Output High and Low Options
• Low Power Consumption, Typical I_CC per Channel at 1 Mbps:
  • ISO7340-Q1: 0.9 mA (5-V Supplies),
    0.7 mA (3.3-V Supplies)
  • ISO7341-Q1: 1.2 mA (5-V Supplies),
    0.9 mA (3.3-V Supplies)
  • ISO7342-Q1: 1.3 mA (5-V Supplies),
    0.9 mA (3.3-V Supplies)
• Low Propagation Delay: 31 ns
  Typical (5-V Supplies)
• 3.3-V and 5-V Level Translation
• 70-KV/µs Transient Immunity, Typical (5-V Supplies)
• Robust Electromagnetic Compatibility (EMC)
  • System-level ESD, EFT, and Surge Immunity
  • Low Emissions
• Operates from 3.3-V and 5-V Supplies
• Wide-Body SOIC-16 Package
• Safety-Related Certifications:
  • 4242-V_PK Basic Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
  • 3-KV_RMS Isolation for 1 minute per UL 1577
  • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 End Equipment Standards
  • GB4943.1-2011 CQC Certified

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