ISO7342CQDWRQ1 Isolators

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1. Description

The ISO7342CQDWRQ1 family of devices provides galvanic isolation up to 3000 VRMS for 1 minute per UL 1577 and 4242 VPK per VDE V 0884-10. These devices have four isolated channels comprised of logic input and output buffers separated by a silicon dioxide (SiO2) insulation barrier.The ISO7340-Q1 device has four channels in forward direction, the ISO7341-Q1 device has three forward and one reverse-direction channels, and the ISO7342CQDWRQ1 device has two forward and two reversedirection channels. In case of input power or signal loss, the default output is low for orderable part numbers with suffix F and high for orderable part numbers without suffix F. See the Device Functional Modes section for further details.

2. Features

    1. Qualified for Automotive Applications

    2. 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

    3. Signaling Rate: 25 Mbps

    4. Integrated Noise Filter on the Inputs

    5. Default Output High and Low Options

    6. Low Power Consumption, Typical ICC 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)

    7. Low Propagation Delay: 31 ns Typical (5-V Supplies)

    8. 3.3-V and 5-V Level Translation

    9. 70-KV/μs Transient Immunity, Typical (5-V Supplies)

  10. Robust Electromagnetic Compatibility (EMC)

        – System-level ESD, EFT, and Surge Immunity

        – Low Emissions

  11. Operates from 3.3-V and 5-V Supplies

  12. Wide-Body SOIC-16 Package

3. Applications

    1. Optocoupler Replacement in:

        – Industrial Fieldbus

           – Profibus

           – Modbus

           – DeviceNet Data Buses

        – Servo Control Interface

        – Motor Control

        – Power Supplies

        – Battery Packs