ISOW7842DWE

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1. Describe

ISOW7842DWE is a series of high-performance, four-channel reinforced digital isolators with integrated High-efficiency power converter. Integrated DCDC converter provides up to 650 mW of isolation High power, configurable Suitable for various input and output voltage configurations. Therefore, these devices eliminate the need for a Independent isolated power supply with limited space Isolated design.

ISOW7842DWE series devices provide high electromagnetic immunity and low radiation, while isolating CMOS or LVCMOS digital I/O. The signal isolation channel has a logic input and output buffer. Dual-capacitor silicon dioxide (SiO2) insulation barrier, while power isolation uses an on-chip transformer Separated by thin-film polymers as insulating materials. The various configurations of forward and reverse channels are usable. If the input signal is lost, the default output of the ISOW784x device without the F suffix is high, and Devices with the F suffix are low. These devices help prevent noise currents on data buses, such as RS-485, RS-232, and CAN, or other circuits Enter the local ground and interfere with or damage sensitive circuits. Through innovative chips Design and layout technology, the electromagnetic compatibility of the equipment has been significantly enhanced Simplify system-level ESD, EFT, surge, and emission compliance. High efficiency of power converter Allows operation at a higher ambient temperature. The device is available in a 16-pin SOIC wide body (SOICWB) DWE package.

2. Feature

    1. 100 Mbps data rate

    2. Strong isolation barrier:

        – > 100 years of 1 kVRMS expected life Operating Voltage

        – Up to 5000 VRMS isolation rating

        – Surge capacity up to 10 kVPK

        – ±100 kV/µs minimum CMTI

    3. Integrated high-efficiency DC-DC converter, with On-chip transformer

    4. 3V to 5.5V wide input power range

    5. Regulated 5V or 3.3V output

    6. Up to 0.65W output power

    7. 5 V to 5 V; 5 V to 3.3 V: Available load current ≥ 130 mAh

    8. 3.3 V to 3.3 V: Available load current ≥ 75 mA

    9. 3.3 V to 5 V: Available load current ≥ 40 mA

  10. Soft start to limit inrush current

  11. Overload and short circuit protection

  12. Thermal shutdown

  13. Default output: high and low options

  14. Low propagation delay: 13 ns typical (5V power supply)

  15. Strong electromagnetic compatibility (EMC)

        – System level ESD, EFT and surge immunity

        – ±8 kV IEC 61000-4-2 contact discharge Protection across isolation barriers

        – Low emissions

  16. 16-pin wide SOIC package

  17. Extended temperature range: –40°C to +125°C

  18. Safety related certification:

        – 7071-VPK reinforced isolation, in line with DIN V VDE V 0884-11:2017-01

        – 5000-VRMS isolation for 1 minute, in accordance with UL 1577

        – Conforms to IEC 60950-1, CSA certification of IEC 62368-1 and IEC 60601-1 terminal equipment standard

        – Comply with the CQC certification of GB4943.1-2011

        – According to EN 60950-1 and TUV certification EN 61010-1

3. Application

    1. automated industry

    2. motor control

    3. Grid infrastructure

    4. Medical equipment

    5. Test and measurement

4. Pin configuration

5. Pin function

6. Electrical Characteristics