SI8641AB-B-IS

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1. Describe

Silicon Lab's ultra-low power digital isolator series are CMOS devices. Compared with traditional isolation technology, it has significant data rate, propagation delay, power consumption, size, reliability and external BOM advantages. Operating parameters of these products Stable in a wide temperature range and throughout the life cycle of the equipment Easy to design and highly uniform performance. All device versions have Schmitt triggers Input to obtain high noise immunity, and only VDD bypass capacitor is required. All products support data rates up to 1 Mbps and enable input, providing a single Used to enable and disable the point control of the output driver. All products have passed safety certification UL, CSA, VDE and CQC also support withstand ratings up to 2.5 kVRMS. Automotive grades apply to certain part numbers. These products are used There are automotive-specific processes in all steps of the manufacturing process to ensure the robustness and low defect rate required for automotive applications.

2. Feature

    1. High-speed operation

        - DC to 1 Mbps

    2. No need to start initialization

    3. Wide operating power supply voltage

        - 2.5 to 5.5 V

    4. Up to 2500 VRMS isolation

    5. The service life under rated working voltage is 60 years

    6. High electromagnetic immunity

    7. Ultra-low power consumption (typical)

        - 5 V operation: 1.6 mA per channel, 1 Mbps

        - 2.5 V operation: 1 Mbps 1.5 mA per channel

    8. Three-state output with ENABLE

    9. Schmitt trigger input

  10. Transient immunity 50 kV/µs

  11. AEC-Q100 certification

  12. Wide temperature range

        - –40 to 125 °C

  13. RoHS compliant package

        - SOIC-16 wide body

        - SOIC-16 narrow body

        - SOIC-8 narrow body

  14. Provide automotive grade OPN

        - AIAG-compliant PPAP document support

        - IMDS and CAMDS list support

3. Industrial Applications

    1. Industrial automation systems

    2. Medical electronics

    3. Isolated switch mode supplies

    4. Isolated ADC, DAC

    5. Motor control

    6. Power inverters

    7. Communication systems

4. Automotive Applications

    1. On-board chargers

    2. Battery management systems

    3. Charging stations

    4. Traction inverters

    5. Hybrid Electric Vehicles

    6. Battery Electric Vehicles

5. Pin configuration

6. Pin description

7. Output pin terminal

The nominal output impedance of the isolator driver channel is about 50 Ω, ±40%, which is The output driver FET's on-chip series termination resistance and channel resistance. When driving a load affected by the transmission line Will be a factor, the output pins should be properly terminated with controlled impedance PCB traces.

8. Theory of Operation

The operation of Si86xx channels is similar to that of optocouplers, except that the RF carrier is modulated instead of light. This simple architecture provides a powerful isolated data path and does not require special consideration or initialization at startup.