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4-channel digital isolators with integrated isolated DC-DC power supplies

The NSIP894x family are 4-channel digital isolators with integrated isolated DC-DC power supplies. The isolated DC-DC power supply provides up to 500mW of output power from the on-chip transformer. The feedback PWM signal is sent to the primary side by a digital isolator based on NOVOSENSE capacitive isolation technology. Highly integrated solutions can help simplify system design and improve reliability. The product has passed UL1577 certification, supports 4500Vrms insulation voltage, while providing high EMI immunity and low radiation. The data rate of this series of products is up to 150Mbps, and the CMTI is up to 150kV/us. And provide 5V to 5V, 5V to 3.3V, 3.3V to 3.3V conversion mode, the output voltage can be set through the SEL pin.

Product Features

  • Maximum 4500Vrms insulation voltage

  • Supply voltage: 3.3V to 5.5V

  • 5V to 5V, 5V to 3.3V, support 100mA load current

  • Over-current and over-heat protection

  • Data rate: DC to 150Mbps

  • High CMTI: 150kV/us

  • Communication delay: <15ns

  • High system-level EMC performance: enhanced system-level ESD, EFT, anti-surge capability

  • Operation temperature: -40℃~125℃

Safety Certificate

  • UL1577 qualified: 4.5kVrms for 1 minute

  • CQC qualified: comply with GB4943.1-2011

  • CSA qualified: Components Compliant with 5A

  • VDE qualified: DIN V VDE V 0884-11:2017-1


  • Industrial Automation System

  • Isolated SPI, RS232, RS485

  • General Multi-Channel Isolation

Functional Block Diagram


For more product information, please contact us.


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Personal Electronics
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Signal Chain
Power Management
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