ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

The ISO774X is a high-performance quad-channel digital isolator featuring a silicon dioxide (SiO2) insulation barrier that supports isolation voltages up to 5 kVrms. This digital isolator is used for communication between two different power domains to prevent noise currents on data buses or other circuits from entering the local ground, or interfering with and damaging sensitive circuits. The device supports an enable pin that can be used to place the corresponding output in a high-impedance state in multi-master driver applications, thereby reducing power consumption. The ISO774X supports up to four forward channels and two reverse channels. If input power or signal is lost, the ISO774X1 defaults to a high output, while the ISO774X0 defaults to a low output — see the "Functional Modes" section for details. The device achieves high electromagnetic immunity and low emissions at low power consumption. The ISO774X employs innovative chip design and layout to significantly enhance EMC performance, meeting system-level compliance requirements for ESD, EFT, surge, and radiated emissions. The ISO774X family supports both wide-body and narrow-body SOIC-16 packages.

Features

• Safety-related certifications:
  • DIN VDE V 0884-11: 2017-01
  • UL 1577 component recognition
  • CSA certified to IEC 60950-1, IEC 62368-1, IEC 61010-1, and IEC 60601-1 end-product standards
  • CQC certified to GB4943.1-2022
  • TUV certified to EN 60950-1, EN 62368-1, and EN 61010-1
• Enhanced EMC:
  • System-level ESD, EFT, and surge immunity
  • ±8kV IEC 61000-4-2 contact discharge protection across isolation barrier
  • Low emissions
• Data rate: up to 150Mbps
• Wide supply voltage range: 2.5V ~ 5.5V
• Operating temperature range: -40°C ~ 125°C
• Robust isolation barrier:

  • 40-year projected service life

  • Isolation rating up to 5 kVRMS
  • Surge capability up to 8 kV
  • Typical CMTI of ±200 kV/μs
• Default output-high and output-low options
• Low power consumption: typical 1.5mA per channel at 1Mbps
• Low propagation delay: typical 9ns (powered by 5V supply)
• SOIC16 package (wide-body and narrow-body)

Applications

• Industrial Automation
• New Energy Vehicles
• Photovoltaic Inverters
• Motor Control
• Isolated SPI
• General-Purpose Multi-Channel Isolation