ISO7740 - Texas Instruments

ISO7740 Robust-EMC Reinforced Quad-Channel Digital Isolators

The ISO774x devices are high-performance, quadchannel digital isolators with 5000VRMS (DW package) and 3000VRMS (DBQ package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC. The ISO7741B device is designed for applications that require basic insulation ratings only. The ISO774.

Features

• 100Mbps data rate
• Robust isolation barrier:
  – >30-year projected lifetime at 1500VRMS working voltage
  – Up to 5000VRMS isolation rating
  – Up to 12.8kV surge capability
  – ±100kV/μs typical CMTI
• Wide supply range: 2.25V to 5.5V
• 2.25V to 5.5V level translation
• Default output high (ISO774x) and low (ISO774xF) options
• Wide temperature range:
  –55°C to 125°C
• Low power consumption, typical 1.5mA per channel at 1Mbps
• Low propagation delay: 10.7ns typical (5V Supplies)
• Robust electromagnetic compatibility (EMC)
  – System-level ESD, EFT, and surge immunity
  – ±8kV IEC 61000-4-2 contact di.