ISO7731 - Texas Instruments

ISO7731 Robust-EMC Reinforced and Basic Triple-Channel Digital Isolators

The ISO773x devices are high-performance, triplechannel digital isolators with 5000 VRMS (DW package) and 3000 VRMS (DBQ package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC. The ISO7731B device is designed for applications that require basic insulation ratings only. The I.

Features

• 100 Mbps data rate
• Robust isolation barrier:
  – >100-year projected lifetime at 1500 VRMS working voltage
  – Up to 5000 VRMS isolation rating
  – Up to 12.8 kV surge capability
  – ±100 kV/μs typical CMTI
• Wide supply range: 2.25 V to 5.5 V
• 2.25-V to 5.5-V Level translation
• Default output high (ISO773x) and low (ISO773xF) options
• Wide temperature range:
  –55°C to +125°C
• Low power consumption, typical 1.5 mA per channel at 1 Mbps
• Low propagation delay: 11 ns Typical (5-V Supplies)
• Robust electromagnetic compatibility (EMC)
  – System-level ESD, EFT, and surge immunity
  – ±8 kV IEC 61000-.