Maxim Integrated MAX22517 Dual-Channel Digital Galvanic Isolators have an integrated field-side supply using Maxim’s proprietary process technology. The field-side power is supplied by the logic-side using an integrated isolated DC-DC converter. This approach eliminates the bulky and expensive external isolated power supply when the power demand of the field side is small.

FEATURES

• Robust protection in small footprint
  • Integrated isolated field-side supply
  • Integrated galvanic digital isolation
  • Integrated surge and short protection with external series resistor
    • 24VAC short protection
    • ±1kV line-to-ground and ±2kV line-to-line surge tolerance (1.2/50μs waveform)
  • Compact 8-pin wide-body SOIC package (5.5mm creepage)
• Robust galvanic isolation of digital signals
  • 3.5kVRMS isolation voltage for 60s (VISO)
  • 445VRMS continuous working voltage (VIOWM)

• Design flexibility
  • 220μA field-side supply external load capability
  • 3V to 5.5V logic-side supply
  • -40°C to +125°C operating temperature range

APPLICATIONS

• Industrial IoT
• Industrial networking systems
• Building automation
• Medical equipment

BLOCK DIAGRAM