• Meets or exceeds the requirements of the TIA/ EIA-485A standard
• Data rates
  • ISOW1412 : 500 kbps
  • ISOW1432 : 12 Mbps
• Integrated low-emissions DC-DC converter with low-emissions, low-noise
  • Meets CISPR 32 Class B and EN 55032 Class B with margin on a two-layer PCB
  • Low frequency power converter at 25 MHz enabling low noise performance
• Additional 2 Mbps GPIO channel
• High efficiency output power
  • Typical efficiency: 46%
  • V_ISOOUT accuracy: ±5%
  • Additional output current: 20 mA
• Independent power supply for RS-485 & DC-DC
  • Logic supply (V_IO): 1.71 V to 5.5 V
  • Power converter supply ( V_DD): 3 V to 5.5 V
• RS-485 with PROFIBUS compatibility
  • Open, short, and idle bus failsafe
  • 1/8 unit load: up to 256 nodes on bus
  • Glitch-free power up and power down
• Reinforced and Basic isolation options
• High CMTI: 100-kV/µs (typical)
• High ESD bus protection
  • HBM: ±16 kV
  • IEC 61000-4-2 contact discharge: ±8 kV
• Operating temperature range: -40°C to 125°C
• Current limit and thermal shutdown
• 20-pin wide SOIC package

• Section 8.6:
  • VDE reinforced and basic insulation per DIN VDE V 0884-11:2017-01
  • UL 1577 component recognition program
  • IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB 4943.1-2011 certifications

• Factory automation
• Building automation
• Industrial transport
• Solar inverters, protection relay
• Motor drives

The ISOW14x2 devices are galvanically-isolated RS-485/RS-422 transceivers with a built-in isolated DC-DC converter, that eliminates the need for a separate isolated power supply in space constrained isolated designs. The low-emissions, isolated DC-DC converter meets CISPR 32 radiated emissions Class B standard with just two ferrite beads on a simple two-layer PCB. Additional 20 mA output current can be used to power other circuits on the board. An integrated 2 Mbps GPIO channel helps remove any additional digital isolator or optocoupler for diagnotstics, LED indication or supply monitoring.