ISOW1412中文资料具有集成电源的低辐射、500kbps、增强型隔离式 RS-485/RS-422 收发器数据手册TI规格书

描述 Description

The ISOW14x2 devices are galvanically-isolated RS-485/RS-422 transceiver s 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.

特性 Features

• Meets or exceeds the requirements of the TIA/ EIA-485A standard
• ISOW1412 : 500 kbps
• Integrated low-emissions DC-DC converter with low-emissions, low-noise
• Low frequency power converter at 25 MHz enabling low noise performance
• Additional 2 Mbps GPIO channel
• Typical efficiency: 46%
• Additional output current: 20 mA
• Independent power supply for RS-485 & DC-DC
• Power converter supply ( VDD): 3 V to 5.5 V
• RS-485 with PROFIBUS compatibility
• 1/8 unit load: up to 256 nodes on bus
• Reinforced and Basic isolation options
• High ESD bus protection
• IEC 61000-4-2 contact discharge: ±8 kV
• Operating temperature range: -40°C to 125°C
• 20-pin wide SOIC package
• Section 8.6:
• UL 1577 component recognition program
• IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB 4943.1-2011 certifications