SLLSF86C May 2018 – March 2022 ISOW1412 , ISOW1432
PRODUCTION DATA
Two options of data rates are provided: ISOW1412 is optimized for maximum 500 kbps and ISOW1432 is suitable for maximum 12 Mbps data rate. These devices do not require any external components other than bypass capacitors to realize an isolated RS-485 port, ideal for long distance communications. Isolation breaks the ground loop between the communicating nodes, allowing for a much larger common mode voltage range. Both signal and power paths are 5-kVRMS isolated per UL1577 and are qualified for reinforced and basic isolation per VDE, TUV, CSA and CQC.
The ISOW14x2 can operate from a single supply voltage of 3 V to 5.5 V by connecting VIO and VDD together on PCB. If lower logic levels are required, 1.71 V to 5.5 V logic supply (VIO) can be separated and independent from the power converter supply (VDD) of 3 V to 5.5 V. These devices support a wide operating ambient temperature range from –40°C to +125°C and are available in 20-pin DFM (SOIC-20 footprint compatible package) offering a minimum of 8-mm creepage and clearance.