Packaging information
| Package | Pins SOIC (DFM) | 20 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 850 | LARGE T&R |
Features for the ISOW1432
- 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%
- VISOOUT accuracy: ±5%
- Additional output current: 20 mA
- Independent power supply for RS-485 & DC-DC
- Logic supply (VIO): 1.71 V to 5.5 V
- Power converter supply ( VDD): 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
Description for the ISOW1432
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.