SN65LBC184

illustrate

The SN75LBC184 and SN65LBC184 are differential data in the industry standard footprint of the SN75176 with built-in line transceiver protection against high energy noise transients. This feature provides a better immunity, coupled with a significant increase in reliability against data line transient noise in most existing devices. The use of these circuits provides a reliable, low-cost, direct-coupled (without isolation transformer) data line interface without the need for any external components.

The SN75LBC184 and SN65LBC184 can withstand 400W peak (typical) overvoltage transients. The traditional combination of IEC 61000-4-5 waves is called simulating overvoltage transients and modes of transient switching and secondary lightning strikes caused by unidirectional surge overvoltage.

characteristic

• Comprehensive transient voltage rejection
• The ESD protection of the bus terminals exceeds:
  • Complies with IEC 61000-4-2 ± 30 kV, contact discharge
  • Complies with IEC 61000-4-2 ± 15 kV, air gap discharge
  • ± 15 kV EIA/JEDEC mannequin
• The circuit 400 W peak is protected against damage according to IEC 61000-4-5 (typical).
• Controlling the driver output voltage slew rate allows for longer cable length stubs
• 250 - kbps in electrical noise environments
• Open fail-safe receiver design
• 1/4 unit load allows 128 devices to be connected on the bus
• Thermal shutdown protection
• Power-Up/-Down glitch protection
• Each transceiver meets or exceeds the requirements of the TIA/EIA-485 (RS-485 interface) and ISO/IEC 8482:1993(E) standards
• Low supply current disabled 300μA maximum
• Pin compatible with SN75176
• Scope of application:
  • Industrial networks
  • ammeter
  • Motor control