New Differential Transceiver Family with Enhanced ESD Protection Deliver High EFT Immunity for Industrial Applications

Published  October 14, 2021   0
RAA78815x Series of 5V differential RS-485/422 Transceivers from Renesas Electronics

Renesas Electronics Corporation has introduced the RAA78815x Family of 5V differential RS-485/422 transceivers with high output drive and additional immunity for EFT. These six new full and half duplex ruggedized devices with ESD protection up to ±16,000V are the ideal solution for noise-sensitive industrial communication networks and meet both the RS-485 and RS-422 communication standards. These Transceivers are suited for a variety of industrial network, process control network, building automation, long-haul network, and security camera network applications.

These new high-speed transceivers feature bus leakage currents of maximum 125 μA thereby, constituting a true 1/8-unit load and support data rates of 115kbps, 1Mbps, and 20Mbps with a performance that is characterized from -40°C to +85°C. With EFT immunity of ±5000V, the RAA78815x family delivers exceptional differential output voltages, featuring 3.1V into the RS-485-required 54Ω load. 

Key Features of the RAA78815x Family

  • ±5000V EFT immunity
  • ±16,000V ESD immunity
  • 3.1V (typ) into Rd = 54Ω
  • Low 125 μA bus current, 550 μA supply current, and 70nA shutdown current
  • Ultra-small 3x5 mm MSOP and 6 x 8.6 mm SOIC package
  • Support for multiple data rates and both full (RAA788150, RAA788153, and RAA788156) and half (RAA788152, RAA788155, and RAA788158) duplex modes

The RAA78815x transceivers are now available in MSOP and SOIC packages with pin counts ranging from 8 to 14 and an evaluation board for the new transceiver family is also available.