Overview
Description
The RAA788152 5V half-duplex powered RS-485/RS-422 transceiver features high output drive and high EFT and ESD protection. The device is immune to ±5kV IEC 61000-4-4 EFT transients and can withstand up to ±16.5kV IEC 61000-4-2 ESD strikes without latch-up.
The RAA78815x family includes half and full-duplex transceivers with active-high driver-enable pins and active-low receiver-enable pins. These transceivers support data rates of 115kbps, 1Mbps, and 20Mbps with a performance that is characterized from -40 °C to +85 °C.
Features
- High VOD: 3.1V (Typ.) into RD = 54Ω
- ±5kV EFT immunity of bus I/O pins
- ±16.5kV ESD protection on bus I/O pins
- Supported data rates: 115kbps
- Full fail-safe outputs for open or shorted inputs
- Hot plug capability
- 1/8 unit load
- Allows for up to 512 transceivers on the bus
- Low supply current (driver disabled): 550μA
- Ultra-low shutdown current: 70nA
Comparison
Applications
Design & Development
Support
Support Communities
FAQs
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What Applications might see EFT Problems?
This type of interference has the potential to occur in a large amount of different electrical systems and devices. The interconnection of relays to power mains offers many situations for potential arching and electrical transients. Commonly they occur in AC Power Mains, Electrical Systems & Subsystems, and Ethernet & RS ...
Oct 11, 2021 -
What is the Standard that tests for EFT Immunity?
The standard that defines the test for assessing a systems’ immunity to fast electrical transients is IEC61000-4-4. This standard defines test voltage waveform, range of test levels, test equipment, test set-up, and test procedure. Its object is to establish a common and reproducible reference for evaluating the ...
Oct 11, 2021 -
How can EFT affect Products and Networks?
RS-485 transceivers are designed to generate and act on signals such as high-speed serial communication data that have timing specifications comparable to that of transient-induced noise. Therefore, transient-induced noise is likely to interfere with these signals. This noise conductively couples into the end equipment via the ...
Oct 11, 2021
Videos & Training
Overview of the key features, advantages and target applications for the RAA78817x family of 3.3V RS-485/422 transceivers with +/-3kV EFT immunity and the RAA78815x family of 5V RS-485/422 transceivers with +/-5KV EFT immunity.