Features
- High VOD: 3.1V (Typ.) into RD = 54Ω
- ±5kV EFT immunity of bus I/O pins
- ±10kV ESD protection on bus I/O pins
- Supported data rates: 20Mbps
- 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
RAA788156 - Typical Operating Circuit for Full-Duplex Transceiver
Description
The RAA788156 5V full-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.
Parameters
| Attributes | Value |
|---|---|
| Temp. Range (°C) | -40 to +105°C |
| Devices Allowed on Bus | 256 |
Application Block Diagrams
 | 48V BLDC Motor Position Control Efficient BLDC motor system with precise control, rapid wake-up, and seamless component integration. |
Additional Applications
- Industrial networks in factory automation
- Building automation: lighting, elevators, HVAC
- Industrial process control networks
- Security camera networks
- Networks with star topology
- Long-haul networks in coal mines and oil rigs
- High node-count networks
- Automated utility e-meter reading systems
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READ2304G
High-Drivability, High-Slew Rate, Input Output Full Range, CMOS Dual Operational Amplifier, VIO ≤ ±6mV, SR = 8V/μs
Datasheet
| Part Number | Status | Samples | Stock | RoHS | Package | Budgetary Price (USD) | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pitch (mm) | Pkg. Dimensions (mm) | Pb (Lead) Free | Pb Free Category | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RAA7881562GSP#AB0 | Active | Available | In Stock | RoHS:EN | SOIC | 1ku | $0.81 | 14# | Tube | 3 | 1.3mm | 8.7 x 3.9 x 0.00 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | CHINA, TAIWAN | USA |
| RAA7881562GSP#HB0 | Active | Available | Out of Stock | RoHS:EN | SOIC | 1ku | $0.81 | 14# | Reel | 3 | 1.3mm | 8.7 x 3.9 x 0.00 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | CHINA, TAIWAN | USA |
| RAA7881562GSU#AB0 | Active | Available | In Stock | RoHS:EN | MSOP | 1ku | $0.81 | 10# | Tube | 1 | 0.5mm | 3.0 x 3.0 x 0.85 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | MALAYSIA | USA |
| RAA7881562GSU#HB0 | Active | N/A | In Stock | RoHS:EN | MSOP | 1ku | $0.81 | 10# | Reel | 1 | 0.5mm | 3.0 x 3.0 x 0.85 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | MALAYSIA | USA |
Complete Your Design
Explore complementary products to elevate your design
READ2304G
High-Drivability, High-Slew Rate, Input Output Full Range, CMOS Dual Operational Amplifier, VIO ≤ ±6mV, SR = 8V/μs
Datasheet
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- TrainingPDF 719 KB R15TB0008EU0100 Rev.1.00 Dec 18, 2023
- TrainingPDF 762 KB R15TB0007EU0100 Rev.1.00 Dec 04, 2023
- TrainingPDF 208 KB R15TB0004EU0100 Rev.1.00 Oct 26, 2023
- TrainingPDF 405 KB R15TB0003EU0100 Rev.1.00 Jun 26, 2023
- TrainingPDF 239 KB R15TB0002EU0100 Rev.1.00 Jun 21, 2023
- Product Change NoticePDF 178 KB Jun 17, 2022
- Technical BriefPDF 188 KB R70TB0002EU0100 Rev.1.00 May 17, 2022
- Application NotePDF 472 KB R15AN0006EU0100 Rev.1.00 Jun 09, 2021AI-generated Summary: The RAA78815x family of 5V RS-485/RS-422 transceivers demonstrates exceptional immunity to Electrical Fast Transients (EFT) as defined by IEC61000-4-4. Testing applies bursts of high-amplitude, short rise-time pulses at repetition rates of 5kHz and 100kHz, simulating real-world electrical noise. The transceivers maintain normal operation and recover quickly after EFT events, confirmed by both laboratory oscilloscope measurements and automated parametric tests. The devices withstand EFT voltages up to 5kV, achieving the highest IEC special test level, ensuring robust performance in noisy industrial environments. Detailed test setups, waveforms, and results validate their high immunity and reliability under fast transient disturbances.
- Application NotePDF 178 KB r15an0002eu-rs-485-transient-protection Oct 28, 2019
- TrainingPDF 156 KB tb506 Jun 25, 2019The RS-485 standard specifies the electrical characteristics of differential drivers and receivers in multi-point networks but does not explain their functional principles. This document explains how the differential line signals are generated by the driver and processed by the receiver.
- White PaperIndustrial PC designs increasingly demand compact form factors and flexible communication interfaces. This paper explores how modern dual-protocol transceivers support both RS-232 and RS-485 standards while offering high integration and advanced configuration options. It also presents application examples that illustrate their versatility in industrial systems.
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- Application NotePDF 472 KB R15AN0006EU0100 Rev.1.00 Jun 09, 2021AI-generated Summary: The RAA78815x family of 5V RS-485/RS-422 transceivers demonstrates exceptional immunity to Electrical Fast Transients (EFT) as defined by IEC61000-4-4. Testing applies bursts of high-amplitude, short rise-time pulses at repetition rates of 5kHz and 100kHz, simulating real-world electrical noise. The transceivers maintain normal operation and recover quickly after EFT events, confirmed by both laboratory oscilloscope measurements and automated parametric tests. The devices withstand EFT voltages up to 5kV, achieving the highest IEC special test level, ensuring robust performance in noisy industrial environments. Detailed test setups, waveforms, and results validate their high immunity and reliability under fast transient disturbances.
- Application NotePDF 178 KB r15an0002eu-rs-485-transient-protection Oct 28, 2019
- White PaperIndustrial PC designs increasingly demand compact form factors and flexible communication interfaces. This paper explores how modern dual-protocol transceivers support both RS-232 and RS-485 standards while offering high integration and advanced configuration options. It also presents application examples that illustrate their versatility in industrial systems.
- Application NotePDF 513 KB an1991 Mar 06, 2018AI-generated Summary: The document explains the design of LED drive circuits for high-speed digital optocouplers in RS-485 interfaces, focusing on common-mode rejection (CMR) improvement by balancing impedance with two resistors. It details an isolated RS-485 interface using PS9924 optocouplers and ISL3155 transceivers, highlighting dominant/recessive mode operation and bus arbitration. It provides calculations for current setting resistors and collector resistors to optimize performance, minimize propagation delay, and reduce pulse width distortion for reliable data transmission up to 10Mbps.
- Application NotePDF 826 KB an1990 Jan 26, 2018AI-generated Summary: J1708 messages consist of Message Identification characters, data characters, and a checksum, with lengths from 2 to 21 characters. Each character uses 10 bits following the 8-N-1 UART format. Messages have assigned priorities affecting bus access time, where higher priority messages access the bus faster. Collision detection occurs when multiple nodes transmit simultaneously, triggering retry procedures. Modern microcontrollers like Renesas RL78 support fault-protected bus nodes using transceivers such as the ISL32455E, which offers high immunity to overvoltage and wide common-mode voltage range protection.View More (11)
Application Notes & White Papers (11)
- Product Change NoticePDF 178 KB Jun 17, 2022
- Product AdvisoryPDF 106 KB PA16061 Jun 08, 2016
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- TrainingPDF 719 KB R15TB0008EU0100 Rev.1.00 Dec 18, 2023
- TrainingPDF 762 KB R15TB0007EU0100 Rev.1.00 Dec 04, 2023
- TrainingPDF 208 KB R15TB0004EU0100 Rev.1.00 Oct 26, 2023View More (10)
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- Technical BriefPDF 188 KB R70TB0002EU0100 Rev.1.00 May 17, 2022
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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.
News & Blog Posts
Knowledge Base
-
What is the EFT Performance of Renesas's new RAA78815x Family of RS-485/422 Transceivers?
... EFT Test with 5kHz Repetition Rate Test Level Test Voltage (kV) Repetition Frequency (kHz) Transceiver 1 0.25 5 or 100 RAA788150 RAA788152 RAA788153 RAA788155 RAA788156 RAA788158 2 0.5 5 or 100 3 1 5 or 100 4 2 5 or 100 X 5 5 and 100 Table 1 ...
Oct 11, 2021
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