SN65HVD1791DR
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Texas Instruments SN65HVD1791DR

Manufacturer No:
SN65HVD1791DR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC TRANSCEIVER FULL 1/1 14SOIC
Delivery:
Payment:
iso14001
iso45001
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Product Introduction

Overview

The SN65HVD1791DR is a 70-V fault-protected RS-485 transceiver designed by Texas Instruments. This device is part of the SN65HVD17xx family and is characterized by its robustness against overvoltage faults and ESD events. It combines a differential driver and a differential receiver, operating from a single power supply, making it suitable for full-duplex (four-wire bus) communication. The SN65HVD1791DR is packaged in a 14-pin SOIC (D) package and operates over a wide temperature range of –40°C to 105°C.

Key Specifications

Parameter Value Unit
Package SOIC (D) -
Pins 14 -
Operating Temperature Range –40 to 105 °C
Bus-Pin Fault Protection ±70 V V
Common-Mode Voltage Range –20 to 25 V
ESD Protection ±16 kV JEDEC HBM V
Signaling Rate 115 kbps -
Maximum Number of Nodes Up to 256 -
Supply Voltage 4.5 to 5.5 V
Quiescent Supply Current 5 mA -
Standby Supply Current 1 µA (typical) -

Key Features

  • Bus-Pin Fault Protection up to ±70 V
  • Wide Common-Mode Voltage Range (–20 V to 25 V)
  • Bus I/O Protection and ±16 kV JEDEC HBM ESD Protection
  • Reduced Unit Load for up to 256 Nodes
  • Failsafe Receiver for Open-Circuit, Short-Circuit, and Idle-Bus Conditions
  • Low Power Consumption with Low Standby Supply Current (1 µA typical)
  • Power-Up, Power-Down Glitch-Free Operation

Applications

The SN65HVD1791DR is designed for use in RS-485 and RS-422 networks. It is suitable for multipoint applications over long cable runs due to its wide common-mode voltage range. Typical applications include industrial automation, process control systems, and any environment where robust and reliable serial communication is required.

Q & A

  1. What is the primary function of the SN65HVD1791DR?

    The SN65HVD1791DR is a fault-protected RS-485 transceiver that combines a differential driver and a differential receiver for full-duplex communication.

  2. What is the operating temperature range of the SN65HVD1791DR?

    The device operates over a temperature range of –40°C to 105°C.

  3. What level of bus-pin fault protection does the SN65HVD1791DR offer?

    The device offers bus-pin fault protection up to ±70 V.

  4. What is the common-mode voltage range of the SN65HVD1791DR?

    The common-mode voltage range is –20 V to 25 V.

  5. How many nodes can the SN65HVD1791DR support?

    The device can support up to 256 nodes.

  6. What is the signaling rate of the SN65HVD1791DR?

    The signaling rate is 115 kbps.

  7. What is the quiescent supply current of the SN65HVD1791DR?

    The quiescent supply current is 5 mA.

  8. Does the SN65HVD1791DR have ESD protection?

    Yes, it offers ±16 kV JEDEC HBM ESD protection.

  9. What type of packaging does the SN65HVD1791DR come in?

    The device is packaged in a 14-pin SOIC (D) package.

  10. Is the SN65HVD1791DR suitable for use in safety-critical applications?

    It is designed to be robust, but specific use in safety-critical applications should be evaluated based on the device's specifications and the application's requirements.

Product Attributes

Type:Transceiver
Protocol:RS422, RS485
Number of Drivers/Receivers:1/1
Duplex:Full
Receiver Hysteresis:50 mV
Data Rate:115Kbps
Voltage - Supply:4.5V ~ 5.5V
Operating Temperature:-40°C ~ 105°C
Mounting Type:Surface Mount
Package / Case:14-SOIC (0.154", 3.90mm Width)
Supplier Device Package:14-SOIC
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Similar Products

Part Number SN65HVD1791DR SN65HVD1792DR SN65HVD179DR SN65HVD1794DR SN65HVD1793DR SN65HVD1781DR SN65HVD1791D
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active Active Active
Type Transceiver Transceiver Transceiver Transceiver Transceiver Transceiver Transceiver
Protocol RS422, RS485 RS422, RS485 RS422, RS485 RS422, RS485 RS422, RS485 RS422, RS485 RS422, RS485
Number of Drivers/Receivers 1/1 1/1 1/1 1/1 1/1 1/1 1/1
Duplex Full Full Full Half Full Half Full
Receiver Hysteresis 50 mV 50 mV 50 mV 50 mV 50 mV 50 mV 50 mV
Data Rate 115Kbps 1Mbps 25Mbps 115Kbps 10Mbps 1Mbps 115Kbps
Voltage - Supply 4.5V ~ 5.5V 4.5V ~ 5.5V 4.5V ~ 5.5V 4.5V ~ 5.5V 4.5V ~ 5.5V 3.15V ~ 5.5V 4.5V ~ 5.5V
Operating Temperature -40°C ~ 105°C -40°C ~ 105°C -40°C ~ 85°C -40°C ~ 105°C -40°C ~ 105°C -40°C ~ 125°C -40°C ~ 105°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 14-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width)
Supplier Device Package 14-SOIC 14-SOIC 8-SOIC 8-SOIC 14-SOIC 8-SOIC 14-SOIC

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