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70-V Fault-Protected RS-485 Transceivers Full-Duplex with -20 to +25 common mode

Same as: SN65HVD1791DG4   This part number is identical to the part number listed above. You can only order quantities of the part number listed above.

US ECCN: EAR99 US/Local Export Classification Number

Inventory: 3,162  

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
SOIC (D) | 14 50 | TUBE
-40 to 105
Package | Pins SOIC (D) | 14
Package qty | Carrier: 50 | TUBE
Operating temperature range (°C) -40 to 105
View TI packaging information

Features for the SN65HVD1791

  • Bus-Pin Fault Protection to:
    • > ±70 V (’HVD1785, 86, 91, 92)
    • > ±30 V (’HVD1787, 93)
  • Common-Mode Voltage Range (–20 V to 25 V)
    More Than Doubles TIA/EIA 485 Requirement
  • Bus I/O Protection
    • ±16 kV JEDEC HBM Protection
  • Reduced Unit Load for Up to 256 Nodes
  • Failsafe Receiver for Open-Circuit, Short-Circuit
    and Idle-Bus Conditions
  • Low Power Consumption
    • Low Standby Supply Current, 1 µA Typical
    • ICC 5 mA Quiescent During Operation
  • Power-Up, Power-Down Glitch-Free Operation
    • Designed for RS-485 and RS-422 Networks

All other trademarks are the property of their respective owners

Description for the SN65HVD1791

These devices are designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. They are also robust to ESD events, with high levels of protection to human-body model specifications.

These devices combine a differential driver and a differential receiver, which operate from a single power supply. In the ’HVD1785, ’HVD1786, and ’HVD1787, the driver differential outputs and the receiver differential inputs are connected internally to form a bus port suitable for half-duplex (two-wire bus) communication. In the 'HVD1793, the driver differential outputs and the receiver differential inputs are separate pins, to form a bus port suitable for full-duplex (four-wire bus) communication. These ports feature a wide common-mode voltage range, making the devices suitable for multipoint applications over long cable runs. These devices are characterized from –40°C to 105°C.

For similar features with 3.3-V supply operation, see the SN65HVD1781 (SLLS877).


Qty Price (USD)
1-99 3.303
100-249 2.693
250-999 2.116
1,000+ 1.795

Additional package qty | carrier options

Package qty | Carrier 2,500 | LARGE T&R
Inventory 1,700
Qty | Price (USD) 1ku | 1.496 1-99 3.022 100-249 2.648 250-999 1.857 1,000+ 1.496
Custom reel may be available