70-V Fault-Protected RS-485 Transceivers Full-Duplex with -20 to +25 common mode - SN65HVD1791

SN65HVD1791 (ACTIVE)

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

 

Description

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).

Features

  • 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
  • APPLICATIONS
    • Designed for RS-485 and RS-422 Networks

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Parametrics Compare all products in RS-485/RS-422

 
Supply Voltage(s) (Nom) (V)
No. of TX
No. of RX
Duplex
Isolated
Signaling Rate (Max) (Mbps)
HBM ESD (kV)
IEC 61000-4-2 Contact (+/- kV)
Number of Nodes
Common Mode Range
Fault Protection (V)
Fail Safe
ICC (Max) (mA)
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Pin/Package
SN65HVD1791 SN65HVD1780 SN65HVD1781 SN65HVD1782 SN65HVD1785 SN65HVD1786 SN65HVD1787 SN65HVD1792 SN65HVD1793 SN65HVD1794
5    3.3
5   
3.3
5   
3.3
5   
5    5    5    5    5    5   
1    1    1    1    1    1    1    1    1    1   
1    1    1    1    1    1    1    1    1    1   
Full    Half    Half    Half    Half    Half    Half    Full    Full    Half   
No    No    No    No    No    No    No    No    No    No   
0.115    0.115    1    10    0.115    1    10    1    10    0.115   
16    16    16    16    16    16    16    16    16    16   
N/A    N/A    N/A    N/A    N/A    N/A    N/A    N/A    N/A    N/A   
256    320    320    64    256    256    64    256    256    256   
-20 to 25    -7 to 12    -7 to 12    -7 to 12    -20 to 25    -20 to 25    -20 to 25    -20 to 25    -20 to 25    -20 to 25   
-70 to 70    -70 to 70    -70 to 70    -30 to 30    -70 to 70    -70 to 70    -30 to 30    -70 to 70    -30 to 30    -70 to 70   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
6    6    6    6    6    6    6    6    6    6   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 105    -40 to 105    -40 to 105
-40 to 125   
-40 to 105    -40 to 105    -40 to 105    -40 to 105    -40 to 105    -40 to 105    -40 to 105   
SOIC    PDIP
SOIC   
PDIP
SOIC   
PDIP
SOIC   
PDIP
SOIC   
PDIP
SOIC   
PDIP
SOIC   
SOIC    SOIC    PDIP
SOIC   
14SOIC: 52 mm2: 6 x 8.65(SOIC)    See datasheet (PDIP)    See datasheet (PDIP)    See datasheet (PDIP)    See datasheet (PDIP)    See datasheet (PDIP)    See datasheet (PDIP)    14SOIC: 52 mm2: 6 x 8.65(SOIC)    14SOIC: 52 mm2: 6 x 8.65(SOIC)    See datasheet (PDIP)   
14SOIC    8PDIP
8SOIC   
8PDIP
8SOIC   
8PDIP
8SOIC   
8PDIP
8SOIC   
8PDIP
8SOIC   
8PDIP
8SOIC   
14SOIC    14SOIC    8PDIP
8SOIC