SN65HVD1781A-Q1 Automotive, Fault-Protected RS-485 Transceivers With 3.3-V to 5-V Operation | TI.com

SN65HVD1781A-Q1 (ACTIVE)

Automotive, Fault-Protected RS-485 Transceivers With 3.3-V to 5-V Operation

Automotive, Fault-Protected RS-485 Transceivers With 3.3-V to 5-V Operation - SN65HVD1781A-Q1
 

Description

The device is designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. It is also robust to ESD events, with high levels of protection to the human-body-model specification.

The SN65HVD1781A-Q1 combines a differential driver and a differential receiver, which operate from a single power supply. 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. This port features a wide common-mode voltage range, making the device suitable for multipoint applications over long cable runs. The device is characterized from –40°C to 125°C. The SN65HVD1781A-Q1 device is pin-compatible with the industry-standard SN75176 transceiver, making it a drop-in upgrade in most systems.

The device is fully compliant with ANSI TIA/EIA 485-A with a 5-V supply and can operate with a 3.3-V supply with reduced driver output voltage for low-power applications. For applications where operation is required over an extended common-mode voltage range, see the SN65HVD1785 (SLLS872) data sheet.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • Device Temperature Grade 1:
      –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESG Classification Level C3B
  • Bus-Pin Fault Protection to: > ±70 V
  • Operation With 3.3-V to 5-V Supply Range
  • ±16-kV HBM Protection on Bus Pins
  • Reduced Unit Load for up to 320 Nodes
  • Failsafe Receiver for Open-Circuit, Short-Circuit and Idle-Bus Conditions
  • Low Power Consumption
    • Low Standby Supply Current, 1 µA Maximum
    • ICC 4-mA Quiescent During Operation
  • Pin-Compatible With Industry-Standard SN75176
  • Signaling Rates up to 1 Mbps

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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
Signaling Rate (Max) (Mbps)
IEC 61000-4-2 Contact (+/- kV)
HBM ESD (kV)
Fault Protection (V)
Number of Nodes
Common Mode Range
ICC (Max) (mA)
Isolated
Rating
Operating Temperature Range (C)
Package Group
Approx. Price (US$)
SN65HVD1781A-Q1 SN65HVD1780-Q1 SN65HVD1781-Q1 SN65HVD1782-Q1
3.3
5    
3.3
5    
3.3
5    
3.3
5    
1     1     1     1    
1     1     1     1    
Half     Half     Half     Half    
  0.115     1     10    
N/A     N/A     N/A     N/A    
16     16     16     16    
-70 to 70     -70 to 70     -70 to 70     -30 to 30    
320     320     320     64    
-7 to 12     -7 to 12     -7 to 12     -7 to 12    
6     6     6     6    
No     No     No     No    
Automotive     Automotive     Automotive     Automotive    
-40 to 125     -40 to 125     -40 to 125     -40 to 125    
SOIC     SOIC     SOIC     SOIC    
2.37 | 1ku     2.35 | 1ku     2.35 | 1ku     2.07 | 1ku