Product Summary

The SN65HVD1781DR is a 70-V Fault-Protected RS-485 Transceiver. The SN65HVD1781DR is designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. The SN65HVD1781DR is also robust to ESD events, with high levels of protection to human-body model specifications. The SN65HVD1781DR combines a differential driver and a differential receiver, which operate from a single power supply. The applications of the SN65HVD1781DR include Designed for RS-485 and RS-422 Networks.

Parametrics

SN65HVD1781DR absolute maximum ratings: (1)VCC, Supply voltage: –0.5 to 7 V; (2)Voltage range at bus pins: –70 to 70 V; (3)Input voltage range at any logic pin: –0.3 to VCC + 0.3 V; (4)Transient overvoltage pulse through 100Ω per TIA-485:–100 to 100 V; (5)Receiver output current: –24 to 24 mA; (6)Junction temperature: 170 ℃; (7)Continuous total power dissipation: See Dissipation Rating Table.

Features

SN65HVD1781DR features: (1)Bus-Pin Fault Protection to: ＞±70 V; (2)Common-Mode Voltage Range (–20 V to 25 V); (3)Bus I/O Protection; (4)Reduced Unit Load for Up to 256 Nodes; (5)Failsafe Receiver for Open-Circuit, Short-Circuit and Idle-Bus Conditions; (6)Low Power Consumption; (7)Power-Up, Power-Down Glitch-Free Operation.

Diagrams

SN65HVD1781DR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
SN65HVD1781DR
SN65HVD1781DR
Texas Instruments
RS-485 Interface IC 70V Fault-Protected RS-485 Xceivers
Data Sheet
0-1: $3.20
1-25: $2.57
25-100: $2.34
100-250: $2.05
SN65HVD1781DRG4
SN65HVD1781DRG4
Texas Instruments
RS-485 Interface IC 70V Fault-Protected RS-485 Xceiver
Data Sheet
0-1850: $1.50
1850-2000: $1.45
2000-2500: $1.45
2500-5000: $1.39