SN65HVD1781DR

The SN65HVD178x 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. The devices are also robust to ESD events with high levels of protection to the human- body- model specification. The SN65HVD178x devices combine a differential driver and a differential receiver, which operate from a single power supply. In the SN65HVD1782, 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 devices suitable for multipoint applications over long cable runs. These devices are characterized from - 40℃ to 125℃. These devices are pin- compatible with the industry- standard SN75176 transceiver, making them drop- in upgrades in most systems. These devices are 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.

Applications

• HVAC Networks
• Security Electronics
• Building Automation
• Telecommunication Equipment
• Motion Control
• Industrial Networks

Key features

• Bus- Pin Fault Protection to: > ±70 V (SN65HVD1780, SN65HVD1781); > ±30 V (SN65HVD1782)
• 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 Current During Operation
• Pin- Compatible With Industry- Standard SN75176
• Signaling Rates of 115 kbps, 1 Mbps, and up to 10 Mbps
• Create a Custom Design using the SN65HVD178x with the WEBENCH Power Designer