SN65HVD1793 Datasheet | Texas Instruments

Features - Bus-Pin Fault Protection to: - > ±70 V ('HVD1785, 86, 91, 92) - > ±30 V ('HVD1787, 93) - mon-Mode Voltage Range (- 20 V to 25 V) More Than Doubles TIA/EIA 485 Requirement - Bus I/O Protection - ±16 k V 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 m A Quiescent During Operation - Power-Up, Power-Down Glitch-Free Operation 2 Applications - Designed for RS-485 and RS-422 Networks 3 Description These devices are designed to survive overvoltage faults such as direct shorts to power supplies, miswiring 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 bine 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) munication. In the 'HVD1793, the driver differential outputs and the receiver differential inputs are separate pins, to form a bus port suitable for fullduplex (four-wire bus) munication. These ports feature a wide mon-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). Device Information PART NUMBER PACKAGE(1) BODY SIZE (NOM) SN65HVD1785, SN65HVD1786, SN65HVD1787 SOIC (8) PDIP (8) 4.90 mm × 3.91 mm 9.81 mm × 6.35 mm SN65HVD1791, SN65HVD1792, SN65HVD1793 SOIC (14) 8.65 mm × 3.91 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. VFAULT up to 70 V M0092-01 Example of Bus Short to Power Supply An...