SN65HVD1786DR

These devices are protected against damage from overvoltage faults such as direct power supply short circuits, miswiring faults, connector failures, cable crushing, and tool misuse. They also feature advanced Human Body Model (HBM) ESD protection specifications, maintaining stability during ESD events. These devices integrate a differential driver and a differential receiver, both powered by a single supply. In the 'HVD1785, 'HVD1786, and 'HVD1787, the driver differential output and receiver differential input are internally connected to form a bus port suitable for half-duplex (2-wire bus) communication. In the 'HVD1793, the driver differential output and receiver differential input are separate pins, forming a bus port suitable for full-duplex (4-wire bus) communication. All ports feature a wide common-mode voltage range, making these devices suitable for multipoint applications over long cable runs. These devices are rated for an operating temperature range of -40℃ to 105℃.

Applications

• Designed for RS-485 and RS-422 networks

Key features

• Bus pin fault protection:
• >±70V ('HVD1785, 86, 91, 92)
• >±30V ('HVD1787, 93)
• Common-mode voltage range (-20V to 25V), exceeding TIA/EIA-485 requirements by more than 2×
• Bus I/O protection: ±16kV JEDEC HBM protection
• Reduced unit load supporting up to 256 nodes
• Fail-safe receiver for open, short-circuit, and idle bus conditions
• Low power consumption:
• Low standby supply current: 1μA (typical)
• ICC quiescent current of 5mA during operation
• Glitch-free operation during power-up and power-down