Description
THVD1406DR RS-485 Transceiver with Auto-Direction Control, a robust half-duplex transceiver from Texas Instruments designed for industrial communication .
Technical Specifications
Product Features
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Automatic Direction Control: This key feature uses the data input pin to control the driver/receiver direction automatically, reducing the need for an external GPIO pin or an additional isolation channel .
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Wide Supply Voltage Range: Supports both 3.3V and 5V systems, offering flexibility for various designs .
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High ESD Protection: Robust bus I/O protection (±12kV IEC 61000-4-2 contact discharge) helps withstand harsh industrial environments, potentially reducing the need for external protection components .
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Fail-Safe Receiver: Ensures a logic-high output for open, shorted, or idle bus conditions .
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Glitch-Free Power-Up: Supports hot-plug capability with a glitch-free power-up and power-down sequence .
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Low Power Consumption: Features a low active current of 1.7mA and a very low standby current of 3µA (typical) .
Design Notes
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Applications: Ideal for factory automation, building automation, HVAC systems, video surveillance, and smart meters .
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Half-Duplex Operation: As a half-duplex device, it can either transmit or receive data on the same bus pair, but not simultaneously .
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Replaces Multiple Components: The automatic direction control and high ESD protection can simplify designs and reduce component count
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