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SP491 IC – (SMD Package) – Full Duplex RS-485 Transceiver IC

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1000 In stock


140.00 (excluding 18% GST)

1000 In stock

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Description

The SP491 is a Full-Duplex RS-485 Transceiver IC designed to provide reliable and high-speed differential data communication in industrial, networking, and automation applications. It is commonly used in systems requiring robust data transmission over long distances and in electrically noisy environments.

Specifications

  • Voltage Supply (Vcc): 4.75V to 5.25V
  • Bus Voltage: -7V to +12V
  • Operating Temperature Range: -40°C to +85°C
  • Data Rate: Up to 10 Mbps (Full-Duplex)
  • Bus Loading: 32 transceivers per bus
  • Driver Output Voltage: ±1.5V differential voltage on the bus
  • Receiver Sensitivity: ±200mV differential input voltage
  • Receiver Input Impedance: 12kΩ (typical)
  • Low Power Consumption: Typically 5mA in idle mode and 70mA when driving
  • Failsafe: Open circuit and short circuit protection

Features

  • Full-Duplex Communication: Supports simultaneous transmission and reception of data on a differential bus, providing more efficient data transfer.
  • RS-485 Standard Compliance: Fully complies with the RS-485 specification, ensuring reliable communication in harsh industrial environments.
  • High-Speed Communication: Capable of transmitting data at speeds up to 10 Mbps, suitable for high-performance applications.
  • Wide Voltage Range: Operates with a supply voltage from 4.75V to 5.25V, making it versatile for various power environments.
  • Enhanced Robustness: Features protection against overvoltage, overcurrent, and ESD, ensuring long-lasting performance in industrial settings.
  • Low Power Consumption: Consumes minimal power when idle, making it ideal for low-energy applications.
  • Thermal Shutdown: Built-in thermal shutdown to protect the device from overheating.
  • Failsafe Receiver: Ensures the receiver provides a valid output (high or low) even in cases of bus faults such as an open circuit or short circuit.
  • High Drive Capability: Capable of driving long communication distances with minimal signal degradation.
  • Driver Tri-state Control: The driver can be disabled to allow the bus to be released or connected to other transceivers, providing flexibility in multi-point systems.

Note

* Product Images are shown for illustrative purposes only and may differ from actual product

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