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CA-IS2092A

Ordering Code CA-IS2092A Category

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Low EMI Isolated RS-485/RS-422Transceiver with integrated isolating power

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CA-IS2092A

Order Code CA-IS2092A Category

Description

CA-IS2092A

Ultra-small Isolated RS 485/422 Transceivers with DC-DC Converter

The CA-IS2092A family of devices is galvanically-isolated RS-485 transceivers with built-in isolated DC-DC converter, that eliminates the need for a separate isolated power supply in space constrained isolated designs. The transceivers have the logic input and output buffers separated by a silicon oxide (SiO2) insulation barrier that provides up to 2.5kVRMS (60s) of galvanic isolation and ±150kV/μs typical CMTI Isolation improves data communication by breaking ground loops and reduces noise where there are large differences in ground potential between ports. An integrated DC-DC converter generates the 3.3V or 5V operating voltage for the cable-side.

The CA-IS2092A is designed for multi-drop operation with high ESD protection of up to ±8kV Human Body Model (HBM) on the bus pins. The receiver is 1/8-standard-unit load, allowing up to 256 transceivers (loads) on a common bus. The CA-IS2092A provides half-duplex transceivers.This device provides slow slew rate to minimize EMI and reflections, allowing for error-free data transmission up to 0.5Mbps. The individual logic supply input allows fully compatible 2.5V to 5.5V logic on logic input lines.

The CA-IS2092A device is available in LGA16 package and operates over -40°C to +125°C temperature range.

Features

  • High-Performance and Compliant with RS-485 EIA/TIA-485 Standard
    • Data rate is up to 0.5Mbps
    • 1/8 unit load enables up to 256 nodes on the bus
    • 3.0V to 5.5V DC-DC supply voltage range(VDDP)
    • 2.5V to 5.5V RS-485 supply input(VDDL)
  • Integrated DC-DC Converter for Cable-side Power
    • 3.3V and 5V output options
    • High integration with internal transformer
    • Soft-start reduces input inrush current
    • Overload and short-circuit protection
    • Thermal shutdown
  • Robust Galvanic Isolation of Digital Signals
    • 2.5kVRMS withstand isolation voltage for 60s (galvanic isolation)
    • ±150kV/μs typical CMTI
    • High lifetime: >40 years
  • Integrated Protection for Robust Communication
    • ±8kV Human Body Model(HBM) ESD protection on bus I/O
    • True fail-safe guarantees known receiver output state
    • Driver current limit and thermal shutdown
  • Wide operating temperature range – –40°C to 125°C
  • LGA16 Package

Applications

  • Industrial Automation Equipment
  • Solar inverter
  • Motor drivers
  • Building automation