Overview

The ISL32743E is a galvanically isolated high-speed differential bus transceiver, designed for bidirectional data communication on balanced transmission lines. The device uses Giant Magnetoresistance (GMR) as its isolation technology. The part is available in a 16 Ld SOICW package providing a true 8mm creepage distance. A unique ceramic/polymer composite barrier provides excellent isolation and 44, 000 years of barrier life. The device is compatible with 3V and 5V input supplies, allowing an interface to standard microcontrollers without additional level shifting. Current limiting and thermal shutdown features protect against output short circuits and bus contention that may cause excessive power dissipation. Receiver inputs are a full fail-safe design, ensuring a logic high R-output if A/B are floating or shorted.

ISL32743E Functional Diagram
ISL32743E Functional Diagram
  • 40Mbps data rate
  • 2.5kVRMS isolation/600VRMS working voltage
  • 3.3V bus
  • 20ns propagation delay
  • 5ns pulse skew
  • 1/5 unit load allows up to 160 devices on the bus
  • 50kV/μs (typical), 30kV/μs (minimum) common-mode transient immunity
  • 16.5kV ESD protection
  • Low EMC footprint
  • Thermal shutdown protection
  • Temperature range: -40°C to +85°C
  • Meets or exceeds ANSI RS-485 and ISO 8482:1987(E)
  • True 8mm 16 Ld SOICW packages
  • UL 1577 recognized
  • VDE V 0884-11 pending

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    MOQ
    Buy / Sample
    Part Number
    ISL32743EIBZ
    circleObsolete
    memory
    view_in_ar
    		SOICW Tube 920
    ISL32743EIBZ-T
    circleObsolete
    memory
    view_in_ar
    		SOICW Reel 1000
    ISL32743EIBZ-T7A
    circleObsolete
    memory
    view_in_ar
    		SOICW Reel 250
    Parametric Table tips

    Tips for Using This Parametric Table:

    • Hide Filters button in header: Collapse or expands filters
    • Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
    • Reset button in header: Reset all filters to the page default
    • Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
    • Export button in header: Export the filtered results of the table to an Excel document
    • Filter parts search bar in header: Type to filter table results by part number
    • Hide column button in column headers: Select to hide columns in table
    • AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
    • Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
    • Document icon next to product name in row: View the featured document for this product
    • Chip icon next to the right of the document icon in row: View the block diagram for this product
    • Cart icon to the right of the chip icon: Indicates that samples are available for this product