MAX3440E

PRODUCTION

±15kV ESD-Protected, ±60V Fault-Protected, 10Mbps, Fail-Safe RS-485/J1708 Transceivers

±15kV ESD-Protected, ±60V, Fault-Protected, 10Mbps Fail-Safe RS-485/J1708 Transceivers

Data Sheet (Rev. 3) Product Selection Table
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Overview

  • ±15kV ESD Protection
  • ±60V Fault Protection
  • Guaranteed 10Mbps Data Rate (MAX3441E/MAX3443E)
  • Hot Swappable for Telecom Applications
  • True Fail-Safe Receiver Inputs
  • Enhanced Slew-Rate-Limiting Facilitates Error-Free Data Transmission (MAX3440E/MAX3442E/MAX3444E)
  • Allow Up to 128 Transceivers on the Bus
  • -7V to +12V Common-Mode Input Range
  • Automotive Temperature Range (-40°C to +125°C)
  • Industry-Standard Pinout

The MAX3440E-MAX3444E fault-protected RS-485 and J1708 transceivers feature ±60V protection from signal faults on communication bus lines. Each device contains one differential line driver with three-state output and one differential line receiver with three-state input. The 1/4-unit-load receiver input impedance allows up to 128 transceivers on a single bus. The devices operate from a 5V supply at data rates of up to 10Mbps. True fail-safe inputs guarantee a logic-high receiver output when the receiver inputs are open, shorted, or connected to an idle data line.

Hot-swap circuitry eliminates false transitions on the data bus during circuit initialization or connection to a live backplane. Short-circuit current-limiting and thermal shutdown circuitry protect the driver against excessive power dissipation, and on-chip ±15kV ESD protection eliminates costly external protection devices.

The MAX3440E-MAX3444E are available in 8-pin SO and PDIP packages and are specified over industrial and automotive temperature ranges.

Applications

  • HVAC Controls
  • Industrial Networks
  • RS-422/RS-485 Communications
  • Telecommunication Systems
MAX3440E
±15kV ESD-Protected, ±60V Fault-Protected, 10Mbps, Fail-Safe RS-485/J1708 Transceivers
MAX3440E, MAX3441E: Pin Configurations and Typical Operating Circuits
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 3

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Tools & Simulations

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