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TP8485E

±12K ESD Protection, Full Fail-Safe RS-485 Transceiver

Overview

The TP8485E are 3V~5.5V powered transceivers that meet the RS-485 and RS-422 standards for balanced communication. Driver outputs and receiver inputs are protected against ±12kV ESD strikes without latch-up.

Transmitters in this family deliver exceptional differential output voltages (2.5V min/5Vcc), into the RS-485 required 54Ω load, for better noise immunity, or to allow up to eight 120Ω terminations in “star” topologies. These devices have very low bus currents so they present a true “1/8 unit load” to the RS-485 bus. This allows up to 256 transceivers on the network without using repeaters. Receiver (Rx) inputs feature a “Full Fail-Safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or on a terminated but undriven bus. Rx outputs feature high drive levels - typically 25mA @ VOL = 1V (to ease the design of optocoupled isolated interfaces).

The TP8485E is available in an SOIC-8 and MSOP-8 package, and is characterized from –40°C to 125°C.


  • Status

    Production

  • Rating

    Industrial

  • Drivers Per Package

    1

  • Receivers Per Package

    1

  • VCC (Min)(V)

    3

  • VCC(Max)(V)

    5.5

  • Data Rate (Max)(kBPS)

    250

  • ICC(Max)(mA)

    0.93

  • ESD HBM(kV)

    18

  • IEC-61000-4-2 Contact(kV)

    Yes

  • Operating Temperature Range(℃)

    -40 to +125

  • Package

    SOP8,MSOP8

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