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TPT4189

5.0V RS-485 Transceivers with polarity control

Overview

The TPT4189 is IEC61000 ESD protected, 5V transceivers that meet the RS-485 and RS-422 standards for Half Duplex communication.

The TPT4189 features a fail-safe receiver, which support the output of the receiver to be logic high when the differential input (bus pin A/B) of the receiver is open, short or idle when RXP=0V.

Transmitters in this family deliver exceptional differential output voltages into the RS-485 required 54Ω load. The 20Mbps 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.

The TPT4189 is available in SOP14 package, and 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)

    20000

  • ICC(Max)(mA)

    2.5

  • ESD HBM(kV)

    18

  • IEC-61000-4-2 Contact(kV)

    12

  • Operating Temperature Range(℃)

    -40 to +125

  • Package

    SOP14

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