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.
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Status
Production
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Rating
Industrial
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Drivers Per Package
1
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Receivers Per Package
1
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VCC (Min)(V)
3
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VCC(Max)(V)
5.5
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Data Rate (Max)(kBPS)
20000
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ICC(Max)(mA)
2.5
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ESD HBM(kV)
18
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IEC-61000-4-2 Contact(kV)
12
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Operating Temperature Range(℃)
-40 to +125
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Package
SOP14
