Overview
The TPT485E is 4.5V~5.5V powered transceivers that meet the RS-485 and RS-422 standards for balanced communication. Driver outputs and receiver inputs are protected against ±18 kV ESD strikes without latch-up.
Transmitters in this family deliver exceptional differential output voltages as 2.5V (min) in 5Vcc power supplier, into the RS-485 required 54Ω load, for better noise immunity. 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. The TPT485E is available in an SOP8 package, and is 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)
4.5
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VCC(Max)(V)
5.5
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Data Rate (Max)(kBPS)
500
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ICC(Max)(mA)
0.8
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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
SOP8
