±12K ESD Protection, Full Fail-Safe RS-485 Transceiver TP8485E
3PEAK's 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 a SOIC-8 and MSOP-8 package, and is characterized from –40°C to 125°C.
Features
●Exceeds Requirements of EIA-485 Standard
●Hot Plug Circuitry - Tx and Rx Outputs Remain Three-State During Power-up/Power-down
●Data Rate: Up to 250 kbps
●Full Fail-safe (Open, Short, Terminated) Receivers
●Up to 256 Nodes on a Bus (1/8 unit load)
●Wide Supply Voltage 3V to 5.5V
●SOIC-8 Package for Backward Compatibility
●Bus-Pin Protection:
– ±12 kV HBM protection
Applications
●E-Metering Networks
●Industrial Automation
●HVAC Systems
●Process Control
●DMX512-Networks
●Battery-Powered Applications
Pin Configuration (Top View)
Exceptional Tx Drives Up To 256 Loads While Still Delivering 2.5V VOD.
Order Information
- 【Datasheet】TP8485E ±12K ESD Protection, Full Fail-Safe RS-485 Transceiver
- 【Datasheet】TP8485E ±12K ESD Protection, Full Fail-Safe RS-485 Transceiver
- 【Datasheet】TP8485E ±18K ESD Protection, Full Fail-Safe RS-485 Transceiver
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