TPT481 RS-485 Transceivers IC|3peak

The TPT481 are IEC61000 ESD protected,3.0V to 5.5V powered transceivers that meet the RS-485 and RS-422 standards for balanced communication.Transmitters in this family deliver exceptional differential output voltages into the RS-485 required 54Ωload.These 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.TPT481 is designed for half-duplex RS485,and support SOP8，MSOP8 and DFN3X3-8L package,which is characterized from–40°C to 125°C.

　　Features

　　-Exceeds Requirements of EIA-485 Standard

　　-Hot Plug Circuitry-Tx and Rx Outputs Remain ThreeState During Power-up/Power-down

　　-Data Rate:20 Mbps

　　-Up to 256 Nodes on a Bus(1/8 unit load)at 20Mbps

　　-Full Fail-safe Receiver(Open,Short,Terminated)

　　-Wide Supply Voltage 3V to 5.5V

　　-Bus-Pin Protection:

　　±18 kV HBM ESD

　　±15 kV IEC61000-4-2 Contact Discharge

　　±15 kV IEC61000-4-2 Air Discharge

　　-–40°C to 125°C Operation Temperature Range

　　Applications

　　-Motor Drives

　　-Industrial Control

　　-Communication Infrastructure