TPT481
Features
- Exceeds Requirements of EIA-485 Standard
- Hot Plug Circuitry
- Tx and Rx Outputs Remain Three-
State 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 k V HBM ESD ±15 k V IEC61000-4-2 Contact Discharge ±15 k V IEC61000-4-2 Air Discharge
- - 40°C to 125°C Operation Temperature Range
3.0V to 5.5V RS-485 Transceivers
Description
The TPT481 are IEC61000 ESD protected, 3.0V to 5.5V powered transceivers that meet the RS-485 and RS-422 standards for balanced munication. Transmitters in this family deliver exceptional differential output voltages into the RS-485 required 54Ω load. 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...
