The XR33038ID-F is a high performance Half-Duplex RS-485 Transceiver optimized to operate over a wide range of supply voltage, from 2.8 to 5.5V. The analogue bus pins can withstand direct shorts up to ±18V and are protected against ESD events up to ±15kV. In an isolated application it may be more efficient to use a remote power supply rather than generating an isolated supply at every node. The XR33032 transceiver can operate with more than 2V IR drop in the cable when utilizing a remote 5V power supply. The receiver includes full fail-safe circuitry, guaranteeing a logic-high receiver output when the receiver inputs are open, shorted or un-driven. The receiver input impedance is 96kW allowing up to 256 devices on the bus while preserving the full signal margin. The drivers are protected by short circuit detection as well as thermal shutdown and maintain high impedance in shutdown or when powered-off.
- Robust ESD protection
- 300μA Idle current, 40nA shutdown current
- Enhanced receiver failsafe protection for open, shorted or terminated but idle data lines
- Hot-swap glitch protection on DE and RE pins
- Driver short circuit current limit and thermal shutdown for overload protection
- 1/8 Unit-load (up to 256 nodes on the bus)
自动化与过程控制, 通信与网络, HVAC, 工业, 计量
(EN)
