Tudi MAX489ECPD-TUDI

MAX489E is a low-power RS-485 and RS-422 transceiver designed for harsh environments. Driver outputs and receiver inputs feature ±15kV ESD protection with no latch-up. The device contains one driver and one receiver. The 489E incorporates a slew-rate-limited driver to minimize EMI and reduce signal reflections caused by improperly terminated cables, enabling error-free data transmission at up to 250kbps. With the driver disabled and the line fully loaded, these transceivers consume only 120μA supply current. All devices operate from a single 5V supply. Short-circuit current is limited, and a thermal shutdown circuit provides protection by forcing the outputs into a high-impedance state to prevent excessive power dissipation. The receiver features a fail-safe function that guarantees a logic-high output under open-circuit conditions. The MAX489E is designed for full-duplex communication.

• 4.5V~5.5V supply voltage, RS485/RS422 full-duplex communication
• Fail-safe functionality
• 1/8 unit load, supports up to 256 devices on the bus
• Driver short-circuit output protection
• Receiver open-circuit fail-safe protection
• Excellent noise immunity
• Integrated transient voltage suppression
• Data rate up to 250kbps in electrically noisy environments
• A, B port protection: HBM ±15kV

• Low-power RS-485/RS-422 transceiver
• Level translator
• Transceiver for EMI-sensitive applications
• Industrial control LAN