ESM3085E

ESM3085E is a RS-485 transceiver operating from a 4.5V~5.5V wide supply voltage, with bus port ESD protection up to 15kV HBM, bus voltage tolerance of ±15V, half-duplex, low power consumption, and fully compliant with TIA/EIA-485 standard requirements. ESM3085E includes one driver and one receiver, both of which can be independently enabled or disabled. When both are disabled, the driver and receiver outputs enter a high-impedance state. ESM3085E features 1/8 unit load, allowing up to 256 ESM3085E transceivers to be connected in parallel on the same communication bus. Error-free data transmission at up to 500kbps is achievable. ESM3085E operates at 3.3V and provides fail-safe, current limiting protection, and overvoltage protection functions.

Applications

• Bus-type networking
• Daisy-chain networking
• Bus port protection

Key features

• 4.5V~5.5V wide supply range, half-duplex
• Bus port ESD protection up to 15kV HBM
• Bus fault tolerance voltage up to ±15V
• 1/8 unit load, supports up to 256 devices on the bus
• Driver short-circuit output protection
• Receiver open-circuit fail-safe
• Strong noise immunity
• Integrated transient voltage suppression
• Data transfer rate up to 500kbps in electrically noisy environments
• Available in DFN3*3-8, MSOP8/VSSOP8 packages