LTM2885HY#PBF

LTM2885HY#PBF is a complete galvanically isolated full-duplex RS485/RS422 µModule® transceiver. No external components are required. A single supply powers both sides of the interface through an integrated, isolated, low-noise, efficient 5V output DC/DC converter. Coupled inductors and an isolation power transformer provide 6500VRMS of isolation between the line transceiver and the logic interface. This device is ideal for systems where the ground loop is broken allowing for large common mode voltage variation. Uninterrupted communication is guaranteed for common mode transients up to 50kV/μs. Transmit data, DI, and receive data, RO, are implemented with event-driven low-jitter processing. The receiver has a one-eighth unit load supporting up to 256 nodes per bus. Applications include isolated RS485/RS422 interface, industrial networks, breaking RS485 ground loops, isolated PROFIBUS-DP networks.

• RS485/RS422 transceiver: 6500VRMS for 1 minute, CSA (IEC/UL) approved, file #255632
• Isolated DC power: 5V at 200mA, high common mode transient immunity: 50kV/μs
• High ESD: ±15kV HBM on transceiver interface
• Integrated selectable 120 ohm termination, extended creepage and clearance ~14.6mm
• 1.62V to 5.5V logic supply pin for flexible digital interface
• Maximum continuous working voltage: 690VRM
• High input impedance Failsafe RS485 receiver, current limited drivers and thermal shutdown
• Compatible with TIA/EIA-485-A and PROFIBUS
• High impedance output during internal fault condition
• 42-lead BGA package, operating temperature range from -40°C to 105°C

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