Transcription of LTM2881 - Completed Isolated RS485/RS422 µModule ...
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LTM2881 - Completed Isolated RS485/RS422 µModule ...
LTM2881 . Complete Isolated RS485/RS422 Module Transceiver + Power Features Description nn RS485/RS422 Transceiver: 2500 VRMS for 1 Minute The LTM 2881 is a complete galvanically Isolated full-du- nn UL-CSA Recognized File #E151738 plex RS485/RS422 Module (micromodule) transceiver. nn CSA Component Acceptance Notice 5A No external components are required. A single supply nn Isolated DC Power: 5V at Up to 200mA powers both sides of the interface through an integrated, nn No External Components Required Isolated , low noise, efficient 5V output DC/DC converter. nn 20 Mbps or Low EMI 250kbps Data Rate nn High ESD: 15kV HBM on Transceiver Interface Coupled inductors and an isolation power transformer nn High Common Mode Transient Immunity: 30kV/ s provide 2500 VRMS of isolation between the line transceiver nn Integrated Selectable 120 Termination and the logic interface. This device is ideal for systems nn ( LTM2881 -3) or ( LTM2881 -5) Operation where the ground loop is broken allowing for large com- nn to Logic Supply Pin for Flexible Digital Interface mon mode voltage variation.
n Industrial Networks n Breaking RS485 Ground Loops ... VOC Driver Common Mode Output Voltage R = 27Ω or R = 50Ω (Figure 1) l 3 V ∆ ... for Complementary Output States R = 27Ω or R = 50Ω (Figure 1) l 0.2 V IOZD Driver Three-State (High Impedance) Output Current on Y and Z DE = 0V, (Y or Z) = –7V, +12V DE = 0V, (Y or Z) = –7V, +12V, H ...
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