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Fault Protected, Extended CMR, RS-485/RS-422 Transceivers with Cable Invert

Package Information

CAD Model: View CAD Model
Pkg. Type: SOIC
Pkg. Code: MOU
Lead Count (#): 8
Pkg. Dimensions (mm): 4.9 x 3.9 x 1.5
Pitch (mm): 1.27

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
RoHS (ISL31485EIBZ-T) Download
ECCN (US)
HTS (US)

Product Attributes

Lead Count (#) 8
Carrier Type Reel
Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C) -40 to +85°C
Cable Invert Yes
Common Mode Input Range (V) -25 - 25
Data Rate (Mbps) 1
Devices Allowed on Bus 128
Fault Voltage Level (±V) 60
Half/Full Duplex Half
High ESD Protection No
Hot Plug Yes
Length (mm) 4.9
MOQ 2500
Pitch (mm) 1.3
Pkg. Dimensions (mm) 4.9 x 3.9 x 0.00
Pkg. Type SOICN
Primary Feature Overvoltage Protected RS-485/422
Qualification Level Standard
Receivers (#) 1
SHDN ICC N/A µA
Slew Rate Limited Yes
Supply Current Icc (µA) 2.3
Supply Voltage Vcc (Min) (V) 4.5
Supply Voltage Vcc Range 4.5-5.5
Transmitters (#) 1
Tx/Rx Enable Tx Only
VL Pin No
Width (mm) 3.9

Description

The ISL31483E and ISL31485E are fault protected, 5V powered differential transceivers that exceed the RS-485 and RS-422 standards for balanced communication. The RS-485 transceiver pins (driver outputs and receiver inputs) are fault protected up to ±60V. Additionally, the extended common mode range allows these transceivers to operate in environments with common mode voltages up to ±25V (>2x the RS-485 requirement), making this fault protected RS-485 family one of the most robust on the market. Transmitters deliver an exceptional 2. 5V (typical) differential output voltage into the RS-485 specified 54Ω load. This yields better noise immunity than standard RS-485 ICs, or allows up to six 120Ω terminations in star network topologies. Receiver (Rx) inputs feature a “Full Fail-Safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or on a terminated but undriven (idle) bus. The ISL31483E and ISL31485E include cable invert functions that reverse the polarity of the Rx and/or Tx bus pins in case the cable is misconnected. Unlike competing devices, Rx full fail-safe operation is maintained even when the Rx input polarity is switched.