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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:SOICN
Pkg. Code:MOU
Lead Count (#):8
Pkg. Dimensions (mm):4.9 x 3.9 x 0.00
Pitch (mm):1.3

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
RoHS (ISL31485EIBZ-T7A)Download
ECCN (US)
HTS (US)

Product Attributes

Lead Count (#)8
Carrier TypeReel
Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
Pb Free CategoryPb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C)-40 to +85°C
Cable InvertYes
Common Mode Input Range (V)-25 - 25
Data Rate (Mbps)1
Devices Allowed on Bus128
Fault Voltage Level (±V)60
Half/Full DuplexHalf
High ESD ProtectionNo
Hot PlugYes
Length (mm)4.9
MOQ250
Pitch (mm)1.3
Pkg. Dimensions (mm)4.9 x 3.9 x 0.00
Pkg. TypeSOICN
Primary FeatureOvervoltage Protected RS-485/422
Qualification LevelStandard
Receivers (#)1
SHDN ICCN/A µA
Slew Rate LimitedYes
Supply Current Icc (µA)2.3
Supply Voltage Vcc (Min) (V)4.5
Transmitters (#)1
Tx/Rx EnableTx Only
VL PinNo
Vcc (V)4.5-5.5
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.