IL485W Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – Isolated RS485 Interface with Handshake

Isolated RS485 Interface with
Handshake
IL485W
Function Table
The IL485W is a
galvanically isolated, high-
VID
speed differential bus
transceiver, designed for
bi-directional
data
(A-B)
≥0.2V
DE RE ISODE R
L
L
L
H
communication
on
balanced transmission
≤-0.2V
L
L
L
L
lines. The IL485W uses
patented
IsoLoop®
-7<VID<12 X
H
X
Z
technology and is the first
isolated RS-485 interface
available in a standard 16
≥ 1.5
H
L
H
H
pin SOIC package, which
meets the ANSI Standards
EIA/TIA-422-B
and
≤-1.5
Open
H
L
H
L
L
L
L
H
RS485.
H = High Level
The IL485W has current limiting and thermal shutdown features to
protect against output short circuits and bus contention situations where
these may cause excessive power dissipation.
L = Low Level
X = Irrelevant
With a 1 nsec pulse skew and 16 nsec propagation delay, the IL485W is
ideal for PROFIBUS applications. Use of DE/ISODE and IN1/OUT1
allows the IL485W to perform the handshaking operations of RTSAS
and DTSAS of PROFIBUS.
Z = High Impedance
• ^{2500 Vrms Isolation (1 min)}
• ^{25 ns Maximum Propagation Delay}
• ^{35 MBaud Data Rate}
• ^{1 ns Pulse Skew (typ.)}
• ^{Designed for Multi-point Transmission on Long Bus}
Lines in Noisy Environments
• ^{±60 mA Driver Output Capability}
• ^{Thermal Shutdown Protection}
• ^{Meets or Exceeds ANSI RS-485 and ISO 8482:1987 (E)}
• ^{-40°C to +85°C Temperature Range}
• ^{16 Pin SOIC Package}
• ^{PROFIBUS International Component Recognition}
• ^{UL1577 Approval (pending)}
• ^{IEC 61010-1 Approval (pending)}
Applications
• ^{PROFIBUS/RS485}
• ^{RS-485 Systems}
• ^{Multiple Data Point Transmission}
PROFIBUS Fault Interrogation
D MODE
X Receive
X Receive
X Receive/
Drive
H Drive
L Drive
X Receive
Dimensions in mm
Functional Diagram (IL485W)
Rhopoint Components Ltd
Tel: [phone] Fax: [phone]
Germany: [phone] Fax: [phone]
Email: [e-mail] Website: www.rhopointcomponents.com