IL485-3V Datasheet, PDF (1/8 Pages) List of Unclassifed Manufacturers – Isolated RS485-3V Interface

IL485-3V^ISOLOOP®
Isolated RS485-3V Interface
Functional Diagram
Function Table
V_ID
(A-B)
DE RE ISODE R
D
MODE
≥ 0.2V
LL
L
H X Receive
≤ −0.2V
LL
L
L X Receive
-7<V_ID<12
X
H
X
≥ 1.5
HL
H
Z X Receive/Drive
HH
Drive
≤−1.5
HL
H
LL
Drive
Open
LL
L
H X Receive
H= High Level, L= Low Level,
X= Irrelevant, Z= High Impedance
Ordering Information
Order as IL485-3V. If requesting tape and reel,
please specify as IL485-3VTR.
Isoloop^® is a registered trademark of NVE Corporation
* US Patent number 5,831,426; 6,300,617 and others
Features
······
3.3 V Input Supply Compatible
2500 V_RMS 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
-40°C to +85°C Temperature Range
PROFIBUS International Component Recognition
16 Pin SOIC Package
UL1577 Approval Pending
IEC 61010-1 Approval Pending
(E)
Applications
···
PROFIBUS/RS485
RS-485 Systems
Multiple Data Point
Transmission
Description
The IL485-3V is a galvanically isolated, high speed differential
bus transceiver, designed for bidirectional data communication
on balanced transmission lines. Isolation is achieved through
patented* Isoloop^® technology. The IL485-3V is the first isolated
RS-485 interface available in a standard 16 pin SOIC package,
which meets the ANSI Standards EIA/TIA-422-B and RS485
and is compatible with 3.3V input supplies.
The IL485-3V has current limiting and thermal shutdown
features to protect against output short circuits and bus
contention situations where these may cause excessive power
dissipation.
With 1 nsec pulse skew and 16 nsec propagation delay, the IL485
is ideal for PROFIBUS applications.
NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: [phone] Fax: [phone] Internet: www.isoloop.com