IL3522 Datasheet, PDF (1/10 Pages) List of Unclassifed Manufacturers – Isolated RS485/RS422 Interface

IL3522
Isolated RS485/RS422 Interface
Functional Diagram
DE
D
R
RE
IL3522
ISODE
Y
Z
A
B
IL3522 Receiver
RE R
HZ
V_(A−B)
X
L H ≥ 200 mV
L L ≤−200 mV
LH
Open
IL3522 Driver
DE D
LX
V_(Y−Z)
Z
H H ≥ 200 mV
H L ≤−200 mV
H = High Level, L = Low Level
X = Irrelevant, Z = High Impedance
Features
• 3.3 / 5 V Input Supply Compatible
• 2500 V_RMS Isolation (1 minute)
• 20 ns Propagation Delay
• 40 Mbps Data Rate
• 1 ns Pulse Skew
• 20 kV/μs Transient Immunity
• Thermal Shutdown Protection
• −40°C to +85°C Temperature Range
• 16-pin SOIC Package
• UL1577 and IEC 61010-2001 Approval
Applications
• Security Networks
• Building Environmental Controls
• Industrial Control Networks
• Gaming Systems
• Factory Automation
Description
The IL3522 is a galvanically isolated, high-speed differential bus
transceiver, designed for bidirectional data communication on
balanced transmission lines. The device uses NVE’s patented*
IsoLoop spintronic Giant Magnetoresistance (GMR) technology.
The IL3585 delivers an exceptional 2.3 V differential output into a
54 Ω load over the supply range of 4.5 V to 5.5 V. This provides
better data integrity over longer cable lengths, even at data rates as
high as 40 Mbps. The device is also compatible with 3.3 V input
supplies, allowing interface to standard microcontrollers without
additional level shifting.
Current limiting and thermal shutdown features protect against
output short circuits and bus contention that may cause excessive
power dissipation. Receiver inputs feature a “fail-safe if open”
design, ensuring a logic high R-output if A/B are floating.
IsoLoop^® is a registered trademark of NVE Corporation.
*U.S. Patent number 5,831,426; 6,300,617 and others.
Distributed by: Rhopoint Components www.rhopointcomponents.com email: [e-mail]
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