il3522 NVE Corp., il3522 Datasheet

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il3522

Manufacturer Part Number
il3522
Description
Isolated Rs485/rs422 Interface
Manufacturer
NVE Corp.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
IL3522
Manufacturer:
NVE
Quantity:
20 000
Part Number:
il3522E
Manufacturer:
NVE
Quantity:
20 000
Functional Diagram
DE
RE
D
IsoLoop
*U.S. Patent number 5,831,426; 6,300,617 and others.
R
IL3522 Receiver
RE
NVE Corporation
H
L
L
L
IL3522
®
is a registered trademark of NVE Corporation.
R
H
H
Z
L
X = Irrelevant, Z = High Impedance
≤−200 mV
≥ 200 mV
H = High Level, L = Low Level
11409 Valley View Road, Eden Prairie, MN 55344-3617
V
Open
(A−B)
X
ISODE
Y
Z
A
B
IL3522 Driver
Isolated RS485/RS422 Interface
DE
L
H
H
D
X
H
L
≤−200 mV
≥ 200 mV
V
(Y−Z)
Z
Phone: (952) 829-9217
Features
Applications
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.
3.3 / 5 V Input Supply Compatible
2500 V
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
Security Networks
Building Environmental Controls
Industrial Control Networks
Gaming Systems
Factory Automation
Fax: (952) 829-9189
RMS
Isolation (1 minute)
www.IsoLoop.com
IL3522
©2008 NVE Corporation
REV. F

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il3522 Summary of contents

Page 1

... Description X Z ≥ 200 mV H The IL3522 is a galvanically isolated, high-speed differential bus ≤−200 mV L 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 ...

Page 2

... OL − − Symbol Min. Typ. 8.08 14 > 0.2 N1502812, N1502812-101 Package Pollution Degree SOIC (0.3" Phone: (952) 829-9217 IL3522 Max. Units Test Conditions 150 °C 100 ° 0 Max. Units Test Conditions 5 − ...

Page 3

... IL3522 Pin Connections 1 V Input Power Supply DD1 2 GND Input Power Supply Ground Return Output Data from Bus Read Data Enable high high impedance Drive Enable 6 D Data Input to Bus Internal Connection 8 GND Input Power Supply Ground Return ...

Page 4

... 3.3 V and T = 25° and V , respectively, that occur when the input is changed from one logic state Phone: (952) 829-9217 Fax: (952) 829-9189 IL3522 Max. Units Test Conditions −1.5 = − ...

Page 5

... V DD1 DD2 H 1000 1500 PF H 1800 2000 PM H 1800 2000 OSC K 2 Phone: (952) 829-9217 Fax: (952) 829-9189 IL3522 Max. Units Test Conditions −7 V > V 0.2 V < −7 V > < 25° 200 − ...

Page 6

... Receiver Data Rate, Cables and Terminations The IL3522 is intended for networks up to 4,000 feet (1,200 m), but the maximum data rate decreases as cable length increases. Twisted pair cable should be used in all networks since they tend to pick up noise and other electromagnetically induced voltages as common mode signals, which are effectively rejected by the differential receivers ...

Page 7

... Resistors should GND Nominal V Loading (inactive) 238 254 mV 247 mV 7 Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 IL3522 ; see figure below). These FS-INT will appear between inputs DD Fail-Safe A-B Operation? Yes No Yes Yes Fax (952) 829-9189 Internet: www.isoloop.com ...

Page 8

... Base Part Number 3522 = RS-422 Transceiver Product Family IL = Isolators 8 Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 IL3522 0.287 (7.29) 0.300 (7.62) NOM 0.016 (0.4) 0.050 (1.3) 0.040 (1.0) 0.004 (0.1) 0.060 (1.5) 0.012 (0.3) Valid Part Numbers IL3522 IL3522E IL3522TR13 IL3522E TR13 RoHS COMPLIANT Fax (952) 829-9189 Internet: www.isoloop.com 0.092 (2.34) 0.105 (2.67) ...

Page 9

... ISB-DS-001-IL3522-B • • Initial Release ISB-DS-001-IL3522-A NVE Corporation 11409 Valley View Road Added magnetic field immunity and electromagnetic compatibility specifications. Added note on package drawing that pin-spacing tolerances are non-accumulating. Changed ordering information to reflect that devices are now fully RoHS compliant with no exemptions ...

Page 10

... Corporation product for use in life support devices or systems or other critical applications, without the express written approval of the President of NVE Corporation. Specifications shown are subject to change without notice. ISB-DS-001-IL3522-F March 2008 NVE Corporation 11409 Valley View Road 10 Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 IL3522 Fax (952) 829-9189 Internet: www.isoloop.com ...

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