參數(shù)資料
型號(hào)： IL3185E
廠商： NVE Corp/Isolation Products
文件頁(yè)數(shù)： 1/18頁(yè)
文件大?。?/td> 0K
描述： TXRX ISO BUS 5MBPS RS485 16SOIC
產(chǎn)品培訓(xùn)模塊： IsoLoop® Isolator
產(chǎn)品目錄繪圖： IL3(1,2,4)85 Circuit
特色產(chǎn)品： Wide-Body SOIC-16 Isolators
標(biāo)準(zhǔn)包裝： 50
系列： IsoLoop®
類型： 收發(fā)器，隔離式
驅(qū)動(dòng)器/接收器數(shù)： 1/1
規(guī)程： RS485
電源電壓： 3 V ~ 5.5 V，4.5 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 16-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 16-SOIC
包裝： 管件
產(chǎn)品目錄頁(yè)面： 2771 (CN2011-ZH PDF)
其它名稱： 390-1095-5
IL3185/IL3122
IsoLoop is a registered trademark of NVE Corporation.
*U.S. Patent numbers 5,831,426; 6,300,617 and others.
REV. P
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
Phone: (952) 829-9217
www.isoloop.com
iso-info@nve.com
NVE Corporation
Low Cost Passive Input RS-485 and RS-422 Isolated Transceivers
Functional Diagrams
R
RE
A
B
Z
R
RE
Y
IL3122
IL3185
A
B
V
COIL2
V
COIL1
V
COIL1
V
COIL2
DE
D
DE
D
IL3185 Truth Table
V(A-B)
DE
D
R
RE
Mode
≥ 200 mV
H
L
Drive
≤200 mV
H
L
Drive
≥ 200 mV
L
X
H
L
Receive
≤200 mV
L
X
L
Receive
X
Z
H
X
Open
L
X
H
L
Receive
Z = High Impedance
X = Irrelevant
IL3122 Receiver
RE
R
V(A-B)
H
Z
X
L
H
≥ 200 mV
L
≤200 mV
L
H
Open
IL3122 Driver
DE
D
V(Y-Z)
L
X
Z
H
≥ 200 mV
H
L
≤200 mV
Features
5 Mbps data rate
3 V to 5 V power supplies
Supports up to 32 nodes
15 kV bus ESD protection
2500 VRMS isolation per UL 1577
20 kV/s typical common mode rejection
No carrier or clock for low EMI emissions and susceptibility
40°C to +85°C temperature range
Thermal shutdown protection
UL 1577 recognized; IEC 60747-5-5 (VDE 0884) certified
0.15", 0.3" or True 8 mm 16-pin SOIC packages
Applications
P.O.S. systems
Security networks
Building environmental controls
Industrial control networks
Gaming systems
Factory automation
Description
The IL3185 and IL3122 are galvanically isolated, differential
bus transceivers designed for bidirectional data
communication over balanced transmission lines. The
devices use NVE’s patented* IsoLoop spintronic Giant
Magnetoresistance (GMR) technology. The IL3185 delivers
at least 1.5 V into a 54 load, and the IL3122 at least 2 V
into a 100 load for excellent data integrity over long
cables. These devices are also compatible with 3 V input
supplies, allowing interface to standard microcontrollers
without additional level shifting.
Both the IL3185 and IL3122 have current limiting and
thermal shutdown features to protect against output short
circuits and bus contentions that may cause excessive power
dissipation. The receivers also incorporate a “fail-safe if
open” design, ensuring a logic high on R if the bus lines are
disconnected or “floating.”
Selection Table
Model
Full/Half
Duplex
No. of Devices
Allowed on Bus
Data
Rate
Mbps
Fail-Safe
IL3185
half
32
5
yes
IL3122
full
32
5
yes
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