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ISO150AP 数据表(PDF) 8 Page - Texas Instruments

部件名 ISO150AP
功能描述  DUAL, ISOLATED, BIDIRECTIONAL DIGITAL COUPLER
PDF  21 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

ISO150AP 数据表(HTML) 8 Page - Texas Instruments

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APPLICATION INFORMATION
Data In
+5V (1)
+5V (1)
(1)
(1)
(2)
(1)
(1)
(2)
Channel 2
Data Out
Channel 1
Data Out
Channel 2
Data In
Channel 1
(Transmit)
(Transmit)
(Receive)
(Receive)
Channel 2
Channel 1
Side A
Side B
GA
D2A R/T2A
D2B
VSB R/T2B
D1B
GB
R/T1B
VSA
D1A R/T1A
NOTES: (1) Power Supplies and
grounds on side A and side B are
isolated. (2) Recommended bypass:
0.1 m F in parallel with 1nF.
Data
(I/O)
DE/RE
+5V
”1”
(+5V)
RE
D
R
A
B
BUS
+5V
+5V
DE
SN65HVD05
Channel 2
Channel 1
Side A
Side B
G
A
D
2A
R/T
2A
D
2B
V
SB
R/T
2B
D1B
GB
R/T1B
V
SA
D
1A
R/T
1A
ISO150
SBOS032D – SEPTEMBER 2000 – REVISED AUGUST 2008 .......................................................................................................................................... www.ti.com
shown. The transmission direction can be controlled
Figure 14 shows the ISO150 connected for basic
by logic signals applied to the R/T pins. Channel 1
operation; Channel 1 is configured to transmit data
and 2 can be independently controlled for the desired
from side B to A, whereas Channel 2 is set for
transmission direction. See Figure 15 and Figure 16
transmission from side A to B. The R/T pins for each
for application examples using the ISO150.
of the four transceivers are shown connected to the
required logic level for the transmission direction
Figure 14. Basic Operation Diagram
Figure 15. Isolated RS-485 Interface
8
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Copyright © 2000–2008, Texas Instruments Incorporated
Product Folder Link(s): ISO150



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