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TD31IP485H Datasheet(PDF) 1 Page - MORNSUN Science& Technology Ltd.

No. de pieza TD31IP485H
Descripción Electrónicos  DUAL ISOLATION HIGH SPEED H-485 TRANSCEIVER
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Fabricante Electrónico  MORNSUN [MORNSUN Science& Technology Ltd.]
Página de inicio  http://www.mornsun-power.com
Logo MORNSUN - MORNSUN Science& Technology Ltd.

TD31IP485H Datasheet(HTML) 1 Page - MORNSUN Science& Technology Ltd.

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The copyright and authority for the interpretation of the products are reserved by MORNSUN
TDx1IP485H
2013.03.19-A/0
Page 1 of 3
DUAL ISOLATION HIGH SPEED
H-485 TRANSCEIVER
——TD31IP485H(3.3V Power supply)
TD51IP485H(5.0V Power supply)
PART NUMBER SYSTEM
TD31I P485H
Port signal type
Package type
Channel number
Power distribution output
Power input
Digital bus product type
rate
FEATURES
l Baud rate high up to115200bps
l Connect up to 32 nodes on one bus
l 2500VDC isolation voltage (input and output)
l 2500VDC isolation voltage (output and output)
l Integrated high efficiency isolated DC/DC
converter
l Operating temperature range: -40℃~ +85℃
l ESD protection, perfect EMC recommend
circuit
GENERAL DESCRIPTION
Dual double isolation high speed h-485 isolated transceiver
module
TD31IP485H/TD51IP485H
series
are
transceiver
isolation module with integrated twin power isolation, electrical
isolation,
and RS-485 interface bus protector . It has two way
independent of RS485 network function,and the two-port RS485
networks are isolated.Products can be easily embedded in the
user
equipment,
achieve
function
of
RS-485
network
connection.
The isolation RS - 485 circuits of using a piece of power
isolation module, six road light coupling and 2 RS - 485
transceivers and device is only need to adopt a RS485 isolation
module
now.Simplify
the
customers
on
the
isolation
requirements of the design.
SELECTION GUIDE
Model
Power Input
TD31IP485H
3.17V~3.45V
TD51IP485H
4.75V~5.25V
ELECTRICAL CHARACTERISTICS
Static current
TD31IP485H
≤50mA ,TD51IP485H≤30mA
power dissipation(max)
≤0.4W
Input Of Power Supply
Send current
TD31IP485H
≤121mA ,TD51IP485H≤80mA
Serial interface
Compatible with + 5 V and + 3.3 V UART Interface
Input
Pin current
ITXD<2mA ;IRXD<2mA ;ICON<5mA
Output
485 Bus interface
Standard interface RS485, pull-up and pull-down resistor,
whose value is 4.7KΩ,have been set to A/B line.
TRANSMISSION CHARACTERISTICS
Transmission Rate
115200 bps(max)
Data Delay
The delay time from the receiving data switch to the send data : 30
μs(min), 100 μs(max).
The Number of Nodes
Connect up to 32 nodes on one bus
Transceiver control
Contrary to common 485 transceiver control level
Control
Input
Output
CON
TXD
A
B
Line state
0
1
1
0
Normal
Sending Status
0
0
0
1
Normal
Control
Input
Output
CON
A-B
RXD
1
0.2V
1
Truth Table
Receiving Status
1
-0.2V
0


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