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TD312P485H Datasheet(PDF) 1 Page - MORNSUN Science& Technology Ltd.

Part # TD312P485H
Description  DUAL HIGH SPEED H-485 ISOLATION TRANSCEIVER
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Manufacturer  MORNSUN [MORNSUN Science& Technology Ltd.]
Direct Link  http://www.mornsun-power.com
Logo MORNSUN - MORNSUN Science& Technology Ltd.

TD312P485H 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
TDx12P485H
2013.03.19-A/0
Page 1 of 3
DUAL HIGH SPEED H-485
ISOLATION TRANSCEIVER
——TD312P485H(3.3V Power supply)
TD512P485H(5.0V Power supply)
PART NUMBER SYSTEM
T 312 P485H
D
Po rt s ig na l type
Pa cka ge ty pe
Ch an ne l n um b er
Po we r d is tribu tio n ou tp ut
Po we r inp ut
Digital b us p rodu ct 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 Integrated high efficiency isolated DC/DC
converter
l Operating temperature range: -40℃~ +85℃
l ESD protection, perfect EMC recommend
circuit
GENERAL DESCRIPTION
RS485
interface
power
Integrated
isolated
module
TD312P485H/TD512P485H series are transceiver isolation
module with
integrated power isolation, electrical isolation,
and
RS-485
interface
bus
protector.
It
has
two
way
independent of RS485 network function.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
TD312P485H
3.17V~3.45V
TD512P485H
4.75V~5.25V
ELECTRICAL CHARACTERISTICS
Static current
TD312P485H
≤50mA ,TD512P485H≤30mA
power dissipation
≤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
Maximum 115200 bps
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
ISOLATION CHARACTERISTICS
Electrical Isolation
Two-port isolation(input and output)
Isolation Voltage
2.5KVDC(Tested for 1minute and leakage current < 5mA, humidity <95%)


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