TD311D485H Datasheet, PDF (1/3 Pages) MORNSUN Science& Technology Ltd. – SINGLE HIGH SPEED RS485 ISOLATION TRANSCEIVER MODULE

SINGLE HIGH SPEED RS485
ISOLATION TRANSCEIVER MODULE
(WITH DISTRIBUTION)
——TD311D485H(3.3V Power supply)
TD511D485H(5.0V Power supply)
FEATURES
l2-port electrical isolation input and output
lIntegrated isolated DC/DC converter
lBus protection
lIsolation voltage 2.5KVDC
lOperating temperature range:-40℃ ~
+85℃
lHigh speed data rate：115200bps
lConnect up to 32 nodes on one bus
lIsolation power output +5V
lLow electromagnetic radiation
lHigh electromagnetic immunity
PART NUMBER SYSTEM
TD311D485H
rate
Port signal type
Package type
Channel number
Power distribution output
Power input
Digital bus product type
SELECTION GUIDE
Model Number
TD311D485H
TD511D485H
Power Input
3.17V~3.45V
4.75V~5.25V
GENERAL DESCRIPTION
TD311D485H/TD511D485H series are transceiver
isolation module with integrated duplex power isolation,
electrical isolation, and RS-485 interface bus protector ;
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, three light couplings and RS-485
transceivers and device are only need to adopt a RS485
isolation module now. Simplify the customers on the
isolation requirements of the design.
ELECTRICAL CHARACTERISTICS
Power Input Parameters
Input Current(no Load)
Send current
Input Parameters
Serial interface
Pin current
Output Parameters
485 Bus interface
≤35mA
≤70mA
Compatible with + 5 V and + 3.3 V UART Interface
I_TXD<2mA ；I_RXD<2mA ；I_CON<5mA
Standard interface RS485 No pull-up and pull-down resistor on 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
Transceiver control
Connect up to 32 nodes on one bus
Contrary to common 485 transceiver control level
Control
Input
Output
Sending Status
CON
0
TXD
1
A
B
1
0
Truth Table
0
Control
0
Input
0
1
Output
Receiving Status
CON
1
A-B
0.2V
RXD
1
1
-0.2V
0
Line state
Normal
Normal
The copyright and authority for the interpretation of the products are reserved by MORNSUN TDx11D485H
2013.12.04-A/1
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