TD301D485H Datasheet, PDF (1/3 Pages) MORNSUN Science& Technology Ltd. – SINGLE HIGH SPEED RS485 ISOLATION TRANSCEIVER MODULE

SINGLE HIGH SPEED RS485
FEATURES
l2-port electrical isolation between input and
ISOLATION TRANSCEIVER MODULE ^output
------TD301D485H(3.3V Power supply)
TD501D485H(5.0V Power supply)
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
lLow electromagnetic radiation
lHigh electromagnetic immunity
PART NUMBER SYSTEM
TD501D485H
Rate
Port signal type
Package type
Channel number
Power distrubution output
Power input
Digital bus interface product type
GENERAL DESCRIPTION
TD301D485H/TD501D485H series are transceiver
isolation module with integrated duplex power isolation,
electrical isolation, and RS-485 interface bus protector ;
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; Products can be
easily embedded in the user equipment, achieve function
of RS-485 network connection.
SELECTION GUIDE
Model
TD301D485H
TD501D485H
Input
3.17V~3.45V
4.75V~5.25V
ELECTRICAL CHARACTERISTICS
Power Input
Input Current(no Load)
Send current
Input
Serial interface
Pin current
Output
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,A 4.7KΩ pullup to Vcc, B 4.7KΩ pulldown to
GND
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 TDx01D485H
2013.12.04-A/2
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