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

SINGLE HIGH SPEED RS485
ISOLATION TRANSCEIVER MODULE
(AUTOMATIC SWITCHING)
——TD301D485H-A(3.3V Power supply)
TD501D485H-A(5.0V Power supply)
FEATURES
l Baud rate high up to 115200bps
l Connect up to 32 nodes on one bus
l 2500VDC isolation input and output
l Integrated high efficiency isolated DC/DC
converter
l Operating temperature range: -40℃~
+85℃
l ESD protection, perfect EMC recommend
circuit
l Automatic transceiver switching
RoHS
PART NUMBER SYSTEM
TD501D485H-A
Special mark
Speed
Port signal type
Package type
Channel number
Power distribution output
Power input
Digital bus product type
SELECTION GUIDE
Model
TD301D485H-A
TD501D485H-A
GENERAL DESCRIPTION
Single high speed RS485 isolation transceiver module
TD301D485H-A/ TD501D485H-A series are RS485
transceiver module with integrated isolated power,
Signal isolated chip and the bus protection device.
Product's main function is to convert logic level to
difference level of the 485 agreement, and it implements the
function of signal isolation.Products is with isolation power.
It can achieve 2500 VDC electrical isolation and have the
function of ESD protection and automatic switch to send and
receive. It does not need to control through the CON pin,
and reduce the complexity of the design. Product can be
easily embedded user equipment, makes the equipment
easily implement connection of 485 protocol network .
Power Input
3.17V~3.45V
4.75V~5.25V
ELECTRICAL CHARACTERISTICS
Input Parameters Of Power ^{Static current}
Supply
Power dissipation
Input Parameters
Serial interface
Pin current
Output Parameters
485 Bus interface
≤40mA
≤0.2W
Compatible with the UART control port of +5V and +3.3V
ITXD≤2 mA;IRXD≤2 mA
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 115.2Kbps
The Number of Nodes
Connect up to 32 nodes on one bus
Input
Sending Status
TXD
1
Truth Table
0
Input
Receiving Status
A-B
0.2V
-0.2V
Output
A
B
Line state
1
0
Normal
0
1
Normal
Output
RXD
1
0
ISOLATION CHARACTERISTICS
Electrical Isolation
Two-Port isolation(input and output)
Isolation Voltage
2.5KVDC(Tested for 1minute and leakage current < 5mA, humidity <95%)
The copyright and authority for the interpretation of the products are reserved by MORNSUN
TDx01D485H-A 2013.12.04-A/1 Page 1 of 3