TD321S485H-A Mornsun 3.3V Input Single High-Speed RS485 Isolated Transceiver Module with Automatic Switching – SMD Package
The main function of the TD321S485H-A / TD521S485H-A series is to convert a logic level signal into isolated RS485 differential level signals. Thespecial integrated IC technology of the RS485 transceiver achieves isolation between the power supply and the signal lines isolation, doesRS485 communication and protects the bus all in one and the same module. The product’s isolated power supply withstands atest voltageof up to 3000VDC. In addition, the product features an automatic switching function, that no longer requires the need to pass throughthenode to send and receive control signals, which to a certain extent, reduces the design complexity. The Products are usingpick andplaceSMD technology, thus enabling the use of fully automated processing. Also, they can easily be embedded in the user’s endequipment, toachieve fully functional RS485 network connections.
Features:Â
- Small size, SMD package
- Integrated highly efficient isolated DC-DCconverter
- Automatic send and receive data function
- High baud rate of up to 500kbps
- Two-port isolation test voltage (3kVDC)
- Operating ambient temperature range: -40℃to+85℃
- The bus supports maximum128 nodes
- Set isolation and ESD bus protection inone
Features/Specs:
- Part Number: TD321S485H-A
- Supplier: Mornsun
- Input Voltage Range:3.15-3.45V
- Nominal Voltage:3.5VDC
- Mark:321SRHA
- Baud rate:500K (bps)
- Static Current:37mA
- Max Operating Current:90mA
- Isolated Power o/p(typ):5VDC
- Isolation: 3000VDC
- Number of Nodes:128
- Package: SMD
Application Precautions:
- Carefully read and follow the instructions before use; contact our technical support if you have any question
- Do not use the product in hazardous areas
- Use only DC power supply source for this product. and AC power supply is prohibited
- It is strictly forbidden to disassemble the product privately in order to avoid product failure or malfunction
- Hot-swap is not supported
- If the external input of TXD is insufficient, the pull-up resistor should be added according to the situation
- The various components of the product may have inconsistent screens due to different production batches, it does not affecttheproduct performance.
Datasheet: TD5(3)21S485H-A
Package Includes:Â
- 1 x TD321S485H-A Mornsun 3.3V Input Single High-Speed RS485 Isolated Transceiver Module with Automatic Switching – SMD Package
Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
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