Hi-link HLK-TD521D485H-A high-speed communication isolation interface module single channel automatic transceiver RS485
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Visitor78
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Buycount：
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Price$1.50
Download files:
DC to DC power module:
1W: https://drive.google.com/drive/folders/1vk6luTBKSC5gfwLJC-DbyEZYVDwk87JV
2W: https://drive.google.com/drive/folders/1vjf-77LCVQl16Hcb1phADiU3Hz14mhYB
3W: https://drive.google.com/drive/folders/13pTx02uL4moskJ-PQsBYFytdq2pPt2mN
5W: https://drive.google.com/drive/folders/1okF0YdP1Xs35HxnAkTm45WOK0kH7qlb5?
6W: https://drive.google.com/drive/folders/18IOw7PyIx99lbm3u0FEhkepC82w601sw
10W: https://drive.google.com/drive/folders/1vuJp5ZoJA9Ci0M4wCS8nT689LVzgh2tC
12W: https://drive.google.com/drive/folders/1becUdxQODQ25_A_iarNnun3Vmi_wow1g
20W: https://drive.google.com/drive/folders/182aHyvoN8J0fCurg65jOkfQp17dyaXP6
30W: https://drive.google.com/drive/folders/1StP-0SJDyFpH3yQMLLQjkQXMDXc-RGeP
40W: https://drive.google.com/drive/folders/1IXRm7dueYYTNoyXCFp88wRQexmKAgCLm
B0505S-1WR2: https://drive.google.com/file/d/16BPrOWkzOz7efnf3OvF1XjClKGnO6znv/view
TD521D485H-A：
https://drive.google.com/drive/folders/1kTt0Z3hjKKrIF3OCIDGdwQ4KotDJ8SGA?usp=sharing
AC to DC power module:
https://drive.google.com/drive/folders/1HcZhdzhKA4p08B_YEv_A6sUOvNJ0Ei9n?usp=sharing
Product Feature
Built in high-efficiency isolated power supply
Automatic data transmission and reception function
Baud rate up to 500kbps
Isolation and voltage withstand at both ends 3000VDC
Working environment temperature:- 40℃～+85℃
The same network can support connecting 128 nodes
Integrating isolation and ESD bus protection functions
Standardized packaging method, good compatibility performance
D321D485H-A/ TD521D485H-A，the main function is to convert logical levels into differential levels of RS485 protocol, achieve signal isolation, and is an RS485 protocol transceiver module that uses IC integration technology to achieve power isolation, signal isolation, RS485 communication, and bus protection.
The product has a built-in constant voltage isolation power supply, which can achieve 3000VDC electrical isolation. In addition, the product has automatic switching of transmission and reception functions, eliminating the need for CON pins for transmission and reception control, which reduces the complexity of the design to a certain extent.
Limited characteristic
| Project | working conditon | Min. | Typ. | Max. | Unit |
| Input impulse voltage (1sec. max.) | 3.3VDC input series | -0.7 | - | 5 | Vdc |
5VDC input series | -0.7 | - | 7 | ||
| Pin soldering temperature | Welding point distance from shell 1.5mm, 10 seconds | -- | -- | 300 | ℃ |
Input characteristic(3.3V series)
| Project | symbol | Min. | Typ. | Max. | Unit | |
Input power supply voltage | Vdc | 3.15 | 3.3 | 3.45 | Vdc | |
| TXD logic level | High level | VIH | 0.7VCC | 3.3 | 3.6 | |
| Low level | VIL | 0 | -- | 0.8 | ||
| TXD logic level | High level | VOH | VCC-0.4 | 3.1 | -- | |
| Low level | VOL | 0 | 0.2 | 0.4 | ||
TXD driving current | IT | 2 | -- | -- | mA | |
| RXD output current | IR | -- | -- | 10 | ||
| serial interface | Only compatible with UART interface of+3.3V | |||||
Input characteristic(5V series)
| Project | symbol | Min. | Typ. | Max. | Unit | |
Input power supply voltage | Vdc | 4.75 | 5 | 5.25 | Vdc | |
| TXD logic level | High level | VIH | 0.7VCC | 5 | 5.5 | |
| Low level | VIL | 0 | -- | 0.8 | ||
| TXD logic level | High level | VOH | VCC-0.4 | 4.8 | -- | |
| Low level | VOL | 0 | 0.2 | 0.4 | ||
TXD driving current | IT | 2 | -- | -- | mA | |
| RXD output current | IR | -- | -- | 10 | ||
| serial interface | Only compatible with UART interface of+5V | |||||
Transmit characteristic
| Project | symbol | Min. | Typ. | Max. | Unit | |
| data-delay | TXD sending delay | tT | -- | -- | 250 | ns |
RXD receiving delay | tR | -- | -- | 110 | ||
Iutput characteristic
| Project | symbol | Min. | Typ. | Max. | Unit |
| differential voltage level | Vdiff(d)，no load resistor | 1.5 | -- | -- | Vdc |
| differential input impedance | -7V≤VCM≤+12V | 96 | -- | -- | kΩ |
Built in pull-up and pull-down resistors | -- | 47 | -- | ||
Isolation output power supply voltage | Rated input voltage | 4.9 | 5 | 5.3 | Vdc |
| Bus interface protection | ESD electrostatic protection | ||||
| Note: The isolated output power pin is only used for external pull-up and pull-down resistors (recommended maximum current<25mA) and is not recommended for other purposes. | |||||
More detail please contact us: sales@hlktech.com
