Boardoza TPT7487 Isolated RS485 Breakout Board
Boardoza TPT7487 Isolated RS485 Board is a high-reliability industrial communication solution designed for isolated RS485 data transmission applications. Based on the TPT7487 isolated half-duplex RS485 transceiver, the board integrates signal isolation, high transient immunity, and robust bus protection in a compact design.
The device supports up to 500 kbps communication speed with true 1/8 unit load capability, allowing up to 256 nodes on the same RS485 network without repeaters. Integrated galvanic isolation provides up to 5000 VRMS isolation withstand voltage and high common-mode transient immunity up to 150 kV/µs, improving reliability in noisy industrial environments. The board also includes fail-safe receiver operation, ensuring stable logic output during open, shorted, or idle bus conditions.
Key Features
- TPT7487 based isolated RS485 transceiver
- Half-duplex RS485 communication support
- Communication speed up to 500 kbps
- Integrated galvanic isolation up to 5000 VRMS
- High common-mode transient immunity up to 150 kV/µs
- True 1/8 unit load supporting up to 256 nodes
- Fail-safe receiver for open, shorted, or idle bus conditions
- Low propagation delay and low bus current operation
- Suitable for industrial communication and automation systems
- On-board termination resistor (R8) can be enabled or removed as required by the RS485 network topology
Technical Specifications
- Item
- TPT7487 Isolated RS485 Board
- Input Voltage
- Type-C & 3V3-5V
- Functions
- Isolated half-duplex RS485 communication
- Data Rate
- Up to 500 kbps
- Isolation Voltage
- 5000 VRMS
- Unit Load
- 1/8 UL
- Operating Temperature
- -40°C/+125°C
- Board Dimensions
- 40x40mm
Support
For technical questions, documentation and issue reports, use the GitHub repository or write to us directly.