Texas Instruments provides a recommended PCB layout in the DS91D180TMA/NOPB evaluation module documentation, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
To ensure reliable operation over the full temperature range of -40°C to 125°C, it is essential to follow proper thermal management practices, such as providing adequate heat sinking, using thermal interface materials, and avoiding thermal hotspots. Additionally, ensure that the device is operated within its specified voltage and current limits.
Operating the DS91D180TMA/NOPB at a lower voltage than the recommended 3.3V may result in reduced performance, increased power consumption, and potential reliability issues. Operating at a higher voltage may result in increased power consumption, heat generation, and potentially damage the device. It is recommended to operate the device within the specified voltage range for optimal performance and reliability.
To troubleshoot issues with the I2C interface, check the I2C bus voltage levels, clock frequency, and signal integrity. Ensure that the I2C bus is properly terminated, and that there are no bus conflicts or signal reflections. Use an oscilloscope or logic analyzer to monitor the I2C bus signals and identify any errors or anomalies.
When using the DS91D180TMA/NOPB in a high-reliability or safety-critical application, it is essential to follow proper design and verification practices, such as performing thorough testing and validation, using redundant or fault-tolerant designs, and ensuring compliance with relevant industry standards and regulations.
DS91D180TMA/NOPB datasheet
by Texas Instruments
