LTR10EVHFLR910 - ROHM Semiconductor

LTR10EVHFLR910 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  ROHM recommends a thermal pad size of at least 2mm x 2mm, with multiple vias connecting to a solid ground plane to ensure efficient heat dissipation. A minimum of 1oz copper thickness is also recommended.
• How do I ensure the accuracy of the temperature measurement?
  To ensure accuracy, it's essential to calibrate the sensor using the provided calibration data, and to minimize thermal gradients by keeping the sensor away from heat sources and ensuring good thermal coupling to the target.
• What is the maximum allowed voltage on the VDD pin?
  Although the datasheet specifies a recommended operating voltage range of 2.7V to 5.5V, the absolute maximum rating for the VDD pin is 6.5V. Exceeding this voltage may cause permanent damage to the device.
• Can I use the LTR10EVHFLR910 in a high-humidity environment?
  While the LTR10EVHFLR910 is not specifically designed for high-humidity environments, it can still be used with proper precautions. Apply a conformal coating to the device, and ensure the PCB is designed with moisture-resistant materials and a reliable sealant.
• How do I handle the noise sensitivity of the device?
  To minimize noise sensitivity, use a low-pass filter on the output signal, and ensure a stable power supply with minimal ripple. Additionally, keep the device away from high-frequency noise sources and use a shielded cable for signal transmission.