LM64CILQ-F/NOPB datasheet by Texas Instruments

LM64CILQ-F/NOPB Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  Texas Instruments recommends a thermal pad layout with a minimum of 2 oz copper thickness, and a thermal via array with a minimum of 10 vias under the package to ensure optimal heat dissipation.
• How do I ensure accurate temperature measurement with the internal temperature sensor?
  To ensure accurate temperature measurement, it's essential to calibrate the internal temperature sensor during production. TI provides a calibration procedure in the datasheet, which involves measuring the temperature sensor output voltage at multiple temperatures and calculating the corresponding temperature values.
• What is the maximum allowed voltage on the VCC pin?
  Although the datasheet specifies a recommended operating voltage range of 3.135 V to 3.465 V, the absolute maximum rating for the VCC pin is 4.0 V. Exceeding this voltage can cause permanent damage to the device.
• Can I use the LM64CILQ-F/NOPB in a high-reliability or automotive application?
  Yes, the LM64CILQ-F/NOPB is qualified for automotive and high-reliability applications. It meets the requirements of the AEC-Q100 standard, and TI provides a dedicated automotive-grade version with enhanced quality and reliability features.
• How do I handle the device's power-on reset (POR) and brown-out reset (BOR) features?
  The LM64CILQ-F/NOPB has a built-in POR and BOR circuitry to ensure reliable startup and operation. To handle these features, ensure that the power supply ramps up slowly (typically 10 ms to 100 ms) and that the voltage stays above the BOR threshold (typically 2.2 V) during operation.