SNAS817C June 2021 – March 2023 HDC3020-Q1 , HDC3021-Q1 , HDC3022-Q1
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
When a circuit board layout is created from the schematic shown in Figure 9-1, a small circuit board is possible. The accuracy of a temperature and relative humidity measurement is dependent upon the sensor accuracy and the setup of the sensing system. The HDC302x-Q1 measures relative humidity and temperature in its immediate environment, therefore it is critical that the local conditions at the sensor match the ambient environment. Use one or more openings in the physical cover over the device to obtain a good airflow even in static conditions. Refer to the layout Figure 9-3 for a PCB layout which minimizes the thermal mass of the PCB in the region of the HDC302x-Q1, which can improve measurement response time and accuracy.