STMicroelectronics recommends a PCB layout with a thermal pad connected to a large copper area on the bottom layer, and multiple vias to dissipate heat efficiently.
To ensure reliable operation at high temperatures, it's essential to follow the recommended operating conditions, use a suitable thermal interface material, and ensure good airflow around the device.
Although the datasheet specifies the recommended operating voltage range, it's generally recommended to limit the input voltage to 5.5V to prevent damage to the internal ESD protection diodes.
While the STTA806DI is not specifically designed for high-humidity environments, it can still be used with proper precautions such as conformal coating, hermetic sealing, or using a moisture-resistant package.
To troubleshoot issues with the device not turning on, check the power supply voltage, ensure proper connections, and verify that the enable pin is properly configured. Also, check for any damage to the device or PCB.