Texas Instruments recommends a 2-layer or 4-layer PCB with a solid ground plane and thermal vias to dissipate heat. A minimum of 2 oz copper thickness is recommended for the top and bottom layers.
To ensure reliable operation at high temperatures, it's essential to follow the recommended thermal design guidelines, use a heat sink if necessary, and ensure good airflow around the device. Additionally, consider using a thermal interface material (TIM) to improve heat transfer between the device and heat sink.
The maximum allowed voltage on the input pins is 5.5V, which is the absolute maximum rating. However, for reliable operation, it's recommended to keep the input voltage within the recommended operating range of 3.3V to 5V.
The SN75976A2DGGR is not hermetically sealed, so it's not recommended for use in high-humidity environments. However, if you must use it in such an environment, ensure that the device is properly sealed and conformally coated to prevent moisture ingress.
Texas Instruments recommends using a human-body model (HBM) ESD protection of at least 2 kV and a machine model (MM) ESD protection of at least 200 V. You can use external ESD protection devices or follow proper handling and storage procedures to prevent ESD damage.