The recommended PCB layout for the MAX297EWE+T involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the traces between the device and the transformer. Additionally, it's recommended to use a shielded transformer and to keep the device away from high-frequency noise sources.
When selecting a transformer for use with the MAX297EWE+T, consider the following factors: turns ratio, inductance, and core material. The transformer should be able to handle the maximum output power and voltage of the device, and its turns ratio should be matched to the input and output voltage requirements. Maxim Integrated provides a transformer selection guide in the datasheet to help with this process.
The MAX297EWE+T has an operating temperature range of -40°C to +125°C, but the maximum ambient temperature range depends on the specific application and the device's power dissipation. In general, the device can operate up to 85°C ambient temperature with a maximum power dissipation of 2.5W, but this can be derated for higher temperatures.
To ensure the MAX297EWE+T is properly biased and configured, follow the recommended application circuit in the datasheet and consult the device's evaluation kit documentation. Additionally, consider the input and output voltage requirements, the desired output power, and the transformer turns ratio when selecting the bias resistors and capacitors.
To ensure EMI and EMC compliance when using the MAX297EWE+T, consider the following: use a shielded transformer, keep the device and transformer away from high-frequency noise sources, use a common-mode choke on the input, and ensure the PCB layout is optimized for low EMI. Additionally, follow the recommended layout and grounding guidelines in the datasheet and consult with an EMI expert if necessary.
MAX297EWE+T datasheet
by Maxim Integrated Products
