A good PCB layout is crucial for the TEA1703TS/N1,115. Ensure a solid ground plane, keep the input and output tracks short and wide, and use a common mode choke to reduce EMI. Refer to the NXP application note AN11524 for a detailed layout guide.
Choose a transformer with a turns ratio that matches the input and output voltage requirements. Ensure the transformer's power rating and core material are suitable for the application. NXP provides a transformer selection guide in the TEA1703TS/N1,115 datasheet.
The maximum allowed input voltage ripple is 10% of the nominal input voltage. Exceeding this limit may affect the converter's stability and efficiency. Use a suitable input filter or voltage regulator to ensure a stable input voltage.
The TEA1703TS/N1,115 does not have built-in OVP. Implement an external OVP circuit using a voltage supervisor IC, such as the NXP PCA9455, to monitor the output voltage and shut down the converter in case of an overvoltage condition.
The recommended operating temperature range for the TEA1703TS/N1,115 is -40°C to 125°C. However, the device can operate up to 150°C with derating. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.