A good PCB layout for the TDA7387 involves keeping the power supply lines (VIN and VOUT) as short as possible, using a solid ground plane, and placing the input and output capacitors close to the IC. Additionally, it's recommended to use a shielded inductor and to keep the PCB as compact as possible to reduce radiation.
The inductor value depends on the input voltage, output voltage, and switching frequency. A good starting point is to use the inductor value recommended in the datasheet (e.g., 10uH). Then, adjust the value based on the specific application requirements, such as output current and ripple voltage.
The maximum output current of the TDA7387 depends on the input voltage and the external components used. According to the datasheet, the maximum output current is 2A, but this can be limited by the inductor saturation current, output capacitor ESR, and PCB thermal design.
To ensure the TDA7387 operates within the SOA, monitor the input voltage, output voltage, and output current. Make sure the input voltage is within the recommended range (4.5V to 18V), and the output voltage is within the specified range (1.2V to 15V). Also, ensure the output current is within the maximum rating (2A) and the junction temperature is below 150°C.
The TDA7387 has a thermal shutdown feature that turns off the device when the junction temperature exceeds 150°C. To ensure reliable operation, provide adequate heat sinking, use a thermally conductive PCB material, and avoid blocking airflow around the device.
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About STMicroelectronics
STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components.
STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut
