US Tariff Estimator: TDA1170S by STMicroelectronics
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
This table gives cross-reference parts and alternative options found for TDA1170S. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of TDA1170S, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
The recommended PCB layout for the TDA1170S is to keep the input and output stages separate, with a ground plane in between to reduce EMI. The input stage should be placed near the input connector, and the output stage near the output connector. Decoupling capacitors should be placed close to the IC.
The input capacitor (Cin) should be chosen based on the input voltage and frequency, with a recommended value of 10-22uF. The output capacitor (Cout) should be chosen based on the output voltage and frequency, with a recommended value of 10-47uF. The capacitor values should also be derated for voltage and temperature.
The maximum power dissipation of the TDA1170S is dependent on the ambient temperature and the thermal resistance of the package. The maximum power dissipation is typically around 1.5W, but this can be increased with proper heat sinking and thermal management.
The TDA1170S has built-in overvoltage protection (OVP) and undervoltage protection (UVP) circuits. However, additional protection can be added using external components such as voltage regulators, zener diodes, and TVS diodes. It is also recommended to add input and output voltage monitoring circuits to detect and respond to overvoltage and undervoltage conditions.
The recommended operating temperature range for the TDA1170S is -40°C to +125°C. However, the device can operate up to +150°C with derated performance. It is recommended to ensure proper heat sinking and thermal management to maintain a safe operating temperature.