TPS71933-28EVM-213

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Systems and circuits that require precise power supply voltages to function within certain prescribed performance parameters often need the assistance of regulated voltage sources to ensure reliable operation. For this purpose, evaluation boards such as the Texas Instruments TPS71933-28EVM-213 are used to both monitor and adjust output voltages. Primarily used in automotive or consumer applications, the TPS71933-28EVM-213 employs several features and components to accurately regulate power output while maintaining an excellent consistency in performance.

Design

The TPS71933-28EVM-213 is composed of a linear voltage regulator, a voltage supervisor, a current limiter, a temperature sensor, and an analog-to-digital converter, as well as several capacitors, resistors, and transistors. The linear voltage regulator is used to monitor the output voltage and adjust it in order to achieve a desired result. The voltage supervisor is employed to ensure that any excessive voltage levels are detected and subsequently corrected in order to avoid damage or malfunction. The current limiter prevents any overcurrent conditions by limiting the output current, and the temperature sensor helps to avoid overheating and consequent damage by detecting and responding to temperature changes. Finally, the analog-to-digital converter helps to simplify the voltage regulator’s operation by converting analog signals into digital ones.

Operation

The TPS71933-28EVM-213 is primarily employed to maintain a constant output voltage in the face of ever-changing inputs, and to ensure that these outputs remain regulated regardless of current and external temperature fluctuations. The board begins regulating an output voltage as soon as it is powered on. It achieves this by employing the voltage regulator to monitor the output voltage and adjust it as necessary. The voltage supervisor alerts the system whenever the output voltage exceeds certain predetermined levels, and the current limiter ensures that no overcurrent conditions occur. Meanwhile, the temperature sensor helps to prevent any overheating due to increasing temperatures, and the analog-to-digital converter simplifies the process of voltage regulation.

Moreover, the TPS71933-28EVM-213 can be further enhanced via the use of Texas Instruments’ Enhanced Current Digital Control (ECDC). When employed in conjunction with other current-sensing solutions such as isolators, the ECDC is able to accurately monitor current consumption while simultaneously adjusting the output voltage in accordance with predetermined parameters. This ensures an efficient and reliable power delivery while providing dynamic response capabilities.

Applications

The TPS71933-28EVM-213 is designed for use in automotive and consumer applications. By precisely regulating output voltage levels regardless of input parameters, the board can help ensure that electronic components such as microprocessors, sensors, and communication devices perform to their full capabilities. In addition, the board’s current-protection capabilities enable it to function as an effective overvoltage-protection solution in both mobile and station-based applications. Finally, its temperature-sensing capabilities make it a useful monitor in specialized circuits that require precise temperature control.

Conclusion

The TPS71933-28EVM-213 is a linear voltage regulator evaluation board that is ideal for applications in automotive and consumer electronics. Its combination of linear voltage regulation, voltage supervision, current-limiting, and temperature-sensing capabilities enables it to ensure a consistent output voltage while simultaneously protecting integrated circuits from potential damage due to overcurrent conditions and excessive temperatures. Furthermore, the board is easily customized with the addition of Texas Instruments’ Enhanced Current Digital Control (ECDC) and isolator current-sensing solutions, giving it the potential to operate as an efficient and reliable power-delivery system in mobile and stationary applications.

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