TPS54228EVM-686

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The TPS54228EVM-686 is a high-performance evaluation module (EVM) designed to evaluate the TPS54228 DC-DC buck controller for synchronous rectification converter applications. The board features four operating modes: constant frequency, constant frequency PWM, burst mode with variable frequency and synchronous rectification. It also features output voltage adjustable from 0.75V to 6.5V with a single external resistor. The evaluation board also works as a reference design for engineers for further advancements or modifications in power supply solutions. In this article, we will discuss the application field and working principle of the TPS54228EVM-686.

Application Field

The TPS54228EVM-686 EVM has a wide range of applications in consumer and industrial electronics, including automotive, computing, and communication products. It is designed for high efficiency power supply solutions in battery-powered portables and medical electronic equipment, for example, point-of-load DC/DC converters, non-isolated AC/DC converters, and generally any general purpose synchronous rectification buck converter application. Its wide input voltage range of 4.5V to 14.5V makes it compatible with most applications.

Working Principle

The TPS54228EVM-686 works on a synchronous rectification buck controller concept for low-cost and high efficiency operation. Working in sync mode with an active low-side MOSFET, the power switch is turned on during the power supply’s high-side current slump, which makes the IC switch from high-side MOSFET to low-side MOSFET and reduces the power dissipation in the high side. This increases efficiency and reduces the size of the overall solution.

The EVM board also integrates the TPS54228 DC-DC buck converter with TI’s low-side MOSFET, LP5907-Q1, which has a low Rds(on) of 60mOhms. The device is equipped with an adjustable output voltage function that allows engineers to easily customize the output voltage of the converter without changing the values of the external resistor. This helps to significantly minimize the number of components used in the power solution. The board also incorporates two FET configuration options, one configured for Load Step Transient Response (LSRT) tests and one for Over Temperature Protection (OTP) tests.

The board also includes indicators to monitor current through the high- and low-side MOSFETs and discharge inductor. The board operates in four different modes, including constant frequency, constant frequency PWM, burst mode with variable frequency, and synchronous rectification. The various operating modes allow the system to effectively meet criteria such as low-noise operation and high efficiency, making it an ideal solution for power supply in applications with medium power requirements.

Conclusion

The TPS54228EVM-686 is an effective evaluation module for the TPS54228 DC-DC buck controller for synchronous rectification converter applications. It is designed to provide high-efficiency power solutions for consumer and industrial electronics, such as point-of-load DC/DC converters, non-isolated AC/DC converters, and servers. The evaluation board also works as a reference design for engineers who are seeking to make modifications and customizations to their power supply solutions. In this article, we discussed the application field and working principle of the TPS54228EVM-686.

The specific data is subject to PDF, and the above content is for reference