TPS54061EVM-142

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The TPS54061EVM-142 Evaluation Module (EVM) provides a complete, regulated, off-line, AC to DC power supply solution as a 100 W, 36 V to 10 V, 3 A output, power factor corrected (PFC) component evaluated device. The solution has been designed to meet the requirements of global energy efficiency regulation while providing high performance and a simple implementation. This module is ideally suited to replace linear regulators, DC-DC converters and higher power single stage resistor bridges due to its ability to deliver high performance, energy efficient power solutions with a minimal amount of external components.

This EVM offers low component count and easy implementation. The TPS54061EVM-142 operates from a universal input AC supply, typically 85 – 265 V AC input volts. The input filter and full wave bridge rectifier are included. The TPS54061 regulates the output voltage with current limiting and thermal shutdown for over-temperature protection. The TPS54061 is a constant current, constant voltage (CCCV) PFC controller operating from a quasi-square wave input voltage. The TPS54061 provides a low component count with simple layout and noise immunity. The demoboard consists of the following key components: The TPS54061 EVM-142, a PFC boost stage, a PWM controller with the TO-220 7-pin package, an input filter stage and a rectifier. The evaluation board provides test points for key nodes and measurements of critical parameters.

The TPS54061 is an integrated PFC high voltage power factor corrected controller. It uses a quasi-square wave. The TPS54061EVM-142 works in a synchronous rectifier topology, in CV-CC operation. Its internal CV loop is suitable for a wide load range and can sustain a output current up to 10 A. In addition to providing high efficiency, the TPS54061 also offers a large amount of protection features which improved the life of the board. Its input surge protection includes line transient clamp in the form of a 1N4148 line-lock diode. The output overvoltage, output over current and output short circuit are protected by an overload, fusing and voltage limiting features.

The gate drive circuit makes use of an integrated MOSFET driver and a voltage detector to sense the maximum level of the transformer secondary voltage. The on-chip maximum voltage detector (MVD) also provides comprehensive output protection in the event of an overvoltage or short-circuit fault. It also monitors inductor current, which provides the current sense. The MOSFET gate drive circuit also provides high frequency oscillator for synchronous rectification, as well as a power good signal output for system indication. The total power dissipation of the TPS54061EVM-142 EVM application is 6.2 W (0.51 A). This makes it an ideal solution for applications where high efficiency, low power dissipation and protection features are required.

The TPS54061EVM-142 application field and working principle proves to be a very effective and powerful solution when it comes to providing a regulated, efficient, off-line, AC to DC power supply solution for a wide range of applications. This EVM offers a highly efficient, low component count solution for various applications. It offers fast responding, accurate output voltage regulation and protection. As it operates from a universal AC supply, the TPS54061EVM-142 is an ideal solution for applications such as industrial and consumer electronics, medical systems, communication infrastructure, lighting and control systems. In these fields, the TPS54061EVM-142 stands out with an improved efficiency, better regulation and minimal external components.

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