TPS54973EVM-017

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TPS54973EVM-017 is a highly efficient off-line synchronous buck Power Management Unit (PMU) evaluation module suitable for measurements of the TPS54973 controller. Its encapsulation is a very small WLP package, with EMI-reducing spread-spectrum capabilities. This EVM provides designers with the capability to evaluate the TPS54973 family of products in a practical design environment. Samples of the TPS54973, an average current-mode pulse-width modulation (PWM) controller with tunable loop-damping, allows the user to customize the control-to-output impedance ratio and the conversion efficiency.

The application field of TPS54973EVM-017 is intended for industrial and telecommunication related point-of-load, such as DSP, FPGA and ASIC power systems, NVRAM, and lithium ion batteries. These areas benefit tremendously from the efficiency, accuracy, and versatility of the TPS54973EVM-017. It is capable of a wide range of input and output voltages, which can support various types of designs and applications.

The working principle of TPS54973EVM-017 is based on an off-line synchronous buck PMU topology. The device utilizes a high-voltage differential amplifier containing an internal error amplifier and a reference, which creates the desired output voltage. With a high-efficiency PWM controller, a ramp generator is used to reduce switching losses and generate the optimum ramp-up times. The output of the device contains a synchronous rectifier and is galvanically isolated from the input side of the DC/DC converter, thus ensuring the safe operation of the system. Additionally, the EVM\'s pulse width modulation (PWM)controller is fully selectable between high-gain, low-pass, and low-gain modes, providing superior flexibility to realize the best system performance.

The TPS54973EVM-017 has a wide range of features such as safety features like short-circuit protection, over-voltage protection, thermostat, and over-power protection. It also has power efficiency mode, allowing higher efficiency modes of operation depending on the load. It also provides selectable voltage modes and optimized operating points. The TPS54973EVM-017 also has internal bypass circuitry allowing for smooth transitions between different modulation frequencies. The EVM also has adjustable phase-shifted, full-bridge synchronous rectification technology that improves efficiency by reducing switching losses.

The TPS54973EVM-017 is an excellent choice for applications such as automotive, industrial, medical, network and telecommunication, removable battery, LED lighting, and other off-line switching power supplies. With its wide input voltage range, adjustable operating points and various safety features, it can provide high-efficiency, highly reliable and cost-effective power supplies. The use of the TPS54973EVM-017 ensures that the optimum performance is obtained in any application.

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