P9035A-EVK

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Evaluation and demonstration boards and kits are used to provide a quick and easy way to explore the capabilities of electronic components and systems. The P9035A-EVK evaluation and demonstration board from Texas Instruments is such a tool. It is designed to help developers shorten their design cycle by rapidly creating PMBus 1.3 compliant DC/DC converters and polishing the control loop loop behavior.The P9035A-EVK evaluation board is based on TI’s P9035A high performance digital power supply controller. The evaluation board includes a variety of components suitable for implementing a DC/DC converters. These components include the P9035A, three inductors, a feedback resistor, two input voltage-sense resistors, two output voltage-sense resistors, a ceramic capacitor, a decoupling capacitor, and an off-board resistor. The board also features a built-in USB-UART interface, power and reset buttons, and a programming header. A dedicated programming software is available for the evaluation board, which helps to quickly program and download user-defined settings into the P9035A so that the proper control loop parameters can quickly compiled.

The evaluation board also features a wide range of integrated systems that support digital power control. These include a digitally compensated bandgap reference, an accurate on-chip voltage measurement, a versatile current-sense amplifier, an integrated shunt fet, and a monitoring ADC. This eliminates the need for designers to use separate components to measure and control current, voltage, temperature, and power. Additionally, the board can be connected directly to an FRAM-based multi-rail digital power solution from TI. This makes it possible to design more efficient and cost-effective multi-rail systems.

The core operating principle of the P9035A-EVK evaluation board is based on the duty-cycle modulation PWM control scheme. This scheme uses an on-board clock to generate pulse width modulated signals that are sent to the digital power supply controller. The P9035A then sets the duty cycle and modulates the switching frequency of the MOSFET to control the output voltage. The input voltage is regulated by monitoring the feedback voltage and adjusting the duty cycle accordingly. Similarly, current is regulated by monitoring the current sense voltage and adjusting the duty cycle.

The P9035A-EVK evaluation and demonstration board from Texas Instruments allows developers to quickly and easily test the capabilities of their DC/DC convertors. It can be used to design high performance power supply systems with improved stability and efficiency. The evaluation board can also be connected directly to multi-rail systems for use in more complex applications. With the help of the dedicated software, users can quickly program and download the desired settings into the P9035A to optimize the performance of their design.

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