TPS2481EVM-001

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Evaluation and Demonstration Boards and Kits offer efficient, quick, and affordable ways to evaluate and demonstrate functionality of various pieces of technology. The TPS2481EVM-001 is one such board and kit, with a wide range of applications, great ease of use, and a working principle that makes it a reliable choice for a range of technological needs.

The TPS2481EVM-001 board and kit is designed for applications in feedback and protection circuits for point-of-load DC/DC converters. The board features an evaluation module with features such as an adjustable soft start release time, maximum current limit, maximum voltage limit, and adjustable minimum voltage limit.

The development kits come with a wide-ranging set of features that makes them attractive for various applications. This includes the ability to interface with a variety of single- or multiple-input DC/DC converters, adjustable maximum and minimum output current settings, variable loop compensation, and adjustable gate-drive outputs. The kit also comes with an onboard bootstrap circuit and an adjustable high-side drive current.

In addition to all these features, the kit also includes two integrated protection circuits with adjustable threshold levels for both over-current and over-voltage protection, as well as adjustable blending parameters for seamless transition between the two protection circuits. With these features, the TPS2481EVM-001 board and kit is a great choice for testing and demonstrating feedback and protection circuits for DC/DC converters.

The working principle of the TPS2481EVM-001 board and kit is simple and reliable. It uses a combination of linear, digital and mixed-signal circuitry to provide the features listed above. The main components of the board are the controller, the feedback control circuit, the current limit comparator, the gate drive circuit, and the current sense circuit.

The controller is responsible for providing the overall control of the evaluation board. It generates the voltage sequence necessary for maintaining the desired output voltage and for controlling the current limit and over-voltage protection circuits. It also monitors the current output of the evaluation board in order to provide the basic regulation functions.

The feedback control circuit forms the core of the evaluation board. It is used to faithfully reproduce the output voltage in order to maintain a stable operating point. The circuit uses a combination of linear and digital components such as an operational amplifier, a voltage reference, pulse-width modulation, and digital logic.

The current limit comparator is used to detect when the load current exceeds the preset limit and to signal the controller to reduce the output voltage. The over-voltage protection circuit of the evaluation board is used to control the output voltage when the voltage exceeds the preset maximum. The integrated circuits are designed such that the output voltage will be reduced safely and in a controlled manner when an over-voltage condition is detected.

The gate drive circuit provides the switching of the power MOSFETs. The gate drive circuit consists of pulse-width modulated (PWM) operational amplifiers, coupled with digital logic, to provide the necessary control for the MOSFETs. The gate drive circuit also includes a bootstrap circuit, allowing for efficient and reliable switching of the power MOSFETs.

Finally, the board includes a current sense circuit. This circuit is used to monitor the output current of the evaluation board. The current sense circuit is used to monitor the load current to ensure it remains within its preset limits.

The TPS2481EVM-001 board and kit is an impressive solution for evaluating and demonstrating feedback and protection circuits for DC/DC converters. It combines a wide range of features and a reliable working principle to ensure optimal performance for any application.

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