EVAL5973D

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EVAL5973D is the newest evaluation board from TI dedicated to offline SMPS applications such as power supplies, adapters, chargers, and DC/DC converters. It is designed to allow quick evaluation of Flyback, Forward and Push-pull topologies. The EVAL5973D provides users with the ability to easily develop and evaluate application circuit topologies for low and mid-power applications.

The EVAL5973D with its selectable input voltage range of 6 V or 12 f, and output to 50 V for a range of up to 1 A of current, make this a perfect fit for design and evaluation of AC and DC/DC applications such as computer power supplies, LED lighting, automotive, and consumer electronics. The on-board power components needed for the evaluation, such as, power MOSFETs, PWM controller, transformer, capacitors, and rectifying elements, are already mounted on the board. It also features an on-board MCU with the required accompanying software for configuration and monitoring. The EVAL5973D is suitable for different operating systems such as Windows 7, 8, and 10.

The main feature of the EVAL5973D is its high-performance PWM controller. It is designed for hard switching topologies such as flyback, forward and push-pull. Its integrated features, such as synchronous rectify ready and burst mode, make it suitable for operating at low power levels as well as higher power levels. The EVAL5973D package also has a MOSFET pre-driver with over-current protected outputs, allowing the user to directly control the power MOSFETs without additional circuitry. Its wide voltage range makes it suitable for different flyback, forward and push-pull topologies.

The working principle of the EVAL5973D involves controlling the power MOSFETs with the pre-driver, and the signals generated from the pre-driver are used as an input to the high-performance PWM controller. The PWM Controller then generates the output voltage and current, based on the configuration and commands from the user. For burst-mode operation, the PWM controller uses an internal oscillator to generate the pulses that will control the MOSFET. The PWM controller also has internal protection mechanisms to protect the board from over voltage, over current, and over temperature conditions.

The EVAL5973D evaluation board can be used for a wide range of applications such as isolated power supplies, LED lighting, computer power supplies, automotive, and consumer electronics. It can be used for evaluation of different topologies such as flyback, forward, and push-pull topologies. The EVAL5973D also features the high-performance PWM controller with integrated protection mechanisms and versatile input and output configurations, making it a great tool for developing and evaluating application circuits for low and mid-power applications. With its integrated pre-driver, the user can directly control the MOSFETs without additional circuitry.

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