TPS56921EVM-188

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TPS56921EVM-188 is an evaluation board that supports offline flyback topology. It delivers a maximum peak current of 8A. The board is based on TPS56921 step-down converter IC, designed for DC/DC & AC/DC (Off-Line) SMPS applications.

The TPS56921EVM-188 circuit board is comprised of an array of components, including a TPS56921 DC/DC converter IC, a transformer, capacitors, resistors, a diode, an LED, and other components.

The TPS56921 is a synchronous step-down dc-dc converter with an integrated low-side MOSFET. It is designed to provide high efficiency for applications that require an offline power supply with a wide input voltage range, and up to 8A of output current.

The TPS56921EVM-188 board is designed to be plug-and-play; users just need to connect the board to a DC power supply (<20V) and the corresponding output voltage. The board is capable of generating a wide range of output voltages, between 0.6V to 18V.

The TPS56921EVM-188 performs constant voltage (CV) operation in the presence of resistive (RMS) or quasi-resonant (RMS) load with boundary or valley mode. The output voltage of the board can be adjusted by varying the control pin voltage with the internal reference voltage. This pin voltage is typically adjusted using a potentiometer or other external voltage control element.

The TPS56921EVM-188 has an integrated soft-start feature that helps prevent output voltage overshoot. The board also features an output disconnect switch, which can be used to disconnect the output from the input when it is not needed. This feature also helps to reduce inrush current during start-up.

The TPS56921EVM-188 also includes a thermal disconnect functionality. When the die temperature reaches a certain predetermined level, the converter shuts down, thus protecting the die from being damaged.

The board also features a fault signal output, which can be used to drive an LED or other element to indicate a fault condition. In addition, the board includes an output monitor pin, which can be used to monitor the output voltage.

Overall, the TPS56921EVM-188 is an ideal evaluation board for DC/DC & AC/DC power supply applications. It is designed to provide a wide input voltage range, and is capable of providing up to 8A of output current. Furthermore, the board has several integrated protection features, such as output disconnection, soft-start, and thermal protection.

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