TPS549D22EVM-784

Series:	D-CAP3™
Part Status:	Active
Main Purpose:	DC/DC, Step Down
Outputs and Type:	1, Non-Isolated
Voltage - Output:	1V
Current - Output:	40A
Voltage - Input:	5 V ~ 16 V
Regulator Topology:	Buck
Frequency - Switching:	650kHz
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	TPS549D22

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TPS549D22EVM-784 is an evaluation board designed by Texas Instruments for DC/DC & AC/DC (Off-Line) SMPS applications. It has been specifically designed to provide comprehensive testing of the standard TPS549D22 Synchronous Buck Controller.This evaluation board has a design capable of providing a regulated output power in a wide range: from 2.6V and 6A up to 22V and 5A. The evaluation board supports multiple input voltage configurations ranging from 4.5V to 28V. The DC/DC converter on the board can supply between 2.6V and 5A, or 4.5V and 4V, respectively. The AC/DC converter supports up to 6A with an input voltage range between 4.5V and 28V.The evaluation board also has the capability to adjust the output current and voltage level by using a potentiometer contained within the board. This allows the user to easily adjust the output voltage and current values to obtain the desired power levels for specific applications.At a closer look at the working principle of the TPS549D22EVM-784 evaluation board, we can see that it utilizes a synchronous buck controller with a high-current switch to reduce the output voltage of the intended power source. The buck converter uses a pair of transistors with very fast switching speed and low resistance. The transistors are combined in a single package with the control logic and the reference voltage to form the buck controller. This buck controller controls the current in the power conversion circuit, while also regulating the output voltage. The buck controller, in turn, is controlled by the feedback (FFB) circuit contained in the evaluation board. This feedback circuit monitors the output of the converter, comparing it against the set voltage values, and then adjusts the adjustment signal. This adjustment signal is given to the buck controller to allow it to change the on-time and the off-time of the transistor pair, thereby controlling the current in the power conversion circuit.The TPS549D22EVM-784 evaluation board also features several protection features to ensure optimal operation. It features current-foldback, soft start and hiccup over-temperature protection to ensure that the output voltage is not exceeded, and the converter does not become overloaded. Additionally, the evaluation board includes an LED indicator, which lights up when the converter is on and producing a regulated output voltage, and provides a visual indication of the output voltage levels.The TPS549D22EVM-784 evaluation board is the ideal tool for designers who need a reliable and highly efficient power converter for their projects. With its wide range of features, it is the perfect solution to develop applications quickly and without any troubleshooting involved. Furthermore, thanks to its fast and reliable switching speed, the TPS549D22EVM-784 evaluation board is ideal for a range of applications, such as powering high-brightness LED systems or other high-current circuits.

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