AS1344-TD_EK_ST

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AS1344-TD_EK_ST is an Evaluation Board from STMicroelectronics. It is designed for evaluation of the AS1344-TDC offline buck PWM controller IC. This evaluation board is a part of the Evaluation Boards - DC/DC & AC/DC (Off-Line) SMPS series. This board features a constant frequency PWM controllerAS1344-TDC IC with an integrated PWM watchdog circuit. The AS1344-TD_EK_ST evaluation board can be used to study the device features and data sheet performance.

The AS1344-TDC is an integrated circuit designed specifically for off-line switchmode buck systems, and it provides capabilities such as constant frequency PWM control, transient response, overload protection, circuit efficiency, over-voltage protection, under-voltage protection, and a wide supply range from 6V to 65V. The AS1344-TDC IC is also capable of limiting the no-load power consumption to less than 10mW.

The AS1344-TD_EK_ST features a system with a full load power of up to 12W. It has two output voltages: 5V and 12V (max). This evaluation board is also conveniently organized and has clearly identified components and signals. Additionally, the board can be used for a variety of studies, including AC ripple voltage measurement, input/output voltage measurement, and line/load regulation.

In terms of working principle, the AS1344-TD_EK_ST can be considered as a typical buck system. It consists of both an AC input source and an output load. The input of the board receives the AC voltage input and provides it to the primary windings of the transformer. The primary windings step the voltage down and provide the secondary windings with the lower voltage. The secondary windings then convert the low voltage into different forms (5V and 12V) for output.

The AS1344-TDC IC then regulates the output voltages of the board by using feedback signals from the output load. A differential voltage between the power MOSFET’s gate and the input (primary) winding is created by the IC, which then regulates the gate drive, causing the MOSFET to switch off and on in a controlled manner. This creates the switching action necessary for the board’s operation.

The AS1344-TD_EK_ST also features an on-board power supply for powering its controllers. This power supply generates a stable 5V output voltage to provide the power source necessary for the devices on the board. The board also has a thermal sensor to protect the IC from overheating, as well as diagnostic LEDs to indicate the status of the board and the events occurring inside the IC.

The AS1344-TD_EK_ST is an excellent evaluation board for studying the wide variety of features and data sheet performance of the AS1344-TDC IC. This board can be used to optimize the buck system and maximize its efficiency. It is a valuable tool for those who are interested in evaluation boards from STMicroelectronics.

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