LM2736X EVAL

The LM2736X evaluation board is an off-line switching power supply (SMPS) designed to evaluate the features of the LM2736X buck converter family. It is suitable for high efficiency and high power density DC/DC and AC/DC applications.

The board is designed to run in open loop, or be easily expanded to be closed loop with certain steps. It consists of an printed circuit board (PCB), a three-terminal regulator, a feedback network, some resistors, and some connectors. The printed circuit board (PCB) contains the power stage and the control stage. The power stage consists of a MOSFET, four Schottky diodes, and two diodes used as a voltage clamp. The control stage contains the power components, the PWM driver, and the buck converter integrated circuit (IC).

The operating principle of the evaluation board is based on the buck topology. By passing the output voltage through a feedback network, the buck converter generates a feedback signal which is then fed back into the control stage. The feedback signal is compared with the reference voltage and the differences are used to control the power switch, allowing the output voltage to be finely adjusted so that it can remain close to the reference voltage level. This closed-loop approach providesstableandaccurateoperation.

The board is designed to easily pair with external devices such as a digital to analog converters (DAC), dimmable LED drivers, thermocouples, or an oscilloscope. For more advanced applications, the control stage provides an adjustable frequency and peak current limit. The board also features a low voltage disconnect pin, enabling the board to be connected to a wide variety of load types. Furthermore, the board has several protection features such as overtemperature, overcurrent, and short circuit protection.

In conclusion, the LM2736X evaluation board is an off-line switching power supply (SMPS) designed to evaluate the features of the LM2736X buck converter family. It is suitable for applications requiring high efficiency and power densities. The board is easy to pair with external devices and has several protection features to ensure safe operation. It can be used in both open loop and closed loop configurations and provides stable and accurate operation.