MAX15108AEVKIT#

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The MAX15108A EVKIT # is a multi-functional DC/DC evaluation kit with good functions such as variable output voltage, over-temperature protection, over-current protection, output current persistent protection and unique integrated inside temperature compensation circuit. It is widely used for AC/DC (Off-Line) SMPS programs.

In order to better understand the use area and the working principle of the MAX15108A EVKIT #, let’s discuss the composition, technical features and application examples of this evaluation board. The MAX15108A EVKIT # integrates warm soft start, constant frequency current mode control, integrated fault protection, internal power MOSFETs, and a wide duty cycle range.The kit is composed of a power supply unit, a PMIC control unit, a high & low side MOSFET driver, an I2C interface, eight pin header and other peripheral components. The MAX15108A evaluation board provides a 0.8V to 3.6V adjustable output voltage capability and a 12V to 26V DC input voltage.

The current operating mode of the MAX15108A EVKit# is the constant frequency current mode control to ensure that the voltage can be supplied with a cost-effective, reliable, and maximum power conversion efficiency. During normal operation, the switching frequency remains constant, while it would adjust higher when the load increases, lower it when the load decreases and eventually reach steady value after a certain period of time. It is necessary to note that the switching frequency of the constant frequency current mode is depending on the load current changes, the processor or board temperatures, and the other settings in the configuration files.

The LP2951-15CPA is a 3V fixed output voltage regulator used in the MAX15108A EVKIT # as the main power supply, which helps in saving space with eA/W/2~80mV dropout voltage. Additionally, the MAX15108A EVKIT # is equipped with a temperature compensation control circuit. This circuit monitors the inside of the converter in order to adjust the feedback compensation accordingly when the temperature changes, which ensures normal operation of the circuit.

The MAX15108A EVKIT # provides system low voltage operation and integrate fault protection. With short circuit, over-temperature, over-voltage, and over-current protection, the system can be protected from damages. The power on reset circuitry will automatically reset the system and protect it from any damage when the over-temperature protection activates.

The MAX15108A EVKIT # is especially suitable for the AC/DC (Off-Line) SMPS applications. This evaluation board is an excellent choice for off-line converters that require a low standby power consumption, low cost solution, and wide output voltage range for various power levels. Furthermore, it can be used in applications such as computers, lawn mowers, and any appliance that requires a low-cost power conversion solution.

In conclusion, the MAX15108AEVKIT # is a multi-functional evaluation board with excellent features. It is suitable for AC/DC (Off-Line) SMPS applications as it provides a low cost and high stability solution. The constant frequency current mode ensures a reliable operation and high power conversion efficiency. It also integrates temperature compensation, fault protection, integrated power MOSFETs, and a wide duty cycle range, which make it a perfect choice for AC/DC applications.

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