LM25085AMYEEVAL/NOPB

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The LM25085AMYEEVAL/NOPB is an evaluation board which is designed to help engineers evaluate the performance and features of the LM25085M off-line switcher. It contains the necessary components and measurements needed to understand the features and characteristics of the LM25085M off-line switcher. Companies are able to use this board to evaluate the performance of the LM25085M off-line switcher in order to help integrate it into their specific applications. This evaluation board is designed to power a 5V/1A output.

The LM25085M Off-Line Switcher is a controller optimized to provide high efficiency and low EMI operation for small form factor applications. This switcher uses a constant on time, valley current mode to provide an efficient, low component count power supply solution. The LM25085M is designed to drive a standard, low cost power MOSFET in the switcher to produce optimized switching frequencies for efficient and low EMI operation.

The evaluation board covers a wide range of applications ranging from 5V/1A to 25V/0.3A to power 5V/1A output. It uses a standard MOSFET, allowing the user to customize the application with a variety of different output currents and voltages. The evaluation board also provides the option to select the power supply transient response time between 2.5ms and 4.5ms, allowing the user to select the best response time for their application. This feature allows the user to optimize the transient response of their power supply depending on the application.

The evaluation board also contains all the necessary components for controlling the ripple current in the power supply. It uses a series of capacitors, diodes, resistors, and an inductor, which are part of the standard component kits, to help reduce the ripple current. The board also has a peak current limit feature which allows the user to limit the peak current of the switcher to a certain amount. This helps improve the system’s noise immunity and reduce power consumption.

The working principle of the LM25085M Off-Line Switcher is based on a constant on-time, peak current mode. This means that the output current of the switcher is controlled by a peak current limit. The peak current value is set by the control circuit before the MOSFET is switched on. Since the peak current limit is applied before the switch is turned on, it ensures that the output current does not exceed the peak current limit.

In summary, the LM25085M Off-Line Switcher Evaluation Board is an excellent way to evaluate the performance and features of the LM25085M Off-Line Switcher. This board can be used to test the output current, voltage, and ripple current of the switcher in order to determine if it is suitable for the purpose of the application. The board is versatile enough to be used in a wide range of applications, and it is designed to be used with a variety of different output currents and voltages. Lastly, the board provides the ability to select the power supply transient response time and the peak current limit feature, which allow the user to optimize the transient response and reduce power consumption in their application.

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