NCV8851DBGEVB

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NCV8851 SMPS Controller IC is a common voltage mode Flyback controller IC used for low power AC/DC and DC/DC power conversion. NCV8851DBGEVB is a demo board with a demo version of the SMPS controller IC from ON semiconductor. It is an evaluation board designed to demonstrate and experiment with the features of the ON semiconductor NCV8851 SMPS controller IC for off-line AC/DC and DC/DC applications. This evaluation board is referred to as the NCV8851DBGEVB.

The NCV8851DBGEVB demo board is designed to have a PWM controller over a wide input AC voltage range, and power up to 15W with a secondary side synchronous rectification. It is also capable of operating at heavy load, low line operating voltage and wide output voltage range. The board is capable of providing a wide range of output voltage from 0V to 40V with tighter line and load regulation.

The evaluation board offers an on-board master oscillator that operates at 16MHz and can be used to set the frequency of the on-chip oscillator for designing high frequency switching converter applications. It also provides a number of different operating modes such as Burst-Mode, Fixed-Frequency or Auto-Control depending on the application requirements.

NCV8851DBGEVB also offers a comprehensive protection features such as open loop protection, soft-start Function, input current management, peak current limit and output short circuit protection. In addition to that, the onboard voltage measurement and current sensing functions can be used to monitor the system performance. The board also features an on-board temperature sensing monitor which can be used to prevent internal system malfunctions.

The working principle of the NCV8851DBGEVB evaluation board is based on the SMPS controller IC from ON semiconductor. The chip is equipped with a range of features such as load and line regulation, soft-start, and fast transient response. The chip is connected to a voltage loop feedback circuit to stabilize the output voltage. It is also connected to a current sense circuit which is used to monitor the current and adjust the duty cycle of the PWM to maintain a constant output current. The main features of the NCV8851DBGEVB are the voltage and current regulation circuit, soft-start and peak current limit (OCP) protection.

The NCV8851DBGEVB is an ideal evaluation board for designers who want to have an understanding of the features and operation of the NCV8851 SMPS controller IC. It is an economically priced tool for engineers who want to explore the different features of the chip in order retrieve optimized performance and high efficiency in their designed power converter systems.

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