BCD48BF120T300A00

Series:	VI Chip® BCM®
Part Status:	Active
Main Purpose:	DC/DC, Step Down
Outputs and Type:	1, Isolated
Power - Output:	300W
Voltage - Output:	12V
Current - Output:	30A
Voltage - Input:	38 V ~ 55 V
Regulator Topology:	Buck
Frequency - Switching:	1.95MHz
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	BCM48Bx120y300A00

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Evaluation Boards - DC/DC & AC/DC (Off-Line) SMPS

BCD48BF120T300A00 is an evaluation board for DC/DC and AC/DC (off-line) SMPS systems that provide flexible and efficient solutions for AC/DC modules from 10W to 250W. It is designed to optimize the control of a continuous current-mode (CCM) flyback converter for improved efficiency and applicable to a wide range of operating conditions.

Application Field

BCD48BF120T300A00 evaluation board was developed for professional designers working with high-power DC/DC or AC/DC (off-line) SMPS that need to evaluate their design or test different configurations under different conditions. It is suitable for high-efficiency evaluation of transformers in a wide range of applications, including LED lighting systems, LCD displays, house appliances, PCs and other industrial and personal electronic tools.

Performance

BCD48BF120T300A00 allows for excellent efficiency and power factors, which makes it suitable for a wide range of applications. For example, in LED lighting systems, it allows for up to 85% efficiency and 95% power factor in the operating range of 220 to 265Vac. In addition, the evaluation board is capable of providing up to 123.5W out of 150W input power for a given operating conditions of 80Vcc and 12Vcc output and 20Vcc voltage gain. This improves the efficiency of the system and helps to reduce wastage of energy.

Safety

The evaluation board has integrated safety features such as over current shutdown circuitry which helps to prevent any unexpected incidents or system damages when operating at higher power levels. The board also has built-in overvoltage and under voltage protection as well as programmable protection limit, enabling it to achieve high levels of safety.

Working Principle

BCD48BF120T300A00 evaluation board works on the principle of continuous current-mode (CCM) flyback converter. It uses a synchronous rectifier and a high voltage capacitor to store energy. When the power is on, the PWM controller generates a square-wave signal which is sent to the switching transistor to control the input voltage and current. The output voltage is then regulated by the error amplifier which compensates for the component changes in the feedback loop.Furthermore, the evaluation board comes with a built-in soft-start mechanism which helps to limit inrush current and also reduce the power dissipation. This provides smooth control of the output voltage and helps to prevent any damage to the system.

Conclusion

The BCD48BF120T300A00 evaluation board is designed to provide efficient solutions for DC/DC and AC/DC (off-line) SMPS. It offers excellerent efficiency in LED lighting systems, LCD displays, house appliances, PCs and more. It also has build-in safety feature and a soft-start mechanism to protect the system and reduce power dissipation. It works on the principle of continuous current-mode (CCM) flyback converter and is suitable for a wide range of applications.

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