DCM3714BD2K31E0C05

Current - Output (Max):	17.86A
Size / Dimension:	3.83" L x 1.40" W x 0.37" H (97.3mm x 35.5mm x 9.3mm)
Package / Case:	9-DIP Module
Mounting Type:	Through Hole
Efficiency:	93.6%
Operating Temperature:	-20°C ~ 125°C
Features:	Remote On/Off, OCP, OTP, OVP, SCP, UVLO
Applications:	ITE (Commercial)
Voltage - Isolation:	2.121kV
Power (Watts):	500W
Series:	VI Chip® DCM®
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	28V
Voltage - Input (Max):	420V
Voltage - Input (Min):	160V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Box

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Introduction

DC DC converters are devices that convert direct current (DC) electrical power from one voltage level to another. The DCM3714BD2K31E0C05 is an Industrial Power Buck converter, which is specifically designed to address the needs of variable frequency drives, electric vehicles, as well as various other industrial applications. This converter offers high efficiency and increased power density, along with easy customization and scalability. In this article, we continue to discuss the application field and working principle of the DCM3714BD2K31E0C05.  

Application Field

The DCM3714BD2K31E0C05 is a high current buck converter that can be used in a wide variety of applications due to its flexible features and adjustable parameters. It is an ideal solution for DC-DC voltage conversion and is designed with an output stage circuitry that allows it to convert up to ~2kW of output power. It can be used to power a range of applications from industrial equipment, automotive to consumer electronics. It is also perfect for variable frequency drives and electric vehicles because of its high efficiency and wide input voltage range of 18 to 60V. It also features high current circuit protection, short-circuit protection, and comprehensive diagnostics monitoring. This versatile power conversion capability makes it suitable for providing precise control in high-power system applications.

Electrical Design

The DCM3714BD2K31E0C05 device consists of an advanced power stage and a power conversion controller. The power stage includes a high-current switching circuit as well as an MOSFET integrated circuit (IC). The IC incorporates a high-efficiency synchronous power topology which enables the device to achieve extremely high switching frequencies up to 1MHz. The power conversion controller includes a low-dropout voltage regulator (LDO) as well as a pulse-width modulation (PWM) controller. The PWM controller regulates the output voltage by comparing an internal reference voltage with the feedback voltage. Additionally, the controller includes several safety features like over-voltage protection as well as over-temperature protection.

Working Principle

The DCM3714BD2K31E0C05 is based on a buck topology, which means it is designed to change an input voltage into an output voltage which is smaller than the input voltage. This is done by turning a switch on and off at regular intervals. When the switch is turned on, a current is drawn from the input source in order to charge an inductor. This periodically increases the voltage across the inductor, which stores the energy as a magnetic field. When the switch is briefly turned off, the stored energy is released, and this voltage is connected to the output. The duty cycle of the switch determines the output voltage. The inductor and the capacitor form a low-pass filter which ensures that the output voltage is regulated.

Conclusion

The DCM3714BD2K31E0C05 is an Industrial Power Buck converter, designed to provide high efficiency and increased power density for a variety of applications. It is based on a buck topology and utilizes a power stage consisting of a high-current switching circuit and an MOSFET IC. The device also includes a pulse-width modulation controller and several safety features. This converter is perfect for applications requiring precise voltage control, such as variable frequency drives or electric vehicles.

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