V28A28C200B

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DC DC Converters

DC-DC converters are essential components in modern engineering solutions, performing a variety of tasks from regulating voltage to providing isolation from power sources. The V28A28C200B is a high-efficiency, tight-regulation synchronous DC-DC converter module, designed for a wide range of industrial, commercial, transportation, and medical applications.

Compact Size and High Efficiency
The V28A28C200B is a compact, lightweight, highly efficient DC-DC converters that are designed to minimize power dissipation by utilizing synchronous rectification techniques. It has a high power density of 1 Watt per cubic inch with an efficiency of up to 95 percent when operating at full rated load. This makes it ideal for applications in confined environments with limited space. Additionally, it operates with minimal noise and can be used in noise-sensitive applications such as medical equipment, transportation, and industrial control systems.

Isolation, Protection, and Regulation
The V28A28C200B offers galvanic isolation between primary and secondary windings, providing electrical isolation up to 1000V. This helps protect sensitive equipment from electrical interference or power spikes. Additionally, it offers built-in protection against short circuit and overvoltage conditions. It also has a wide input voltage range of 3.3V to 36V, and its output voltage is adjustable with a range of 1.8V to 5.5V. The converter also has a tight output voltage regulation of ±1 percent.

Applications and Working Principle
The V28A28C200B is suitable for a wide range of applications such as automotive, medical equipment, and industrial applications. It is particularly well-suited for applications that require tight voltage regulation and low power dissipation. In terms of its working principle, the DC-DC converter utilizes an internal power switch and power inductor to step down or step up current, allowing it to convert a high-voltage input to a low-voltage output.

When energized, the switching transistor switches on and draws current from the primary side of the converter, causing a buildup of energy in the magnetic field of the transformer’s primary winding. When the primary winding reaches its saturation point, the switch in the power transistor turns off, causing the magnetic field to collapse and release the stored energy to the secondary winding of the transformer.

The secondary side of the converter is then energized, which activates a secondary rectifier diode and shunts excess energy as heat. The remaining current is then passed through the filter capacitor and routed to the output terminals, providing a regulated low-voltage DC output. The built-in feedback circuit monitors the output voltage and adjusts the duty cycle of the switching transistor to maintain a constant DC voltage, thus providing efficient and reliable conversion of the input voltage.

The V28A28C200B offers excellent performance for a wide range of applications due to its compact size, high efficiency, galvanic isolation, protection features, and wide input voltage range. It is a highly versatile, high-efficiency DC-DC converter module for a variety of applications in the industrial, commercial, transportation, and medical fields.

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