VICOR Maxi Family 375V Input DC-DC Converter Module Datasheet

Category: Electronics, Other Semiconductors, Vicor Corporation

Overview of VICOR Maxi Family 375V Input DC-DC Converter Module

The VICOR Maxi Family DC-DC converter modules are designed to operate with an input range of 250VDC to 425VDC, providing an isolated output and supporting an input surge withstand of 500V for 100ms. With a focus on high efficiency and high power density, these modules offer programmable outputs ranging from 10% to 110% of the nominal output voltage.

Applications

They are suitable for a wide range of applications, including off-line systems with PFC front ends, industrial and process control, distributed power systems, medical equipment, ATE, communications, defense, and aerospace.

Features & Benefits

The converters feature efficiency of up to 89%, a power density of up to 120W per cubic inch, and provide a low-noise solution using ZCS/ZVS architecture. They are also RoHS compliant with certain configurations and are capable of N+M fault tolerance. With regulation of +0.25% from no load to full load, and an absolute maximum operating temperature of 100°C, these converters are ideal for harsh environments.

Electrical Characteristics

The modules’ operating input voltage ranges from 250VDC to 425VDC, with various protections for under and over-voltage conditions. The output voltage set point has typical line regulation of +0.02% of the nominal output voltage, with temperature and power sharing accuracies specified within tight tolerances.

Mechanical Specifications

The compact size is listed as 4.6 x 2.2 x 0.5 inches, with a height above board at 0.43 inches. High-frequency ZCS/ZVS switching ensures a blend of high power density, reduced noise, and high efficiency.

Part Numbering and Product Grade

Part numbers indicate product type, output voltage, product grade, temperatures, output power grade, pin style, finish, and baseplate options to cater to different operational and environmental requirements. The document provides clear guidance on maximum permissible load current and additional output-related application information.

Thermal Management

Thermal resistance and capacity details are provided for various conditions, including with flat greased surface or thermal pad, and at different airflow rates. This ensures the modules can be effectively cooled, maintaining performance and reliability.

Compliance and Safety

The conversions modules maintain a variety of safety and compliance standards, with isolation voltages listed from IN to OUT, IN to base, and OUT to base. They operate within a broad operating and storage temperature range, and their mounting torque and pin soldering temperature are also specified to facilitate proper mounting and soldering during assembly.