The DCM Low Profile Series features space-saving, high-efficiency fixed-ratio bus converters with galvanic isolation designed for applications with tight height restrictions. These modules utilize Vicor's LVM (Low Vertical Mount) packaging technology to achieve up to 95.7% efficiency while maintaining a low profile for space-constrained applications.
Overview
The DCM Low Profile Series represents Vicor's solution for applications requiring isolated DC-DC conversion in a compact form factor. These devices are specifically optimized for applications where vertical space is limited but high efficiency is still required.
The fixed-ratio transformation (typically 2:1 or 1:1) makes them ideal for applications requiring isolated voltage transformation in constrained spaces. The isolated design provides safety isolation and noise immunity while enabling bidirectional power flow.
Key Features
Low Profile Design
LVM packaging technology provides a compact, low-profile solution ideal for space-constrained applications with height restrictions.
High Efficiency
Up to 95.7% efficiency achieved through ZVS technology reduces power losses and thermal management requirements even in compact form factor.
Galvanic Isolation
2250Vdc isolation barrier provides safety isolation and prevents ground loops in distributed power systems.
Fixed Ratio Conversion
Achieves 2:1, 1:1, or other fixed ratios depending on model, with tight voltage tracking between input and output in a compact package.
Technical Specifications
| Model | Power Range | Efficiency | Input Voltage | Turns Ratio | Isolation | Package |
|---|---|---|---|---|---|---|
| DCM3E51L100A015 | 300W | 95.2% | 36-75V | 2:1 | 2250Vdc | LVM |
| DCM3E51L100A030 | 600W | 95.5% | 36-75V | 2:1 | 2250Vdc | LVM |
| DCM4E51L100A046 | 1000W | 95.7% | 36-75V | 2:1 | 2250Vdc | LVM |
| DCM4E31L100A046 | 1000W | 95.3% | 24-55V | 2:1 | 2250Vdc | LVM |
| DCM3E31L100A023 | 500W | 95.3% | 36-75V | 2:1 | 2250Vdc | LVM |
Applications
DCM Low Profile modules are optimized for applications requiring isolated DC-DC conversion without regulation in compact form factors. Common applications include:
Aviation Systems
Space-constrained power conversion in aircraft and avionics systems with safety isolation requirements.
Medical Equipment
Compact power supplies for medical devices with safety isolation and low-profile requirements.
Automotive
Low-profile power conversion in automotive applications with space constraints and isolation requirements.
Design Considerations
Thermal Management
Though DCM Low Profile modules have excellent efficiency, thermal management remains important in enclosed spaces. Use appropriate thermal interface materials and consider airflow in system design. Pay attention to input and output capacitor placement to minimize conducted noise and ensure stable operation.
Layout Recommendations
For optimal performance in space-constrained applications, ensure adequate copper for heat spreading on the PCB. DCM Low Profile modules benefit from the low switching losses due to ZVS operation, which reduces thermal management challenges despite the compact form factor.
System Integration
DCM Low Profile modules excel in applications where you need a simple, efficient DC-DC conversion without regulation and with limited vertical space. They are ideal for bus conversion applications where downstream converters handle regulation.
Frequently Asked Questions
What is the LVM package and how does it differ from VIA?
LVM (Low Vertical Mount) is a packaging technology designed for applications with height restrictions. It provides the same high efficiency as VIA packages but in a lower profile form factor.
What are the thermal management considerations for DCM Low Profile modules?
DCM Low Profile modules generate less heat due to high efficiency, but limited space can affect heat dissipation. Ensure adequate PCB copper and consider system airflow.
Can DCM Low Profile modules be used in harsh environments?
Yes, DCM Low Profile modules are designed to meet industrial standards and can be used in various environmental conditions, though specific requirements should be verified.
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