Delta Electronics Series DNM04 manual Thermal Considerations, Thermal Testing Setup

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THERMAL CONSIDERATIONS

Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. Convection cooling is usually the dominant mode of heat transfer.

Hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel.

Thermal Testing Setup

Delta’s DC/DC power modules are characterized in heated vertical wind tunnels that simulate the thermal environments encountered in most electronics equipment. This type of equipment commonly uses vertically mounted circuit cards in cabinet racks in which the power modules are mounted.

The following figure shows the wind tunnel characterization setup. The power module is mounted on a test PWB and is vertically positioned within the wind tunnel. The height of this fan duct is constantly kept at 25.4mm (1’’).

Thermal Derating

Heat can be removed by increasing airflow over the module. To enhance system reliability, the power module should always be operated below the maximum operating temperature. If the temperature exceeds the maximum module temperature, reliability of the unit may be affected.

FACING PWB

AIR VELOCITY

AND AMBIENT

TEMPERATURE

MEASURED BELOW

THE MODULE

PWB

MODULE

50.8 (2.0”)

AIR FLOW

12.7 (0.5”) 25.4 (1.0”)

Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)

Figure 43: Wind tunnel test setup

DS_DNM04SIP10_07162008D

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Contents Delphi DNM, Non-Isolated Point of Load Parameter Technical SpecificationsConverter efficiency vs. output current 3.3V out Electrical Characteristics CurvesOutput ripple & noise at 3.3Vin, 2.5V/10A out Turn on delay time at 5Vin, 3.3V/10A out Electrical Characteristics Curves Output short circuit current 5Vin, 0.75Vout Design Considerations Test ConfigurationsInput Source Impedance Safety Considerations Features DescriptionsDesign Considerations CON Remote On/OffOver-Temperature Protection Features Descriptions CONRemote Sense Output Voltage ProgrammingVoltage Margining Feature Descriptions CONVoltage Tracking Ratio-Metric Sequential Start-upThermal Considerations Thermal Testing SetupVo=2.5VEither Orientation Thermal CurvesMechanical Drawing Model List Part Numbering System

Series DNM04 specifications

Delta Electronics’ Series DNM04 represents a cutting-edge solution in the realm of industrial automation and control systems. Designed to cater to a wide range of applications, the DNM04 series stands out for its versatility and reliability, making it an ideal choice for various sectors including manufacturing, energy, and transportation.

One of the key features of the DNM04 is its compact design, which allows for space-saving installation in control panels or equipment cabinets. Despite its small form factor, it does not compromise on performance. The series is equipped with advanced processing capabilities, ensuring swift and efficient execution of commands and processes.

The DNM04 series utilizes state-of-the-art communication technologies, enabling seamless integration with various industrial protocols such as Modbus, Ethernet/IP, and Profibus. This flexibility facilitates smooth data exchange between devices, enhancing overall system efficiency. Additionally, the DNM04 supports remote monitoring and control, allowing users to manage their systems from virtually anywhere, thereby streamlining operations and improving productivity.

Another significant characteristic of the DNM04 is its robust safety features. With compliance to international safety standards, the series provides options for redundancy and fault tolerance, minimizing downtime and ensuring continuous operation. This is particularly important in critical applications where system failure can lead to significant losses.

Moreover, the DNM04 series is characterized by its user-friendly interface, which simplifies configuration and troubleshooting processes. The intuitive design allows users to easily program and adjust settings, reducing the learning curve and increasing operational efficiency.

Furthermore, the DNM04 is built with durability in mind. Its rugged construction can withstand harsh environmental conditions, making it suitable for outdoor applications and demanding industrial settings. This longevity reduces the need for frequent replacements, thus lowering total cost of ownership.

In summary, Delta Electronics’ DNM04 series combines compact design, advanced communication capabilities, robust safety features, user-friendly interface, and durable construction, making it a formidable choice for industrial automation. This series not only meets the demands of today’s industries but also anticipates future needs, positioning it as a reliable partner in the advancement of technology and automation. Whether for monitoring, control, or data exchange, the DNM04 series stands out as a remarkable solution in the industrial electronics landscape.
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