BMP DC/DC converter is a versatile power management solution designed for efficient voltage conversion in a variety of electronic applications. Built with advanced technology, it ensures reliable performance and high efficiency, making it ideal for both industrial and consumer electronics. Its compact design and wide input voltage range allow seamless integration into space-constrained environments while maintaining exceptional power output stability. Here’s a brief introduction to features of DC/DC converters:
- Voltage Adaptation:
DC/DC converters are employed to adapt the incoming power supply voltage to the specific voltage needed by the end application. This allows devices with diverse power needs to be powered from a common power source, such as a battery or Power over Ethernet (PoE) system.
- Efficiency and Regulation:
DC/DC converters are designed to efficiently transform one DC voltage level to another while regulating the output voltage. This is essential for maintaining stable power delivery, especially in scenarios where the input voltage may vary, such as in battery-powered applications or fluctuating power sources.
- Isolation for Safety:
Many DC/DC converters provide electrical isolation between the input and output circuits. This isolation is crucial for safety, as it helps prevent issues like ground loops and electrical interference. It protects both the end application circuitry and the power source from potential damage and enhances overall system reliability.
- Protection and Reliability:
DC/DC converters often include protection features such as overvoltage and overcurrent protection, contributing to the reliability and longevity of the system. These features help safeguard the device against potential issues in the power supply.
In summary, the use of DC/DC converters is essential for optimizing power supply compatibility, ensuring efficient voltage conversion, and enhancing safety and reliability.
Below is some key points in application of DC/DC converter:
Thermal consideration
A DC-DC converter without a heat spreader is well-suited for lower power consumption. However, in scenarios where the power requirements are higher, a converter with a heat spreader, often accompanied by an additional heat sink, may be necessary. In both instances, it is imperative to carefully account for thermal derating to guarantee that the converter operates within acceptable limits, thereby optimizing its efficiency and ensuring long-term reliability.
Input and output capacitor
The product datasheet shall state that value of input and output capacitor. Capacitor is connected at the input to ensure adequate voltage surge suppression and protection.
Maintain output ripple at desired level by selecting capacitors with a low ESR (equivalent series resistance). Also make sure that the capacitance is not exceeding the specified max. capacitive load value stated in the datasheet.
Remote sense
When remote sense is not used, connect the +Sense to + Vo and -Sense to 0V
Note: 1. Lines must be kept as short as possible.
- If the sense function is not used for remote regulation the user must connect the +Sense to + Vo and
-Sense to 0V at the DC-DC converter pins and will compensate for voltage drop across pins only.
- The connections between Sense lines and their respective power lines must be kept as short as possible, otherwise they may be picking up noise, interference and/or causing unstable operation of the power module.
Using remote sense line
Note: 1. In cables and discrete wiring applications, twisted pair or other techniques should be implemented.
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Using remote sense with long wires may cause unstable output, please contact technical support if long wires must be used.
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PCB-tracks or cables/wires for Remote Sense must be kept as short as possible. Twisted pair or shielded wires are suggested for remote compensation and must be kept as short as possible.
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Use adequate cross section for PCB-track layout and/or cables to connect the power supply module to the load in order to keep the voltage drop the stated value in datasheet to make sure the power supply’s output voltage remains within the specified range.
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Note that large wire impedance may cause oscillation of the output voltage and/or increased ripple. Consult technical support for further advice of sense operation.
Trim up / trim down
Some models feature output voltage adjustment. It involves connecting a resistor to positive or negative for trimming up / down. The calculation on the resistance value may be different on various model. Refer to the datasheet of the model for the calculation.