R0.5D-1215-R

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DC DC Converters

A DC-DC Converter is a device that converts direct current (DC) from one voltage level to another. It is an electronic circuit that uses electric power from a source to create a constant DC output voltage. Commonly used in large quantities in battery-powered devices, such as computers, cell phones, and gadgets, DC-DC converters are also used to make electricity usable in numerous diverse industrial, commercial, and residential applications.

R0.5D-1215-R Application Field and Working Principle

R0.5D-1215-R is a series of ultra-wide input, high isolation, non-isolated, step-up/down, DC-DC converters. It is the most widely used model in the R0.5D series bt Worldepot. It is suitable for telecommunication, renewable energy, industrial automation, medical, automotive, computer applications.

The product’s features include a wide 4:1 input voltage range, an effective working temperature range up to -40°C to 125°C, high efficiency up to 94%, remote on/off control, safety to international standards, full load temperature coefficient 0.01%/°C, 60-400kHz frequency, fast response, and various connectors (SMS, 1215-R, TDFN, etc.).

The working principle of the R0.5D-1215-R is based on a Buck-Boost topology. The Buck circuit operates, when the input voltage is lower than the output voltage, to step down the input voltage, while the Boost circuit is used to step up, when the input voltage is higher than the output voltage. This process works through a coupled inductor of the Buck part and a coupled capacitor of the Boost part. In addition to that, a few more components are used in switching control, helping to maintain the optimum output and protection of the circuit.

The selected output voltage and the working state of the Buck-Boost circuit, are regulated by an external voltage control signal. With an internal IC switch, the power supply bypasses the power connected to the load when the control voltage is over a certain level.

Due to the features of a Buck-Boost Converter topology, the R0.5D-1215-R is very popular. It has an excellent trans-conductance efficiency that makes it the perfect choice for a wide range of power electronic applications. This type of device can also be optimized to maintain the efficiency and the output power range for a particular application.

In addition, R0.5D-1215-R offers small thermal compensation and excellent ripple noise performance, making it ideal for any device requiring high isolation voltage. Other advantages include simple start-up and excellent overload characteristics.

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