REC5-4812DRW/H4/A/SMD/CTRL-R

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DC-DC converters are the essential building blocks for constructing high performance voltage regulators and power supplies in consumer, automotive, and industrial applications. Specifically, REC5-4812DRW/H4/A/SMD/CTRL-R is designed to facilitate applications for embedded systems, battery backed systems, and automotive or telecom applications. It is suitable for both isolated and non-isolated DC-DC converters. This article will discuss the application field and working principle of REC5-4812DRW/H4/A/SMD/CTRL-R DC-DC converter.

The REC5-4812DRW/H4/A/SMD/CTRL-R DC-DC converter is capable of operating with input voltages ranging from 4.5V to 32V, making it ideal for embedded systems where supply voltage is limited and the input current is low. The converter has a maximum output power of 9W, a rated efficiency of 70%, and a wide input voltage range, making it a reliable source for multiple applications. It also supports soft-start and short protection functions, as well as the ability to set output voltage trim and current limiting, allowing it to be integrated easily into different systems.

In addition, the REC5-4812DRW/H4/A/SMD/CTRL-R utilizes a synchronous buck topology which effectively provides high efficiency, thus reducing the system power consumption. This topology is also well-suited to be used in different applications, such as automotive, telecom, and industrial. Furthermore, it utilizes primary-side control, which simplifies the circuit and makes the system more reliable by eliminating the need for an optocoupler and external control circuits.

The REC5-4812DRW/H4/A/SMD/CTRL-R DC-DC converter has a working principle which involves the conversion of the input voltage into a fixed output voltage at varying frequencies. The circuit contains a control circuit which monitors the input voltage, and adjusts the switching frequency of the main power switches to achieve a constant output voltage. The main switches in the circuit are driven by the control circuit, and when they are turned ON and OFF, they cause the input voltage to switch, producing pulses of current. The output voltage is then regulated using the feedback circuit.

To ensure a smooth and accurate start up, the REC5-4812DRW/H4/A/SMD/CTRL-R DC-DC converter also features a soft-start function. The control circuit monitors the input voltage during soft-start and gradually increases the on-time of the power switches to a fixed ratio of the input voltage. This prevents the output voltage from going beyond the rated voltage. At the same time, the power switches can be turned OFF to reduce the input current and protect the power supply.

The REC5-4812DRW/H4/A/SMD/CTRL-R DC-DC converter is suitable for applications such as automotive, telecom, and industrial. It has features such as wide input voltage range, maximum output power of 9W, rated efficiency of 70%, soft-start and short protection functions, and the ability to set output voltage trim and current limiting. Furthermore, it utilizes a synchronous buck topology which allows for a high efficiency performance and its primary-side control eliminates the need for an optocoupler and external control circuits. With these features, this DC-DC converter can be used in various systems for reliable and efficient power conversion.

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