Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

DC DC Converters

DC DC converters are power-supply components that convert one DC voltage from either a low- or a high-voltage to another DC voltage. They are used in many applications, including industrial, automotive, and home applications, as well as in emergency power systems. The most popular type of DC DC converter is the REC5-1209SRW/H/B/SMD model.

Application Field and Working Principle

The REC5-1209SRW/H/B/SMD is a widely used DC DC converter for a variety of applications. It can convert a 12V regulated DC voltage down to a desired output voltage in the range of 0.9V to12V with a tolerance of ±0.5V. The current rating for the REC5-1209SRW/H/B/SMD is 0.5A, 1A, 2A, 3A, 6A, 8A, 10A, and 15A. The power rating is typically 14W, 21W, 27W, 33W, 36W, 54W, 68W, and 90W. It is also available in a variety of case sizes and levels of insulation.

The REC5-1209SRW/H/B/SMD is a switching type DC DC converter. It switches suddenly between a high-side and a low-side MOSFETs, thus regulating the output voltage. The switching frequency is typically between 500kHz and 3MHz, depending on the model. The switching action is controlled with a feedback/error amplifier. The device is typically controlled by a voltage-mode controller, which uses an external resistor divider to set the output voltage.

Advantages

The REC5-1209SRW/H/B/SMD has many advantages over other types of DC DC converters. It is light, small sized, and efficient. It also has a high level of insulation. The low standby power and low input current result in low heat dissipation and long product life. In addition, it has a wide input voltage, operating temperature, and circuit topology range.

Disadvantage

The main disadvantage of the REC5-1209SRW/H/B/SMD is its relatively high EMI levels, which is a result of the switching action. Manufacturers should take special care to reduce these levels. In addition, proper isolation between the input and output is necessary, especially for high-voltage applications. The device is also sensitive to short-circuits, voltage transients, and over-voltage due to its voltage output regulation mechanism.

The specific data is subject to PDF, and the above content is for reference