CUT75522/B

AC DC converters are widely used in consumer electronics, industrial and medical applications for high-efficiency power conversions. The CUT75522/B is a member of the high-frequency Boost converter family, and has been used in many different fields due to its high power efficiency and fan-less design. This paper aims to explain the application fields and the working principle of CUT75522/B, as well as its advantages and drawbacks.

Generally speaking, CUT75522/B has many application fields with its high power efficiency and fan-less design. For example, it can be used in applications such as mobile phones, smart TV, medical equipment, office appliances, industrial control systems, automotive, aerospace, surveillance systems, etc. Especially, its low noise immunity and fast transient response make it an ideal choice for military and aerospace applications. It is even used to power some of the newest high-efficiency LED lighting products.

CUT75522/B uses a two-stage architecture to boost the input voltage. In the first stage, an energy transfer inductor stores energy in the form of a magnetic field. In the second stage, this energy is transferred to the output capacitor through a low RDS(on) DMOS MOSFET. This two-stage topology eliminates losses as the power is transferred efficiently from input to output. Moreover, the CUT75522/B incorporates several protection features, such as short-circuit protection, thermal shut-down function, and overvoltage protection.

The main components of CUT75522/B include a high efficient Li-ion battery charger, low RDS(on) DMOS MOSFET, inductor, capacitor, and MCU. When the input voltage is higher than the output voltage, the battery charger and DMOS MOSFET switch in to regulate the output current. The inductor stores energy in the form of a magnetic field and the capacitor is used to maintain the output voltage.

When the demand for output power rises, the MCU will increase the switching frequency of the DMOS MOSFETs. This way, the device provides fast transient response and higher efficiency. The MCU also provides protection features such as thermal shut-down and short-circuit protection.

The CUT75522/B has numerous advantages, including high power efficiency, fast transient response, and small size. It is fan-less and provides low noise immunity. Furthermore, it incorporates multiple protection features, such as overvoltage protection, thermal shut-down, short-circuit protection.

The main disadvantage of CUT75522/B is its limited output current as the DMOS MOSFET used in the device is limited in its output current capability. Furthermore, the device is prone to losses in power conversion, which may lead to heat generation issues. Therefore, the device may require external cooling, such as a fan, for better efficiency and reliability.

In conclusion, the CUT75522/B is a high-efficiency AC DC converter used in many different applications. It has a two-stage architecture for efficient power transfers and provides protection features. It has many advantages including high power efficiency, fast transient response, and small size. However, it has its own drawbacks which need to be mitigated to make it a perfect device for power conversions.

CUT75522/TA	TDK-Lambda A...	66.53 $	55	AC/DC CONVERTER 5V +/-12V...
CUT75522	TDK-Lambda A...	60.98 $	39	AC/DC CONVERTER 5V +/-12V...
CUT755FF/A	TDK-Lambda A...	66.53 $	4	AC/DC CONVERTER 5V +/-15V...
CUT75522/T	TDK-Lambda A...	60.98 $	1000	AC/DC CONVERTER 5V +/-12V...
CUT755FF/T	TDK-Lambda A...	60.98 $	1000	AC/DC CONVERTER 5V +/-15V...
CUT75522/TB	TDK-Lambda A...	62.37 $	1000	AC/DC CONVERTER 5V +/-12V...
CUT755FF/B	TDK-Lambda A...	62.37 $	1000	AC/DC CONVERTER 5V +/-15V...
CUT755FF/TB	TDK-Lambda A...	62.37 $	1000	AC/DC CONVERTER 5V +/-15V...
CUT75522/B	TDK-Lambda A...	62.37 $	1000	AC/DC CONVERTER 5V +/-12V...
CUT755FF	TDK-Lambda A...	60.98 $	17	AC/DC CONVERTER 5V +/-15V...
CUT755FF/TA	TDK-Lambda A...	66.53 $	14	AC/DC CONVERTER 5V +/-15V...
CUT75522/A	TDK-Lambda A...	66.53 $	1000	AC/DC CONVERTER 5V +/-12V...