KA5H0280RTU

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KA5H0280RTU Application Field and Working Principle

KA5H0280RTU is a high-efficiency dual-channel AC/DC converter, designed and manufactured by KA-Lai Electronics, a leading manufacturer and supplier of power management integrated circuits (PMICs) and related components. KA5H0280RTU is part of KA-Lai\'s PMIC - AC DC Converters, Offline Switchers family, which offers a wide range of power supply solutions for industrial, commercial, and consumer applications.

The KA5H0280RTU is designed to be highly efficient, with an efficiency rating of up to 93%, and is capable of powering a wide range of applications, including computers, data centers, telecom equipment, and industrial automation systems. It has a wide operating temperature range of -40 to +85°C and is suitable for applications in harsh environments. The KA5H0280RTU delivers up to 60W of output power and features a wide input voltage range of 85-264VAC or 180-550VDC.

The AC/DC dual-channel KA5H0280RTU is a constant voltage/constant current source that can be used to provide both a regulated voltage and current output. This product features active Power Factor Correction (PFC) and is designed to meet the stringent requirements of EN61000-3-2. The KA5H0280RTU also offers protection against over-voltage, over-current, over-temperature, and short-circuit conditions, ensuring safe and reliable operation for your application.

The KA5H0280RTU is designed for easy installation and use and comes with a comprehensive set of features including soft-start, EMI filter, remote sense, and programmable frequency. It also supports dual-output configuration, allowing for one output to be used while the other is standby, saving energy and reducing component costs. The KA5H0280RTU can be used as a single-channel AC/DC converter or as a dual-channel AC/DC Converter, depending on application requirements.

The KA5H0280RTU utilizes a half-bridge topology to generate a regulated output voltage. This half-bridge topology is a type of switching power supply, which means that it uses transistors to switch current on and off in order to control the output voltage. The AC input voltage is rectified by a bridge rectifier, which converts AC power to DC power, and then filtered by an EMI filter. The DC power is then fed to the primary side of the half-bridge, which is formed by two MOSFETs connected in series. The pulse width modulation (PWM) controller drives the two MOSFETs to control the output voltage by changing the duration or duty cycle of the switching signal.

The KA5H0280RTU offers an output voltage tolerance of ±3% and a ripple and noise of <35mVpp, ensuring clean and stabilized power output. The output voltage is also adjustable, allowing for easy and quick voltage regulation during application changes. The KA5H0280RTU also supports input current sharing, resulting in lower cost and higher power efficiency.

Ka5H0280RTU is a reliable, cost-effective solution for a variety of industrial, commercial, and consumer applications. Its compact design and wide range of features make it an ideal choice for applications that require reliable, high-efficiency AC/DC power conversion. It is also easily configurable and can be used in a number of different applications, making it a versatile and cost-effective solution for any power supply application.

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