ICE3AS02G

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The ICE3AS02G is a fan-cooled, low-power off-line switching converter that utilises advanced current-mode controller, oscillator, and power MOSFET technologies. It is particularly well suited for universal input applications like110V AC/220V AC mains-powered systems for home appliances, industrial and office applications, telecom and telecomms, household feeders, and other applications that do not require high power. The ICE3AS02G is available in two versions, with and without overvoltage protection (OVP) circuitry. The OVP automatically trips and holds up to withstand an isolated overvoltage condition.

The ICE3AS02G is well suited for cost-sensitive applications such as power supplies, DC-DC converters, motor drives, and other off-line switching applications , LED lighting, and various other applications where high reliability and improved efficiency are required. Its low power rating makes it suitable for low-power applications where cost is a priority. It utilizes Pulse Width Modulation (PWM) or quasi-PWM topologies for its high-efficiency switch-mode power supplies.

The ICE3AS02G implements current-mode control techniques to ensure superior performance. This feature provides better control of output voltage, improved line/load regulation, and enhanced light/heavy load transient characteristics. The ICE3AS02G also employs an active current-balancing loop to ensure a linear response over a wide input voltage range. The device operates from a wide 85-520V AC mains input range and can deliver 200-400mA output current without any additional components, making it ideal for high efficiency and low power designs.

The ICE3AS02G application field is embedded in cost-sensitive AC/DC converter, offline switcher applications. It is used in power supplies, DC-DC converters, motor drives, industrial and office applications, telecom and telecomms, household feeders, LED lighting, and various other applications that do not require high power. With features such as overvoltage protection, active current-balancing loop, the ICE3AS02G can easily meet the requirements of these and other applications.

The working principle of the ICE3AS02G is to utilize Pulse Width Modulation (PWM) or quasi-PWM topologies for its high-efficiency switch-mode power supplies to generate an output voltage. The ICE3AS02G is an isolated, off-line switcher that uses an AC supply from the rectified AC line voltage. The output voltage is regulated by monitoring the output voltage and adjusting the duty cycle of the control signals. The core of the command signals is a current-mode control system that provides excellent load and line regulation. The low standby and no-load power can be maintained by the oscillator and MOSFETs operating at high frequency.

In conclusion, the ICE3AS02G has been specifically designed for the AC/DC converter, offline switcher applications. It combines design-friendly features, robustness, and flexibility to give a product that exceeds the performance requirements demanded from AC/DC converter, offline switcher applications. The current-mode controller, oscillator, and power MOSFET technologies ensure a high-efficiency and low-power performance, while the overvoltage protection provides increased reliability and safety in the application.

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