ICE5QR0680AZXKLA1

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ICE5QR0680AZXKLA1 is a monolithic Integrated Circuit (IC) designed for the field of power management, especially the offline switching power supply applications. This IC enables efficient and compact AC/DC switching power supplies and helps to reduce system power costs. It provides two separate output channels, one AC/DC synchronous rectification channel and one isolated flyback DC/DC conversion channel, which allows it to be used for applications such as LED lighting, ballast lighting, digital audio amplifiers, AC/DC adapters, and general isolated secondary power supplies.

The ICE5QR0680AZXKLA1 offers high efficiency power conversion and low electromagnetic interference (EMI), making it ideal for applications requiring both high efficiency and low noise. It has advanced control features such as Frequency jittering, cycle-by-cycle current limit and Active current sharing, which ensure a stable and safe operation. Additionally, the device comes with a variety of external protections, such as hysteretic over temperature protection, soft start/stop, and over current protection (OCP) for both channels.

The main features of the ICE5QR0680AZXKLA1 AC/DC conversion channel include its high efficiency, up to 98.5%; its low stand by power of 200mW; its wide input voltage range of 85 to 265Vac; and its low output ripple. The flyback DC/DC conversion channel offers up to 95.3% efficiency, a wide output voltage range of up to 40V, and a soft start/stop function.

The working principle of the ICE5QR0680AZXKLA1 is based on a self-oscillation topology. It uses a pair of transistors (one N-channel, one P-channel) functioning as a switch to convert AC input signals into DC output signals. By controlling the gate voltage of the transistors, the current through the transistors is switched on and off to create the desired voltage waveform. The IC also uses a feedback loop to regulate the output, as well as to detect any fault conditions.

The ICE5QR0680AZXKLA1 IC is suitable for a wide range of applications, such as AC/DC adapters, lighting systems, and small appliances. Its features are ideal for those applications that require high efficiency, low noise and minimal external components. Its tiny form factor makes it the perfect choice for applications where space is at a premium.

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