FAN7621SSJX

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The FAN7621SSJX is a Power Management IC, or PMIC, used in AC and DC converters, and other types of offline switchers. It is a common and popular choice in many applications, as it offers great performance, and is reliable and cost-effective. This article explores the various aspects of the FAN7621SSJX and its application field, as well as its working principles.

Overview

The FAN7621SSJX is a PMIC designed to provide power conversion and management needed in various AC and DC converters, and as well as offline switchers. It is compliant with JEDEC55 standard, which ensures that the device will be able to handle high surge currents, and operate efficiently over a variety of temperature ranges. It is based on high switching frequency, and is powered by an N-channel MOSFET.

The use of SOIC packages allows for a relatively small package size, making it well-suited for applications with limited board space. It also features high voltage outputs in a wide range from 0.55 V up to 3.3 V, and is designed for use with high voltage input source. The chip also offers a slew rate of up to 40 V/us, and a very low quiescent supply current of 33 mA or less.

The FAN7621SSJX offers excellent efficiency and comes with a built-in protection circuit, which provides a variety of safety features for both the chip and the connected device. It can also be used in negative output applications, with a maximum output current of up to 2 A.

Application Field

The FAN7621SSJX is a popular choice for many AC and DC converter applications. It is well-suited to power supplies, motor driver circuits, solid-state relays, and other applications that require a high current, high voltage off-line switcher. It is a great choice for industrial applications, as it can withstand extreme temperatures and are still highly reliable and efficient.

It is also an ideal choice for consumer applications, as it is low-cost and easy to integrate. It can be used in appliances, lighting, and other consumer electronics. It is also an excellent choice for automotive applications, as it is compatible with numerous automotive standards, making it very reliable in a variety of conditions.

Working Principle

The FAN7621SSJX is based on a high switching frequency MOSFET architecture. In this architecture, the power stage is controlled by an N-channel MOSFET, which is driven by an integrated control chip. The control chip, in turn, is connected to the control terminals. The control chip interprets the signals at the control terminals and drives the MOSFET accordingly, which in turn changes the power output.

The chip also comes with built-in protection circuits, which protect both the device and the connected load. They help avoid problems like short-circuiting, overtemperature, and overvoltage. The chip also features a low startup current of only 2.5 mV, which helps reduce the power consumption of the device.

Overall, the FAN7261SSJX provides great efficiency and reliability. It is an excellent choice for a wide variety of applications, and is low-cost and easy to integrate into any system. It is compliant with a number of standards, making it a very reliable and robust option for applications that require a high current, high voltage off-line switcher.

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