FC4B21300L1

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FC4B21300L1 Application Field and Working Principle

FC4B21300L1 is a Power Distribution Switches, Load Drivers product manufactured by Power Integrations. It integrates multiple switching and control functions in one monolithic solution, making it an ideal choice for a wide range of applications from consumer products to automotive.

Application Field

The FC4B21300L1 is suitable for a wide range of applications such as: power distribution switches, power supplies, audio, LCD display controllers, LED drivers, motor control, and general-purpose power switches. It can also be used for DC-DC converters, AC-DC converters, multi-phase systems, current-mode/constant-current-mode/constant-voltage-mode converters, and even buck-boost regulators.

In consumer products, the FC4B21300L1 is suitable for mass-production consumer appliances such as laptop computers, portable DVD players, digital cameras, camcorders and other small home appliances. It can also be used to control power supplies in automotive, avionics and industrial applications.

Working Principles

The FC4B21300L1 is a highly integrated, cost-effective solution for high-voltage power distribution. It features a highly efficient integrated oscillator and pulse-width-modulated (PWM) control circuitry for low-noise operation and accurate control over the switching frequency, output voltage, and battery current.

The FC4B21300L1 is optimized for high-voltage handling and operates from 12V to 60V input voltage with a 3.2A switching current. It also features PWM control circuitry and a wide operating temperature range from –40°C to +125°C.

The integrated circuit offers flexible drive and control to provide low-noise operation and improved efficiency. The low-noise switching behavior is further improved due to the integrated Schottky diode, allowing the switch to keep operating even in difficult conditions.

The integrated diagnostics circuit offers a modern system monitoring and protection, including undervoltage lockout, open-drain output, and output short-circuit protection. The on-chip thermal protection circuitry ensures safe operation over the wide temperature range.

The FC4B21300L1 has a low minimum on-time and fast response to enable smooth transition of the timer and/or output voltage. It can also be integrated into existing systems without any modifications due to its high-voltage nature.

Conclusion

FC4B21300L1 is a high-voltage, integrated Power Distribution Switches and Load Drivers solution that allows for efficient operation and control over the switch frequency, output voltage, and battery current. Its impressive range of applications and ability to function in a wide range of operating conditions make it an ideal choice for a wide range of applications, from consumer products to automotive.

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