FAN3224TUMX-F085

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PMIC or Power Management ICs are integrated circuits that provides complete power supply solutions for different kinds of applications. FAN3224TUMX-F085 is a popular power management IC (PMIC) for Gate Drivers, used for automotive electronics, telecommunication equipment, and computer peripherals. This PMIC is comprised of MOSFET drivers, bootstrap diodes, SOFT start supervision, and fault protection, making it perfect for applications where high current, high power, and fast response times are required.

FAN3224TUMX-F085 Application Field

FAN3224TUMX-F085 is a two-channel, low external component count, DC/DC boost regulator IC designed to provide superior performance and low-noise operation in a small space-saving package. It is used to provide robust and reliable power sources for hot-swap, load-switch and other applications. With a wide output range, it can be used in automotive or industrial applications such as lighting, appliance controllers, actuators, and HVAC.

The two channels on the FAN3224TUMX-F085 provide independent, simultaneous regulation of output voltage settings. The device is designed to operate over a wide input voltage range of 6.7V to 12.6V with an internal peak current limited switch capable of sourcing up to 2A of continuous current into the load.

The FAN3224TUMX-F085 also includes current-sense comparators and fault protection features, allowing the application to detect over-current, under-voltage, and thermal conditions, providing safe and reliable power to connected loads.

FAN3224TUMX-F085 Working Principle

The FAN3224TUMX-F085 is a two-channel, boost and flyback regulator IC with integrated protection and current-sense comparators. The device includes a driving stage, a feedback loop, an over-current protection circuit, an over-temperature circuit, and short circuit protection circuitry.

The driving stage consists of two channels with adjustable output voltages. For each channel, the device includes a pulse width modulator for controlling the output voltage and a dedicated MOSFET driver for switching the MOSFET. The MOSFET driver is configured to switch at high frequencies, reducing the system on-resistance and allowing smaller external components.

The FAN3224TUMX-F085 boost regulator is designed to operate in either of two modes: burst mode or fixed frequency mode. In burst mode, the output voltage is regulated via a peak current-sensing system, while in fixed frequency mode, the output voltage is regulated by a voltage loop system. Both the burst mode and fixed frequency modes provide the highest efficiency in their respective applications.

The FAN3224TUMX-F085 over-current and over-temperature protection circuits are configured to provide protection against excessive operating temperature and power dissipation. It also includes short circuit protection faults for input switch current and output voltage range.

The FAN3224TUMX-F085 also includes a remote-on/off feature that enables the user to remotely turn the device on or off. An external capacitor is used to supply a voltage to the on/off signal that is used to activate or deactivate the driving stage.

In summary, the FAN3224TUMX-F085 is a two-channel, DC/DC boost regulator IC designed to provide robust and reliable power sources for automotive and industrial applications. It features a wide input voltage range, peak current-sensing system, over-current protection, and remote-on/off control. Its efficient and durable designs make it an ideal choice for many gate driving applications.

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