FAN5333SX

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The FAN5333SX is an integrated low-voltage, high-efficiency switching mode power supply converter, which belongs to PMIC - LED Drivers. It can provide dozens of milliwatts to a few watts of power and is widely used in LED drive and various battery operated systems.

The FAN5333SX is capable of connecting as many as four LED strings in series/parallel configuration with up to 25V DC input voltage. The device offers an easy, low cost solution with high efficiency, low component count and high productivity.

The FAN5333SX integrates all the necessary functions in one package, thus eliminating the need for external components. Its current mode architecture also eliminates external components. Furthermore, its integrated low keep-out voltage and shutdown protection eliminates the external voltage over-voltage protect protection (OVP) circuitry.

The FAN5333SX features a full range of protection features including over-voltage protection (OVP), current limit and short circuit protection, thermal protection and open LED detection. It also features multi-channel dimming control, including pulse width modulation (PWM) and digital dimming.

In addition, the FAN5333SX offers advanced features, such as programmable deadtime control, voltage feedback and selectable output frequency, while providing low total harmonic distortion (THD). Other features include low bill of material (BOM) cost, fast transient response and low conducted EMI.

The FAN5333SX is designed to operate as a high-efficiency, high-current LED driver in a wide range of applications. It is suitable for use in mobile handsets, digital still camera, video and other portable consumer electronics. It is also capable of driving light-emitting diodes in a variety of indications, such as bar code scanners, alarm panels, industrial control and automotive lighting systems.

The FAN5333SX uses a synchronous boost converter topology to deliver high current LED strings with up to 25V DC input voltage. The output LED has a typical forward voltage of 3.2V and a maximum forward current of 1.2A. The output current is regulated using an external resistor. The device has a wide 1.2A to 16A adjustable output current capability, which provides flexibility in designing various LED applications.

The FAN5333SX offers several advanced features that provide significant design flexibility and improved efficiency. These features include programmable dead time current, voltage feedback, adjustable soft-start and selectable output frequency. The programmable switching frequency and current limit control provide a wide range of performance control, allowing for faster transient response, increased efficiency and higher conversion power.

The FAN5333SX also integrates an advanced protection circuit to ensure robust and reliable operation. These features include over-voltage protection, current limit and short circuit protection, as well as thermal protection. The device also provides over temperature detection and open LED protection. All of these features provide added safety for the device and user.

The FAN5333SX is designed to be an efficient, low-cost solution for LED drivers in various applications. Its various advanced features provide significant design flexibility while the integrated advanced protection circuit ensures a safe operating environment. These features, combined with its high current capability and low bill of material cost, make it an ideal choice for LED drivers.

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