LT3922EUFD#PBF

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PMIC - LED Drivers are a cost-effective solution for providing high-efficiency lighting in commercial and industrial applications. The LT3922EUFD#PBF is a current mode high power LED driver that utilizes a P-MOSFET with high saturation drain-source current of over 40A. It also features a programmable current sense threshold for improved efficiency and precise current sense monitoring for accurate current detection.

The LT3922EUFD#PBF is suitable for LED Flood Lighting, LED Strips, LED Spot Lights, LED Downlights, LED Garden Lights and LED Signage. It is designed to provide dimming control and constant current regulation for LED illumination applications. The device features a highly efficient current-mode control that allows for precise current regulation and a maximum LED output power of up to 3900W.

The LT3922EUFD#PBF or any other PMIC device provides the following advantages:

• High efficiency current-mode control for precise current regulation
• Programmable current sense threshold for improved efficiency and precise current sense monitoring
• Compact package for easy integration into existing systems
• Low standby power consumption and low heat dissipation

The LT3922EUFD#PBF works on the principle of a buck converter. A buck converter is a DC-to-DC converter that steps down voltage from a higher voltage source to a lower voltage output. The LT3922EUFD#PBF is an integrated buck converter with a high-side resistor to control the output current of a connected LEDs. This arrangement allows the LT3922EUFD#PBF to regulate and manage the output power of the system.

The LT3922EUFD#PBF features an adjustable output current range of 0.1mA to 1000mA with an output current accuracy of 1%. Furthermore, it has an output voltage range of 5V to 50V constant voltage or 5V to 48V adjustable voltage. The device also features a large margin of the current regulation of ±1.2% which provides the required stability to the system.

The device also provides protection from external and internal events such as undervoltage, overvoltage, over-current, and thermal overload protection. The device includes a 2-channel PWM dimming control for different dimming effects. The LT3922EUFD#PBF can be used to control a wide range of LED lighting applications such as ceiling lights, wall lights, landscape lighting, and signage lighting.

In conclusion, the LT3922EUFD#PBF is a cost-effective and efficient LED driver designed to provide precise current regulation and constant current regulation. Its programmable current sense threshold and low standby power consumption makes it an ideal solution for a wide range of LED lighting applications. It also offers an adjustable output current range of 0.1mA to 1000mA with an output current accuracy of 1% and a wide margin of the current regulation of ±1.2%. Lastly, its 2-channel PWM dimming control offers adjustable dimming effects for different applications.

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