LT3965IFE-1#TRPBF

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PMIC - LED Drivers

The LT3965IFE-1#TRPBF LED is a high performance LED driver designed for LED-intensive applications. This LED driver chip has an integrated high-voltage (HV) switch with an internal buck/boost switching regulation scheme and a wide range of adjustable current settings. The LT3965IFE-1#TRPBF LED driver is ideal for applications requiring efficient light output and high current precision.

Application Field

The LT3965IFE-1#TRPBF LED driver is designed for lighting systems and other applications requiring efficient light output and constant current control. It is well suited for lighting applications including general illumination, medical devices, and automotive applications. This device can be used in portable battery-powered applications as well as non-portable AC/DC mains-powered applications.

This driver helps to efficiently control the current through each LED while providing precise current control, excellent dimming performance, and high current accuracy. It is suitable for driving high power LED applications such as spotlights and street lights.

Working Principle

The LT3965IFE-1#TRPBF LED driver is a buck/boost LED driver with an integrated high-voltage (HV) switch. In addition to the buck/boost switching regulation scheme, this LED driver also includes an adjustable current limit. This allows for precise current control during operation. The current limit is set using an external resistor and the output current can be adjusted using an external sense resistor.

In terms of operation, when an external voltage is applied to the input pin, the HV switch is enabled, activating the buck/boost conversion stage. This stage uses a current-mode control technique, which ensures that LED current will remain constant, independent of the input voltage. The output of the buck/boost conversion stage is connected to the LED string and the current limit set by the external resistors will determine the maximum current that can be supplied to the LED string.

Summary

In summary, the LT3965IFE-1#TRPBF LED driver is a high performance LED driver designed for LED-intensive applications. This driver helps to efficiently control the current through each LED while providing precise current control, excellent dimming performance, and high current accuracy. It is suitable for driving high power LED applications such as spotlights and street lights.

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