LT3762HFE#TRPBF

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PMIC - LED Drivers

LT3762HFE#TRPBF application field and working principle

LT3762HFE#TRPBF is a high current LED driver product, developed for application in commercial and industrial LED lighting. The product has been designed as a high-efficiency and high-reliability current sink for driving up to three high power LEDs. The operation is based on a 4-Quadrant current controller, capable of delivering up to 3.2 A of drive current. The wide input voltage range of 4.5 to 42 V, the high efficiency up to 91%, the wide output current range of 0 to 3.2 A in sink mode, and the user-friendly interface make this product ideal for driving strings of high power LEDs.

The device includes an adjustable output voltage ramp function, a dedicated enable pin, an adjustable soft start function, an external user-selectable soft dimming control, and a PWM voltage control. The LT3762HFE#TRPBF also includes a current sense, threshold and ramp control, which works in conjunction with the device’s 4-Quadrant current controller to regulate LED current. LT3762HFE#TRPBF supports both constant current and constant voltage operation and can drive up to three strings of LEDs in parallel for increased power handling capabilities.

The LT3762HFE#TRPBF is designed for a variety of applications, including general illumination and commercial lighting, automotive and automotive aftermarket lighting, outdoor advertising signs, decorative street lighting and architectural lighting, road and path lighting, and medical and entertainment lighting. With its high current capability and wide feature set, the LT3762HFE#TRPBF is the perfect choice for a wide variety of LED lighting applications.

The LT3762HFE#TRPBF is easy to use. By connecting the device to the power source and setting the three input pins to the desired values, the output can be controlled. The Enable pin is set to logic high (Venable=HI). The Soft Dim load pin is connected to a specified torque potentiometer, cap, or resistor. The Soft Dim Load pin then controls the output brightness. The Running Soft Ramp pin is connected to a wide range 0 to 100V voltage source. The control voltage will set the output voltage ramp.

In addition, the LT3762HFE#TRPBF features overvoltage protection and adjustable overcurrent protection with flexible programmable current monitoring. This ensures that the LEDs being driven are optimally used and will not be subjected to too much current due to changes in external conditions.

The LT3762HFE#TRPBF is a great choice for efficient and reliable LED operation. With its high current capability, wide feature set, and efficient power conversion, the LT3762HFE#TRPBF is sure to meet the needs of a variety of LED lighting applications.

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