LT3761EMSE-1#PBF

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The LT3761EMSE-1#PBF is classified as a PMIC - LED Driver, and it is highly coveted in the marketplace due to its efficient performance and reliable operation. This device integrated a power management system-on-a-chip, a linear white LED driver with combined programmable output current, and it is designed to drive high-current three-channel white LEDs. This article provides detailed information on the application field and working principle of the LT3761EMSE-1#PBF .

Application Field

The LT3761EMSE-1#PBF is a highly integrated DC-DC power management solution with a multichannel LED driver for portable or fixed applications. It is ideal for applications such as home or office lighting, custom LCD backlighting, automotive lighting, and even architectural lighting. This device also offers a complete solution for driving high-current LEDs with or without external dimming control. Additionally, this device can be used to create different types of LED lighting effects, such as strobing, fading, and gradual intensity changes.

The LT3761EMSE-1#PBF is a PWM current control LED driver with an integrated output voltage regulator, which operates over an extended input voltage range of 3.0 V to 12.6 V. It is designed to operate within a wide range of operating temperatures and it is available in a 3mm x 3mm QFN-16 package.

The LT3761EMSE-1#PBF is designed to minimize cost and component count while exceeding efficiency and performance requirements. This device also offers a high level of integration, which reduces the need for additional components, simplifies the circuit design, and helps reduce the overall cost of the system.

Working Principle

The LT3761EMSE-1#PBF is a PWM current control LED driver. It works by controlling the LED current by varying the input voltage to a buck-boost voltage regulation circuit. This device features a low-side N-channel MOSFET that acts as a switch, allowing the current to be adjusted for each of the three LED channels. The current is programmed via an external resistor and a voltage defined by a resistor divider connected to the CTRL pin.

The LT3761EMSE-1#PBF also features a mode input pin, which can control the LED current in two different modes. The first mode is a constant current mode, in which the LED current is adjusted with a single external resistor with minimal input current. The second mode is an LDO mode, in which the LED current is adjusted with an external LDO and a DC reference voltage.

In addition, the LT3761EMSE-1#PBF also has an adjustable dimming control pin that allows for PWM dimming from an external control signal. It also has an over-temperature protection circuit that monitors the temperature of the device and shuts down the LED driver if the temperature exceeds a predetermined limit.

The LT3761EMSE-1#PBF offers excellent performance and reliability. It also has a low profile and minimal component count, which allows for easy integration into a system\'s existing power architecture. Moreover, its wide operating temperature range and wide input voltage range make it well-suited for a variety of different applications.

The LT3761EMSE-1#PBF combines an efficient power management system-on-a-chip and a linear white LED driver to provide a complete solution for driving high-current LEDs with or without external dimming control. Its wide operating temperature range, low component count, and high integration make it ideal for a variety of different applications.

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