LT3496EUFD#PBF

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LT3496EUFD#PBF is an efficient LED Driver IC for power management in integrated circuits (PMIC), designed for high power LED operations. It features a very adaptive Maximum Power Point Tracking (MPPT) control to compute the optimal LED power, with a quick response time, low voltage and current accuracy, and excellent thermal stability. The IC incorporates an innovative Multi-Mode Adaptive Output Control (MAOC) to dynamically adjust current level to obtain the desired LED brightness. Additionally, this model of IC provides comprehensive protection against over-temperature, shorts, overcurrent and undervoltage.

General Overview

The LT3496EUFD#PBF is a highly efficient LED driver IC with a Maximum Power Point Tracking (MPPT) control algorithm. It supports LED configurations with up to 20 strings of LEDs in series and a maximum LED current of 8 Amps. The maximum power output of this model is 95W. This model also supports several faults protection measures, such as over-temperature protection and over voltage/overcurrent protection.

The LT3496EUFD#PBF is the first PMIC LED driver to employ Advanced Adaptive Multi-Mode Control (AAMC) to adjust the output current for any number of LEDs in series and for various LED power levels. The driver typically reaches higher efficiency than conventional linear drivers as well as other buck regulators on the market, reaching efficiencies up to 95%. This model is offered in a thermally enhanced TSSOP-20 package, designed to reduce thermal stress, facilitate development and aid in the reliability of the product.

Application Field and Working Principle

The LT3496EUFD#PBF can be used in a variety of different applications, ranging from automotive headlights and outdoor lighting, to handheld products. With its highly efficient operation and integrated protection, it is an ideal solution for small to medium size LED lighting, automotive lighting and other applications which require high current output or high voltage inputs.

The LT3496EUFD#PBF works on a two-loop control system. The first loop is an adaptive-mode control loop, which regulates the LED current and brightness. This is a fast transient response current-mode control loop that utilizes an inner voltage-mode loop to regulate the output voltage within a tight range. This loop operates independently from the supply voltage, allowing for a constant LED current regardless of the input voltage changes. The second loop is a power converter control loop, which tracks the Maximum Power Point (MPPT) of LED strings. This loop utilizes a PI-controller to detect the LED open-circuit voltage and adjusts the converter duty cycle every switching cycle to achieve the optimal output power.

The LT3496EUFD#PBF also includes several safety features, such as an over-temperature, over-current, and under-voltage protection. This allows the driver to automatically reduce the output current when sensing a possible danger. Additionally, it features a soft start current ramp mode, which prevents inrush current from damaging the LED modules.

In conclusion, the LT3496EUFD#PBF is an advanced PMIC LED driver IC for high power LED applications that offers efficient and optimised operation with integrated protection. It is designed to provide high efficiency and high current performance with a quick response time, excellent thermal stability and fast transient response.

The specific data is subject to PDF, and the above content is for reference