LT3956EUHE#PBF

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LT3956EUHE#PBF is a 4-Channel LED Driver module manufactured by Linear Technology. This PMIC – LED Driver, is a highly efficient linear charger and capable of driving up to four parallel LEDs. This product is targeted at applications such as automotive lighting, consumer electronics, cell phones and other mobile devices, machines, and automation.

The LT3956EUHE#PBF provides a wide range of features and functions including a 4-channel low-side current regulator, 4-channel series linear regulator, 4-channel high-side linear regulator, and a 4-channel independent voltage reference. It has a high-volume production solution that is optimized for multiple load environments, allowing for a more cost-effective and space-efficient product design. It is both RoHS and Pb-free compliant and is available in a lead-free (optional) package.

The LT3956EUHE#PBF application field can be divided into four different segments. The first segment consisits of automotive lighting applications. This module is designed to provide multiple channels of current and voltage regulation to drive multiple LED lamps in automotive lighting systems. It is able to regulate current, thus avoiding the use of a large current regulator or separate MOSFET switch driver. The module also provides a low-noise step-down voltage regulator for dimming control, several input voltage ranges and a wide array of frequency and current reference options.

The second segment of the LT3956EUHE#PBF application field is consumer electronic applications. This module is ideal for use in consumer electronic devices such as television, digital video recorder (DVR), or digital video player/recorder (DVPR). It enables the creation of compact, efficient and reliable LED lighting systems. It is able to regulate current and provide dimming control over several LED lamps, with the aim of providing an aesthetically pleasing lighting result. The module incorporates several input voltage ranges, frequency options and current references.

The third segment of the LT3956EUHE#PBF application field is mobile devices. The module is designed to provide efficient current and voltage regulation in mobile devices such as cell phones, tablets, and personal digital assistants. It is able to regulate current and provide dimming control over several LED lamps, with the aim of providing a high-quality picture and video performance. The module incorporates several of the same features as the LT3956EUHE#PBF for consumer electronic applications, including current references and frequency options.

The final segment of the LT3956EUHE#PBF application field is machinery and automation. This segment includes robotics, production machinery, or any other type of automation applications where a reliable and robust lighting solution is required. This module is designed to provide efficient current and voltage regulation in these types of applications. It is able to regulate current and provide dimming control over several LED lamps and other low-power lamps with the aim of providing lower power consumption and improved visibility.

The LT3956EUHE#PBF working principle is based on the principle of serieslinear current regulation. The main components of this module are the four linear current regulators, four series linear regulators and four independent voltage references. In this module, the series linear regulator works by setting the LED current and the LED voltage, while the linear current regulators are used to regulate the total LED current. The four independent voltage references are used to generate the voltage drop across each LED string. This principle allows the module to drive up to four parallel LEDs with regulated current and the same voltage drop across each LED. The LT3956EUHE#PBF is an efficient, reliable and cost-effective 4-Channel LED Driver module, which is suitable for numerous applications in various fields.

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