LT3590EDC#TRMPBF

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Introduction

The LT3590EDC#TRMPBF, manufactured by Linear Technology Corporation, is a high-voltage, regulated PMIC (Power Management Integrated Circuit) LED driver. This device is designed with state-of-the-art proprietary Constant-On-Time (COT) architecture and can be used to drive white and RGB LEDs from a wide range of supplies, with market-leading brightness levels.

Application Field

The LT3590EDC#TRMPBF offers the benefit of flexibility and ease of use in a wide range of applications. These applications include solid state lighting, automotive and general illumination, device backlighting, and even RGB light applications. This device offers an impressive degree of output current, ranging from small signals to over a hundred milliamps, making it suitable as a high-efficiency buck-boost LED driver.

The LT3590EDC#TRMPBF’s wide input voltage range, ranging from 4.5 V to 70V, facilitates variations in input voltage due to supply variations or input power-sources. It also features enhanced transient protection and enable/disable control. This device is also capable of dimming down or switching off LEDs, as well as compensated sensitivity that keeps operating temperatures to a minimum.

Working Principle

At the heart of the LT3590EDC#TRMPBF is the proprietary Constant-On-Time (COT) architecture. This circuitry operates on a 2-phase control method where one phase controls the LED current and the other phase controls the LED’s forward-voltage drop. By doing so, the LED current can remain constant over a wide range of input-voltage supply and LED temperature values. In addition, the device features auto-sensing optimized dimming control architecture that allows dimming down or switching off the LEDs in response to user input.

To make the LT3590EDC#TRMPBF easier to use, it has an integrated PWM dimming circuit that is compatible with all major PWM dimming standards. This circuit also enables the use of synchronized dimming to ensure uniform color balance and brightness when used with multiple output channels. Additionally, the device has flexible power-up and power-down sequencing, which enables fine-tuning of the power-up and power-down amplitudes.

Conclusion

The Linear Technology Corporation’s LT3590EDC#TRMPBF is a high-voltage, regulated PMIC LED driver that is suitable for a wide range of applications. It is equipped with Constant-On-Time (COT) architecture, which maintains accurate LED current over a wide range of input-voltage supply and LED temperature values. This device also features optimized dimming control and PWM dimming compatibility, making it easy to use. Because of its high-efficiency, the LT3590EDC#TRMPBF is the perfect choice for applications that require reliable high-voltage LED lighting solutions.

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