AL8400QSE-7 Integrated Circuits (ICs)

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LED drivers are an important component of many lighting systems due to their ability to provide efficient operation of LEDs and make them easier to control. The AL8400QSE-7 is a type of PMIC-LED driver,which is a complete solution for driving low-to-medium power LEDs from a constant current or from power supplies that have wide input range. It is suitable for cost-effective applications and integrates a dimmer controller for dimming, PWM for flicker control, and IC for flow control and protection.

Features of AL8400QSE-7

The AL8400QSE-7 is a PMIC-LED driver that has two main features:

• The unit is highly efficient, reaching up to 96% efficiency.
• It has adjustable output current with a range of up to 1.2A.

Applications

The AL8400QSE-7 PMIC-LED driver is suitable for multiple applications and can be used as a constant current driver for low-to-medium power LED stripes, LED modules, or LED displays. It can also be used in LED lighting products such as LED lamps, LED tubelights, LED dimmers, LED streetlights, as well as applications such as automotive lighting, flashlights, and portable lighting.

Advantages of AL8400QSE-7

• High efficiency thanks to an integrated dimmer controller, PWM flicker control, and IC flow control and protection module.
• Adjustable output current range, up to 1.2A.
• Low EMI and high immunity performance.
• Wide input range, from 10V to 50V.
• High-temperature operation, up to 90°C/85°C.

Working Principle

The AL8400QSE-7 PMIC-LED driver is based on a patented power conversion technology called PWM-to-Digital Pulse Width Modulation Control. This technology provides the unit with high efficiency and high immunity capabilities, while preserving low EMI levels. It also allows for a wide input range and high-temperature operation. The unit utilizes two main elements: a step-down DC-DC converter and a current regulator with closed loop control. The step-down DC-DC converter provides the necessary voltage to the LED load, while the current regulator adjusts the output current to the desired output level. The output current can be adjusted by changing the reference voltage of the current regulator, which is connected to the PMIC’s internal voltage regulator or external voltage reference. The unit also includes a dimmer controller, which can be used to adjust the luminance from 0% to 100%. Finally, the unit also includes a PWM flicker control for reducing LED flicker, and an IC flow control and protection module.

Conclusion

The AL8400QSE-7 PMIC-LED driver is a well-suited product for a wide range of applications. It offers an efficient controls package integrated with a dimmer controller, PWM flicker control, and IC flow control and protection module. It has a wide input range, up to 50V, and a wide output current operating range, up to 1.2A. In addition, it supports high-temperature operation, up to 90°C/85°C. The unit’s patented power conversion technology ensures high efficiency and low EMI performance.

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