MAX20098ATE/V+T

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It is well known that regulating the drive current seen by the light-emitting diode (LED) is an important factor in achieving optimal illumination. The DC/DC constant-current boost converter (CCBC) is a type of power management IC (PMIC) that can regulate the current seen by the LED, providing superior lighting performance and energy efficiency. This article will examine the MAX20098Ate/V+T power management IC family and provide an overview of its application field and working principle.

The MAX20098Ate/V+T PMIC family is designed to offer comprehensive protection from the most common and destructive operating conditions that can occur in LED lighting. These include input overvoltage, overcurrent and overtemperature conditions, as well as LED open and short circuit and thermal shutdown failures. The MAX20098Ate/V+T PMICs are the first PMICs to offer the added protection of LED failure detection in a low-cost, easy-to-use solution.

The MAX20098Ate/V+T PMICs are geared towards LED lighting applications, such as computer monitors, televisions, desktop and laptop displays and LCD backlighting. The PMICs are highly efficient, have an integrated dual phase drive and an integrated boost transformer, and feature small packages and large inductor sizes, making them ideal for integrated LED lighting designs. Additionally, the MAX20098Ate/V+T PMICs are capable of operating on a wide range of voltage and temperature levels, as well as containing multiple LED channels, making them suitable for LED lighting designs in various lighting scenarios.

In terms of working principle, the MAX20098Ate/V+T PMICs are designed for applications with high-current constant current LED drivers. They operate by using two integrated MOSFETs (metal-oxide semiconductor field-effect transistors) to generate a constant current in the desired LED string. This constant current is triggered by a pulse width modulation (PWM) signal from the PMIC. The PMIC also contains a temperature compensation circuit that guarantees stable current regulation in all temperature ranges, as well as an integrated thermal protection circuit that prevents damage due to overheating.

The MAX20098Ate/V+T PMICs are highly efficient, with an efficiency of up to 87% in low ambient temperature applications. They also feature a low quiescent current that helps to save energy and a built-in soft-start function for a smooth power-on transition. Additionally, the MAX20098Ate/V+T PMICs are designed for complete protection from overvoltage, overcurrent and overtemperature conditions, as well as LED open and short circuit and thermal overload failures.

In order to convert the input voltage to a constant current, the MAX20098Ate/V+T PMICs use an integrated boost converter and a dual-phase topology. The boost converter is controlled by a PWM signal to adjust the current in the LED string in accordance with the input voltage. The MAX20098Ate/V+T PMICs feature an integrated adjustable voltage regulator, which allows the user to adjust the output voltage to match the current draw of the LEDs. The integrated boost transformer also provides galvanic isolation between the input and output, further enhancing the safety of the design.

To summarize, the MAX20098Ate/V+T PMIC family is a highly efficient, low-cost and easy-to-use solution for LED lighting applications. It provides complete protection from the most common and destructive operating conditions, such as overvoltage, overcurrent and overtemperature conditions, and LED open and short circuit and thermal overload failures. Additionally, the MAX20098Ate/V+T PMICs use an integrated dual-phase drive and an integrated boost transformer, along with a temperature compensation circuit, to provide supreme lighting performance and energy efficiency. As such, the MAX20098Ate/V+T PMIC family is an excellent choice for your LED lighting needs.

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