MAX20098ATE/V+

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LED (Light Emitting Diode) technology is currently being used in a wide variety of applications, including automotive, industrial, medical, and general purpose lighting applications. In order to apply this technology efficiently, it is necessary to use an appropriate power management and control device, usually referred to as an LED driver. The MAX20098ATE/V+ is a high-efficiency, synchronous buck LED driver, which can operate at up to 25V and utilizes synchronous operation to improve efficiency over traditional, non-synchronous regulators.

Application Field

MAX20098ATE/V+ simplifies power supply design by delivering high efficiency across a wide platform of input voltage and output currents. This range spans from 2.5V to 25V for input voltage, and outputs up to 10A operation in fixed voltage or fade mode. This IC is also capable of driving current levels up to 25V for various applications, including the use of microprocessor or voltage regulators to control LED dimming or color-control.

The MAX20098ATE/V+ is best suited for mobile and industrial equipment where space is limited. It operates over an extended temperature range of -40℃ to +125℃, making it well-suited for automotive and industrial lighting applications. In addition, it also features a user-friendly graphical user interface (GUI) with simple controls, allowing it to be quickly and easily programmed.

Work Principle

The MAX20098ATE/V+ is designed to work with low-voltage input sources up to 25V, and features a synchronous buck controller to ensure high efficiency and performance. It eliminates the need for separate external inductors and bypass capacitors, and features a fully integrated frequency hopping for improved stability.

The MAX20098ATE/V+ employs a unique hysteretic control architecture, which ensures rapid and accurate voltage regulation over a wide range of load conditions. This architecture also provides phase-lockable spread-spectrum, making it suitable for noise-sensitive applications. The device’s adjustable frequency synchronous buck topology enables current sharing for higher output currents.

To protect and maintain safe operation, the MAX20098ATE/V+ includes various protection features, including short-circuit, over-temperature, and over-voltage protection. It also features an adjustable current-limit threshold, allowing the user to configure the system for optimal light output and performance.

Summary

The MAX20098ATE/V+ is a high-efficiency, synchronous buck LED driver, designed for low-voltage applications and configurable for various LED dimming and current sharing requirements. It is best suited for automotive and industrial lighting applications, and includes various protection features for safe operation. This device is capable of meeting high efficiency levels, even when far from ideal loading conditions, thus reducing overall system cost.

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