MAX16838AUP/V+

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The MAX16838AUP/V+ is one of the most popular LED drivers in the PMIC - LED Drivers category. It boasts robust features which make it suitable for the modern lighting environment. The MAX16838AUP/V+ can be used in many different applications such as automotive interior/exterior lighting, signage illumination, architectural illumination and industrial lighting. This article will discuss the application field of the MAX16838AUP/V+ as well as its working principle.

Application Field

The MAX16838AUP/V+ has an array of features that make it suitable for many different applications. The device is able to drive up to three strings, each string being made up of up to 8 LEDs for a total of 24 LEDs. The operating input voltage range of MAX16838AUP/V+ is from 7V to 40V which not only makes the application suitable for automotive applications but also for many industrial and general lighting applications. The device also has a wide range of dimming options which include both PWM and analog dimming support. This makes it perfect for dynamic lighting system that require a wide range of dimming options.

The MAX16838AUP/V+ is further enhanced with a programmable converter synchronization capability which allows the device to control multiple LED converters and keep them perfectly in sync. This feature ensures good visual uniformity of the LED lighting system. The device is also short-circuit protected which ensures the LEDs are not over-driven or damaged in case of a short circuit.

Apart from the features above, the device is also embedded with protection features such as cycle-by-cycle current limit, over current protection and thermal shutdown protection. This adds to the safety of the LED lighting system as it minimizes potential damage and provides a stable light source.

Working Principle

The MAX16838AUP/V+ LED driver has a unique architecture which enables it to deliver high efficiency LED lighting solutions. The device is made up of a boost converter, PWM dimmer, converter synchronization block, protection circuitry and LED logic. The boost converter helps in regulating the output current to the LED and the PWM dimmer allows for dimming of the LED light output. The converter synchronization block helps the device to keep multiple LED converters in sync.

The protection circuitry ensures the safe and proper operation of the LED driver by providing over-current, over-voltage, under-voltage and overload protection. The device is also embedded with a thermal shutdown feature which stops the device from further operation if the temperature exceeds a certain threshold. The LED logic ensures that the LED strands/modules are powered correctly and also monitors for any potential faults in the strand/module.

Aside from the internal features, the MAX16838AUP/V+ also has many external features. The device has a very low ripple current of 100mA, enabling the device to provide a clean and stable power delivery to the LEDs. The device can also be synchronized with external PWM/analog dimmers to provide different dimming options. The external pins allow for various programming options such as current setting, phase shift etc.

In conclusion, the MAX16838AUP/V+ is a great choice for many PMIC - LED Drivers applications. Its array of features make it suitable for wide range of applications and its robust protection circuit ensure that the device provides a safe and reliable operation. Additionally, the device’s wide operating input range and multiple dimming capabilities make it the ideal choice for dynamic lighting systems. The abovementioned external and internal features of the MAX16838AUP/V+ make it one of the best LED drivers in the PMIC - LED Drivers category.

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