MAX1910EUB+T

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PMIC - LED Drivers are commonly used in a variety of applications, including industrial, automotive and consumer electronics. The MAX1910EUB+T is a highly integrated, automotive grade driver designed to drive multiple loads, providing features such as thermal protection, open-loop circuit protection and polarity protection. In this article we will discuss the application field and working principle of this driver.

MAX1910EUB+T driver is intended for operation of automotive LEDs, including pass-through LEDs for turn indicators, marker lights, interior LEDs, switchable LEDs and more. It is optimized for a wide range of automotive LED configurations, from simple single LEDs to high-current multiple series/parallel LEDs. This driver effectively combines two drivers into a single device, providing a single-output step-down linear power supply for driving the automotive LEDs.

The MAX1910EUB+T driver is based on a buck regulator topology, with a integrated high-side switch and low-side switch. This driver offers a range of operating conditions, including output current of up to 1A and input voltage up to 20V. This flexibility allows it to be used in a variety of applications, from automotive to industrial and consumer electronics.

When using the MAX1910EUB+T driver, the input voltage is divided between a single input and a positive feedback path, with the positive feedback path connected to the output. The output voltage of the driver is determined by the voltage drop between the output and feedback pins. The output voltage of the driver is then applied to the LED, which is controlled by the driver\'s internal control circuitry.

The driver\'s internal circuitry is responsible for controlling the output current of the LED. The MAX1910EUB+T driver has a built-in Proportional Integral (PI) controller, which adjusts the output voltage of the driver based on the feedback voltage. This helps to keep the output current of the LED at a consistent level. The driver also features an adjustable slew rate, which allows the driver to provide a smooth transition between high and low brightness levels.

The MAX1910EUB+T driver also features a thermal protection circuit, which is designed to protect the driver from overloading and/or overtemperature conditions. The circuit shuts down the driver if it detects an over-temperature or over-load condition. The driver also includes an open-loop circuit protection for short circuits and polarity protection for reverse polarity connections.

In summary, the MAX1910EUB+T driver is a highly integrated, automotive grade driver designed for driving automotive LEDs. This driver combines two drivers into a single device, providing a single-output step-down linear power supply. The driver also features built-in protection circuits for thermal and over-load protection and polarity protection. This driver is suitable for driving a wide variety of automotive LED configurations, from simple single LEDs to high-current multiple series/parallel LEDs, providing a cost-effective solution for automotive LED applications.

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