MP24183DQ-LF-P

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PMIC – LED Drivers offer integrated solutions to power LEDs in a variety of applications. They provide an easy and cost-effective way of controlling power and illumination of LED systems, allowing designers to quickly and easily realize their project goals. The MP24183DQ-LF-P is a Pulse-Width Modulated (PWM) LED driver for driving multiple LED lamps in series. It is designed for constant LED current control, allowing users to achieve different LED brightness levels by varying the PWM duty cycle.

The MP24183DQ-LF-P is well suited for automotive applications such as tail lights, brake lights, and so on. The device offers excellent stability and reliability in harsh automotive environments, enabling reliable operation even in high temperatures and with large temperature induced variations. The MP24183DQ-LF-P is also an ideal solution for general applications such as backlighting and LCD displays.

In addition to its application fields, how does the MP24183DQ-LF-P work? And what features does it have? This article will explore the working principles and features of the MP24183DQ-LF-P.

Working Principle

The MP24183DQ-LF-P comprises of an input asynchronous pulse width modulator (APWM), a power output stage, a voltage regulator, a reference voltage source, and an LED current regulator. The APWM converts the given input voltage into an output current signal, which is used to control the LED current output. The LED current output is determined by the resistor connected to the PWM pin.

The voltage regulator monitors the input voltage and maintains a constant output voltage at the output terminal of the device. The reference voltage source controls the output current of the device, and provides a stable reference voltage to the LED current regulator. Finally, the LED current regulator maintains a constant current flow through the LEDs.

The MP24183DQ-LF-P is designed to provide a constant current output for driving LEDs in series. The current is regulated by varying the duty cycle of the input PWM signal. The MP24183DQ-LF-P can be synchronized with an external signal, allowing a wide range of output currents and brightness levels.

Features

The MP24183DQ-LF-P features a wide range of protection and control features, which protect the device and the LEDs from damage, and enable the device to reliably deliver constant current output.

First, the device has built-in over-current protection which ensures that the current flows within a predetermined range, thereby protecting the device and LEDs from damage. Second, the device comes with an adjustable current limit, which can be set to accommodate different LED configurations and applications. Third, there are thermal protection circuits which protect the device from damage due to over-temperature. Finally, the device supports multiple channels, allowing up to 4 strings of LEDs in series.

In addition, the MP24183DQ-LF-P has some other features that make it suitable for different applications. It is capable of operating from a wide input voltage range of 8~50V, making it suitable for a wide range of LED applications, such as automotive and industrial applications. The device also supports a wide range of PWM frequency range from 20KHz~200KHz, making it suitable for different lighting applications. Finally, the device is designed to be compliant with EMC requirements, allowing it to be used in the most demanding applications.

In conclusion, the MP24183DQ-LF-P is a powerful and reliable LED driver device with lots of features, making it suitable for a wide range of automotive and industrial applications. The device is capable of providing constant current to LEDs in series, and has built-in protection and control features that make it suitable for even the most demanding applications.

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