MAX16819ATT+T

PMIC - LED Drivers

The MAX16819ATT+T is an automotive grade high side LED driver used in LED backlighting applications. It is an ideal lighting solution for LED-based applications such as flat panel displays, automotive headlamps and general LED lighting fixtures. This LED driver is highly integrated, with a wide range of attractive features that make it suitable for various types of LED-driven applications.

Technical Specifications

The MAX16819ATT+T is available in a variety of package styles and sizes, offering flexibility and ease-of-use in a range of applications. The chip is designed to operate over an ambient temperature range of -40°C to 85°C, and can support up to 3A of peak current through its output pin. For lower current applications, the MAX16819ATT+T also includes a thermal foldback feature that prevents the device from exceeding a maximum operating temperature of 120°C. This feature ensures reliable operation in environments with higher ambient temperatures.

Working Principles

The MAX16819ATT+T works on a multi-mode switching topology, consisting of a high-side output switch, a low-side output switch, and a current sensing resistor. The low side switch is used to establish a ground reference voltage for the LED and the high side switch is used to drive the LED. The current sense resistor is connected in series with the LED, and the voltage drop across it is used to sense the current through the LED and regulate it accordingly.

In addition to operating in the basic mode described above, the MAX16819ATT+T also offers a number of advanced features designed to optimize LED performance. These features include variable pulse width modulation dimming, where the LED brightness can be adjusted by varying the pulse width of the current pulses. The device also features adjustable contrast and brightness, enabling users to adjust the LED output to achieve the desired LED brightness levels. Furthermore, the device incorporates a range of diagnosis functions, enabling systematic fault detection and improving system reliability.

Application Fields

The MAX16819ATT+T is suitable for a variety of LED-driven applications, such as automotive headlight and foglight assemblies, LCD backlighting, instrument panel lighting, and general outdoor lighting fixtures. The device is suitable for a range of automotive application environments, and is also resistant to transients and vibrations typically encountered in industrial and mobile systems. The integrated over-temperature protection and diagnostics functions also make the MAX16819ATT+T an ideal choice for lighting fixtures in harsh environments.

The MAX16819ATT+T is a highly integrated automotive grade LED driver designed to provide reliable performance in a variety of applications. It offers a wide range of features, including several advanced functionality options that make it particularly suitable for automotive and industrial applications. The device\'s robust construction and features make it an optimal choice for a range of LED-driven applications.