MAX13444EASA+T

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Interface - Drivers, Receivers, Transceivers: MAX13444EASA+T
The MAX13444EASA+T is an integrated part in the MAX13444 family of differential SPI-Plus transceiver solutions for mobile backlight applications. It provides a simple, space-saving interface for LCD backlight driver applications, ready for integration directly into a design. It is designed to drive up to 32 segments from four parallel segment lines.

Application Field

The MAX13444EASA+T provides simple SPICE-Plus bus transfers between LCD backlight driver ICs and user displays. Its ultra-low power core enables higher performance for longer battery life. The MAX13444EASA+T also features a built-in ambient light sensor that allows the backlight brightness to be adjusted automatically depending on the ambient light level. This allows the LCD backlight to be adjusted dynamically according to current user interface design requirements.

Working Principle

The MAX13444EASA+T supports a number of backlight drive modes, including pulse width modulation (PWM) mode, content adaptive backlight control (CABC) mode, and manual dimming control (also called segment mode) for driving either up to 32 segments or 24 segments (in the case of the MAX13444EASA+T).

PWM mode uses a digital pulse code to control the brightness of the backlight by changing the ratio of the active low period to the inactive period of the pulse. This provides higher energy efficiency and more accurate backlight control. CABC mode is used when the user display contains multiple images that may require different brightness levels. It works by analyzing the video content of the image being displayed and adjusting the backlight level accordingly. Finally, the segment mode allows driving of up to 32 segments using logic signals at the segment pins of the MAX13444EASA+T.

In addition to the above modes, the MAX13444EASA+T also supports a manual dimming control. It uses an SPI Bus plus dedicated dimming pins to manually control the backlight brightness. This provides a more accurate, precise backlight control.

The MAX13444EASA+T also offers a number of internal protection mechanisms and diagnostics that are especially useful in consumer products such as mobile phones and tablet PCs. This includes an overvoltage protection feature and built-in thermal protection that allows the MAX13444EASA+T to monitor the temperature of its internal circuitry and shut down when the temperature gets too high. It also provides an open-wire detection feature that monitors the power supply lines to detect any faulty wiring that could prevent the backlight from working.

Overall, the MAX13444EASA+T provides a simple, space-saving interface for LCD backlight driver applications. It is an integrated part in the MAX13444 family of differential SPI-Plus transceiver solutions that offer a number of backlight drive modes, built-in protection and diagnostics, as well as a built-in ambient light sensor.

The specific data is subject to PDF, and the above content is for reference