AAT1401IUQ-T1

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The Power Management Integrated Circuit (PMIC) AAT1401IUQ-T1 is a high performance, energy efficient device specifically designed to operate as a single-channel LED driver. The AAT1401IUQ-T1 can effectively drive single strings of LEDs in a variety of configurations including linear, boost, and buck-boost topologies while providing superior dimming performance. Additionally, its low input voltage capability makes it well-suited to be used in portable applications such as digital cameras and mobile devices.

The AAT1401IUQ-T1 is specifically designed to drive constant current LEDs wherever thermal stability and optical regulation are critical requirements. The device is designed for both indoor and outdoor lighting applications, providing superior dimming performance, and a wide range of LED configurations, making it suitable for a variety of LED illumination products. The AAT1401IUQ-T1 is capable of providing dimming ratios of up to 1:10 while maintaining a constant current accuracy of ±2%.

The AAT1401IUQ-T1 has an adjustable constant current output that is adjustable through an external resistor, allowing it to support different types of LEDs and different lighting configurations. The device also has an internal over-current protection circuit which will shut down the output current if the current sensing resistor is shorted. This ensures that the LEDs are not damaged and that the maximum power dissipation is not exceeded.

The AAT1401IUQ-T1 uses an external feedback resistive divider to adjust the current level. This allows the user to select a current level that is suitable for the specific LED being driven. The device also supports wide input voltage (from 2.7V to 5.5V) for driving single strings of LEDs. This allows the device to be used in a range of applications, including portable equipment such as digital cameras and mobile devices.

The AAT1401IUQ-T1 features a shutdown mode that allows the user to save power when the LED is not in use. The device will automatically enter shutdown mode when the enable pin is brought low and will remain in this mode until the enable pin is brought high. This feature can help to reduce power consumption and is essential in portable applications.

The AAT1401IUQ-T1 also features an adjustable soft-start and dimming current feature. This feature allows the user to fade-in the LED when it is first turned on, or to gradually decrease the LED current when dimming is desired. This feature helps to reduce the in-rush current and is especially useful for LED dimming applications.

In summary, the AAT1401IUQ-T1 is a high performance, energy efficient device designed for both indoor and outdoor lighting applications. It can effectively drive single strings of LEDs in a variety of configurations including linear, boost, and buck-boost topologies while providing superior dimming performance. The AAT1401IUQ-T1 features an adjustable constant current output that is adjustable through an external resistor, an internal over-current protection circuit, and an adjustable soft-start and dimming current feature, making it an excellent choice for any LED illumination product.

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