AAT2848IDG-T1

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AAT2848IDG-T1 is a PMIC - LED Drivers that switch between buck and boost configuration to support a wide input voltage range. The device provides active current regulation, allowing the load to be maintained at a constant value while adjusting automatically to accommodate environmental temperature changes. Furthermore, it features a programmable frequency that can be programmed down to 250 kHz by using the external resistors to minimize the visible LED flicker. It also features active current foldback and transient protection, which protects the LED device in case of an unstable power supply or any other fault. The AAT2848IDG-T1 is ideal for applications where a constant LED brightness is desired.

The AAT2848IDG-T1 contains two buck converters and one boost converter to provide a wide input voltage range of 3.3V to 28V. The device also has an active current regulator and thermal shutdown protection, which senses the temperature inside the device and shuts it down to prevent any damage. The device also has overvoltage protection, which prevents the LED from burning out in case of a high voltage spike. Additionally, the device has an adjustable soft-start time to reduce input inrush current and an adjustable frequency to reduce the visible flicker of the LED device.

To ensure a constant LED brightness, the AAT2848IDG-T1 features active current regulation. The device measures the load current and adjusts the internal oscillator frequency accordingly to maintain a constant level of current. This keeps the LED at a constant brightness, regardless of environmental temperature changes. The programmable frequency also helps to minimize the visible flicker of the LED.

The AAT2848IDG-T1 also features active current foldback, which reduces the maximum current allowed to the LED in case of an overvoltage or any other fault condition. This prevents the LED from burning out due to excessive current. The foldback current has programmable limits for both the buck and boost converters. The AAT2848IDG-T1 also provides transient protection, which prevents the LED from burning out in case of extreme voltage spikes or swings.

The AAT2848IDG-T1 is ideal for applications requiring a constant LED brightness over a wide input voltage range. The device is also useful for applications where a minimal visible LED flicker is desired. The adjustable soft-start time prevents input current inrush, while the active current regulation and thermal shutdown features ensure a constant LED brightness and prevent damage due to high temperature.

In summary, the AAT2848IDG-T1 is a PMIC - LED Drivers device with a wide input voltage range and active current regulation to provide a constant LED brightness. It also has programmable frequency and active current foldback to reduce the visible LED flicker and protect the LED from burning out. The device is ideal for applications where a constant LED brightness is desired over a wide temperature range.

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