LM3501TL-16/NOPB Integrated Circuits (ICs)

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The LM3501TL-16/NOPB is an integrated LED driver, which is part of power management integrated circuits (PMICs) with LED drivers. Using a constant current mode of drive, the LM3501TL-16/NOPB can drive 1-4 strings of LEDs in the range of 20mA-95mA with accuracy that is better than ±10%. The LM3501TL-16/NOPB also has built-in thermal and LED open/short-circuit protections.

The LM3501TL-16/NOPB offers a wide variety of applications in the consumer electronics space. It is suitable for indoor and outdoor applications in cell phone flash, digital still cameras, video, projectors, consumer electronics, portable devices, automotive and medical. The LM3501TL-16/NOPB also offers a small and cost-effective solution for creating high power LED lighting systems.

The LM3501TL-16/NOPB operates with a buck-boost topology to maintain a constant current across the LEDs. This helps to prevent current hogging, which is a common issue in LED systems, since a single high current LED can overtake the current from the rest of the LEDs and cause a voltage drop in the system. This can cause degradation of the LEDs in the system and lead to significantly lower light output.

The LM3501TL-16/NOPB can be driven from a variety of input voltage sources such as Li-ion batteries, alkaline batteries, and standard wall adapters. The device can also be used to power a variety of LEDs such as those for automotive, backlight, decorative, and signage applications. It is supported by the largest selection of integrated digital dimming algorithms, including pulse width modulation (PWM) and Dim-to-Drive.

The LM3501TL-16/NOPB optimizes the efficiency of the system by using a combination of internal digital and analog circuitry. The LM3501TL-16/NOPB continuously monitors the current through the LEDs and compares it to the output current programmed by the user. Based on this comparison, the LM3501TL-16/NOPB adjusts the output voltage and current to maintain LED current within the programmed range. The features of the LM3501TL-16/NOPB enable designers to optimize the system for the lowest possible power consumption and achieve high efficiency. The device also incorporates an enable pin, which can be used to enable/disable the device.

The LM3501TL-16/NOPB also has an adjustable over voltage protection circuit, which helps to protect the system if high voltage is applied. The device also has high noise immunity due to its low quiescent current and low peak to peak input voltage ripple. The LM3501TL-16/NOPB also features a wide temperature range of -40°C to +125°C for high reliability applications.

The combination of a small footprint, wide input range and high efficiency makes the LM3501TL-16/NOPB suitable for a wide range of LED lighting applications. It is very easy to set up and use, allowing designers to quickly configure a constant current LED drive system. The device also has numerous integrated protection features, which make it ideal for reliable operation in harsh environments.

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