LX27905ID-TR

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The LX27905ID-TR is designed specifically for LED backlighting applications. It is a high efficiency, low noise, and low cost backlighting solution ideal for consumer and industrial applications. This device is a PWM-based constant current LED driver IC that is suitable for full dimming, blurring dimming, and level switching dimming. It can be used in a variety of LED products such as, LCD monitors, notebook PCs, smartphones, tablets, televisions, digital signage displays, and automotive lighting applications.

The LX27905ID-TR comprises two functional blocks: a high-performance 3.3V/0.6 amp constant current control circuit and a low-noise, low-power consumption, low-voltage input PWM driver circuit. The LX27905ID-TR can be configured with a single or dual-channel PWM input. It offers up to 7:1 dimming ratio, wide dimming frequency range (2 kHz to 20 kHz), fast response time (300 ns overdrive time for full dimming to 1/8 duty cycle at 2 kHz), and a high switching frequency (50 MHz). It also features over temperature protection and automatic current limit protection.

The working principle of the LX27905ID-TR is as follows: Firstly, it receives the PWM signal from a control source and converts it into a high-frequency PWM signal. This signal is then modulated to generate a constant current output to the LED devices. The LX27905ID-TR also utilizes an advanced dimming algorithm that allows it to dim LEDs quickly, accurately and with minimal distortion.

The LX27905ID-TR provides many advantages over other LED backlighting solutions. It offers low power consumption, fast response times, and wide dimming range. It is also suitable for a variety of weak light source LED backlighting applications. Furthermore, it is simple to configure, with easy to use configuration software, and it features low EMI emission.

The LX27905ID-TR is ideal for a wide range of LED backlighting applications in consumer and industrial products. It is designed to provide a cost-effective and efficient solution for LED dimming and backlighting applications.

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