LC5521D

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

The LC5521D is a PMIC (Power Management IC) - LED Drivers product. It is specifically designed to address the requirements of low-voltage serial input bias LEDs. The device is fully self-contained and includes all of the features necessary to drive one or more LEDs from a single serial input. This highly efficient and cost-effective solution eliminates the need for discrete components in many applications.

The LC5521D is a DC-DC fixed frequency, step-up converter with a static output voltage that is dependent upon the input voltage and load current. It is powered by an internal oscillator and utilizes anintegrated switch to provide a regulated high-voltage output under various input and load conditions. The device includes internalover-voltage and over-current protection, as well as a sleep-mode feature to reduce standby power consumption.

The main application field of the LC5521D is LED illumination. It can be used for backlighting and edgelighting applications such as LCDs, LED billboards, elevator automations, traffic signaling and accent lighting. The device is designed with minimal parts for easy assembly and is ideal for drivingsigns, displays and LCD backlighting.

The working principle of the LC5521D can be explained as follows. When the device is powered on, the internal oscillator starts and a voltage that is higher than the input voltage is generated across the integrated switch. This switch in turn switches the input power to an output stage which includes an output current regulator. The output current regulator adjusts the duty cycle of the switch to achieve the desired output current. The output voltage is then regulated by an output voltage regulator which adjusts the switching frequency accordingly.

The LC5521D has several features and benefits that make it attractive to many applications. The device is extremely efficient, with a typical efficiency of ≥85%. It also has a wide input voltage range, allowing it to be used in applications ranging from 1.8V to 18V, enabling it to address a wide range of input sources. Additionally, the device is designed for low ripple on the output voltage, ensuring that LEDs can be illuminated with consistent brightness and color. The device also features sleep-mode operation, which reduces power consumption in standby mode.

The LC5521D is a highly versatile PMIC - LED Driversproduct that offers an all-in-one solution for LED applications. It offers a wide range of features, including a static output voltage, integrated switch, over-voltage and over-current protection, and an integrated sleep-mode feature. Additionally, the device offers high efficiency, wide input voltage range, and low ripple on the output voltage, making it an ideal choice for LED lighting applications.

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