PLDS60-D-277DA

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LED (Light Emitting Diode) drivers are essential components of LED lighting systems, providing power and current control to drive the LED circuit. Different LED driver circuits may be required depending on the application, but a common choice is the Suitable for PLDS60-D-277DA.

The PLDS60-D-277D is a LED driver, designed to drive up to 8 strings of LEDs in parallel, each string up to 50 LEDs in series. It is a highly efficient, single-stage, isolated circuit, offering operating reliability and improved system lifetime. It is suitable for backlighting, signage and consumer LCD/LCDTV applications.

PLDS60-D-277DA is designed to be operated open-loop, meaning that it does not need a feedback loop to regulate voltage and current levels. The LED strings are connected in parallel, so the same voltage is applied across each string. One of the main benefits of the PLDS60-D-277D is its high efficiency at multiple input and output voltage levels, enabling it to be used over a wide range of applications, including small, low-power products such as hand-held electronics. It also features a high PWM dimming ratio making it suitable for applications requiring low light levels.

The circuit is designed using a Buck Converter topology, with output voltage and current set by an external voltage divider and current sensing resistor. The driver is controlled using an external PWM signal, which enables it to dynamically adjust the output current according to the input signal, providing efficient linear regulation of both voltage and current.

It also features power factor compensation, which allows the LED driver to achieve high power factor even with load variations. This helps to reduce system size, cost and complexity by eliminating the need for additional components and circuits. The PLDS60-D-277D operates over a wide input voltage range of 90-264VAC, making it suitable for most applications.

It is approved to UL8750 and is designed for applications requiring a high level of reliability with long operational life. It is rated for up to 8W with up to 50V output voltage and current up to 1A. It features open-loop control with power factor compensation, and a wide PWM dimming ratio, making it ideal for LED backlighting, signage, and consumer LCD/LCDTV applications.

In conclusion, the PLDS60-D-277D is a high efficiency, single stage, isolated LED driver circuit designed for backlighting, signage, and consumer LCD/LCDTV applications. It is able to provide reliable, efficient performance with power factor correction over a wide input voltage range, and its wide PWM dimming ratio offers an optimal light level for every application.

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