PCU9654PW,118

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PMIC - LED Drivers are integrated circuits that control the current flow in a light emitting diode. They are designed to provide the voltage and current to light up the LED at the desired level of brightness. The driver needs to be matched to the type of LED being used and the application in which it is used.

The PCU9654PW is one such driver designed to provide an efficient power supply solution for high brightness LED applications. This constant current LED driver has an 8-bit resolution and is designed to drive up to 118 LEDs. The power input range is from 4.5V to 65V and its output current can be measured up to 3A. It has a smart dimming feature which allows the LED to be dimmed without the need for external circuitry.

The PCU9654PW is well suited for applications such as LED backlight applications, LED scanners and LED signage among others. It has a high luminance conversion efficiency which allows for greater power savings. The wide power input range also allows for higher flexibility in the design.

The working principle of the PCU9654PW is based on the control of the output current of the LED. The chip utilizes a controlled linear voltage-to-current converter to convert the input voltage to continuously regulated output current. The output current is regulated by comparing the feedback voltage, generated by the current mirror circuit, with the internal reference voltage. When the current reaches its pre-set level, the output voltage is set to its pre-set level and the LED current is maintained within the desired range.

The PCU9654PW also has overload protection, over temperature protection and open circuit protection. This ensures greater safety and reliability of the design. The implementation of the chip’s features is very simple, thereby allowing for quick and easy implementation.

In summary, the PCU9654PW is a cost-effective, high performance and reliable LED driver, suited for a variety of lighting applications. It has a wide power input range and its output current can be up to 3A and its smart dimming feature enables lower power consumption and greater flexibility when designing with LEDs.

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