AL5809-100QP1-7 Integrated Circuits (ICs)

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The AL5809-100QP1-7 is a compact, high-efficiency switch-mode power supply (SMPS) capable of powering up to 7 channels of low-power LEDs. It is an ideal choice for lighting applications such as display backlighting and general illumination. The device contains an on-board voltage regulator, which is designed to provide a constant output voltage despite input variations, as well as pulse-width modulation (PWM) control for dimming and brightness adjustment. In addition, the device employs a low-ripple switching topology to ensure low electromagnetic interference (EMI) and a low output noise.

Typically, a power supply circuit powered by an integrated controller supplies the output voltage needed to drive various devices, such as light-emitting diodes (LEDs). However, with the AL5809-100QP1-7, a single regulator is used to provide all the necessary output voltage levels for the different LED channels. This eliminates the need for multiple regulators, which can take up more space, consume more power, and dissipate more heat.

In addition to its compact size, the AL5809-100QP1-7’s main benefits are its efficiency and robustness. Its high-frequency switching topology provides an efficient operation over a wide input voltage range, and its robust protection circuits protect the device from over-current and over-temperature events. Its integrated noise filter provides stable and low-noise operations, making it ideal for applications where noise-sensitive systems are present.

Applications powered by the AL5809-100QP1-7 range from LED displays to LED backlighting and general illumination systems. The device has a low-ripple switching topology which eliminates the need for additional noise signature filters, and its low power consumption makes it suitable for energy efficient and high brightness applications.

The AL5809-100QP1-7 operates with a constant voltage source that is regulated by internal feedback loops. An external PWM signal is used to control the brightness of the LEDs connected to the device. When a low pulse-width-modulation is detected, the device limits the current and reduces the output voltage to adjust the brightness of the LED. In addition, over-current and over-temperature protection circuits are provided to ensure the safety of the device during operation.

The AL5809-100QP1-7 is an ideal choice for LED applications that require high efficiency, continuous operation, and high performance with low power consumption. The device’s high-frequency, low-ripple switching topology provides efficient operation over a wide input voltage range and its integrated noise filter provides stable and low-noise operations. Furthermore, its robust protection circuits protect the device from over-current and over-temperature events. With its low-power consumption and compact size, the AL5809-100QP1-7 is the perfect choice for powering LED displays, backlighting and general illumination systems.

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