AS3665-ZWLT-500

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AS3665-ZWLT-500, a Next Generation LED Driver, is an important member of a new class of power management integrated circuits (PMICs) specifically designed for LED driver applications. Developed by Advanced Semiconductor Corp., it is a full integration of the analog and power functions required to drive LEDs in Illumination applications, while providing excellent performance, accuracy, and flexibility.

The AS3665-ZWLT-500 can drive up to eight strings of LEDs, configured to operate in series, that can be connected directly to the input voltage, thereby reducing component count and component cost. The design uses ProMotion Technology, an advanced feature that allows for dynamic driver control of the LED string to adjust current levels, as well as dimming functions. This enables the user to achieve optimal performance from their LEDs, while also extending their lifespan and providing energy savings.

The LED driver includes the required components such as a high-performance current-source Driver IC and a full-bridge DC/DC converter, allowing for the control and power conversion of LEDs. Furthermore, the product boasts advanced dimming options, including pulse width and voltage modulation, both of which enable lower power consumption and higher efficiency. The device also can be used in conjunction with remote controls to create a more user-friendly experience, allowing users to personalize brightness and color.

The AS3665-ZWLT-500’s working principle is based on the concept of LED current regulation. A control signal is used to adjust the LED current, and the circuit then adjusts the LED current according to the digital signal provided. This process allows the LED driver to maintain consistent LED current while the LED is operating. To ensure accuracy and proper performance, the LED driver is calibrated to the LED;s exact current rating.

The AS3665-ZWLT-500 provides various protection features, such as over-voltage protection and under-voltage protection, as well as thermal shut-down, over-temperature protection, and short-circuit protection. This helps to prevent the LEDs from being damaged or destroyed due to extreme conditions. The driver is also capable of detecting open and short circuits, and will automatically shut off or adjust the current accordingly to protect the LEDs.

In addition to the various protection features, the driver also allows for adjustable output current, enabling the user to set the driver current to between 30mA and 500mA, depending on their application. The device also supports adjustable dimming via an external dimming interface. This allows the user to easily adjust the intensity of the LED lights, as well as the color, thus providing a personalized approach to lighting.

The AS3665-ZWLT-500’s application field is primarily within the illumination industry, where it is used to control the current and dimming of the LEDs. It can be used in a range of lighting applications, including architectural lighting, theater lighting, street lighting, and automotive lighting, as well as a variety of other specialized applications including illumination in medical and healthcare settings.

The AS3665-ZWLT-500 is an ideal solution for applications requiring a cost-effective, reliable, and efficient LED driver. Its high integration and flexibility, along with its advanced safety features, makes it the ideal LED driver for a wide range of LED lighting applications.

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