AS1121-BQFT

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

PMIC (Power Management ICs) refers to the various management ICs set up in an integrated circuit for a particular application. LED Drivers are PMICs specifically designed to drive LED devices, providing protection and increasing efficiency of LED systems. These LED Drivers can be used either in dynamic (for continuously dimming LED devices) or static (for non-dimming LED devices) applications. AS1121-BQFT is an LED Driver IC specifically designed for static applications and is capable of providing up to 8mA of drive current, while having a low operating voltage of 12V. In this article, we will take a closer look at the AS1121-BQFT, its application field and its working principle.

The AS1121-BQFT is a fully integrated, low-power dissipative LED Driver IC. It incorporates an 8-bit analog DAC with a slew rate of 300KHz, along with voltage regulator and thermal protection. The device has an operating voltage range of 8V to 16V, making it suitable for a wide range of static applications. Its current-limiting feature makes it suitable for driving light source up to 20K LEDs with wide operating temperature range of -40°C to 125°C. In addition, the device is capable of sinking up to 8mA of drive current, making it ideal for powering LED backlighting and LED lighting applications.

The AS1121-BQFT can be used in various static applications, such as Backlighting for LCD displays, LED Street lighting, LCD TVs, digital signage displays, traffic systems, automotive lighting and many other applications. The board can be easily employed in conjunction with other components, including microcontrollers, to complete the LED lighting driver circuit. When used with a microcontroller, it can be programmed to adjust the brightness of the LED, allowing the user to customize the light intensity of the LED and adapt it to the desired requirements.

The AS1121-BQFT LED Driver IC is based on a self-biased PMOS topology. It requires the use of an external bypass capacitor to reduce the noise on the output, which can be programmed through the use of an external resistor and a logic low detect pin. The upper and lower threshold voltage of the bypass capacitor can be programmed using the adjustable ramp current generator, along with the integrated slew rate control. This allows the user to adjust the lighting intensity according to the external conditions and the desired level of illumination.

The AS1121-BQFT also features integrated thermal protection, which helps in mitigating thermal overload conditions in order to protect the device from getting damaged due to excessive heat generation. Its current limiting feature allows it to accurately regulate the current consumption of the LEDs, thereby prolonging the life of the LEDs. Furthermore, the device has an operating temperature range of -40°C to 125°C and is protected against short circuit, making it suitable for both industrial and commercial applications.

Overall, the AS1121-BQFT is an ideal choice for static LED Driver applications up to 8mA. Its low operating voltage range makes it a perfect fit for various LED applications, its current limiting feature helps in prolonging LED life, and its integrated bypass control circuit helps in adjusting the intensity of LED light. Its many features make it a great choice for static applications in various industries.

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