AL9910AS-13

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The AL9910AS-13 is an adjustable, constant current linear driver, specifically designed for driving high brightness LEDs (HBLEDs) in the lighting applications, making it an ideal power management integrated circuit (PMIC) for LED drivers. It is packed in a SOT26 package and consists of a voltage regulation loop, an on-chip MOSFET, and other components to optimize HBLED efficiency and simplify system design.

The AL9910AS-13 operates from an input voltage range of 2.7V to 5.5V and has an adjustable output current of up to 700mA and a power up to 3.8W. This device is a cost-effective and efficient alternative to discrete solutions for LED driver applications. It also provides an impressive level of accuracy and high performance up to 3.5A with a PWM dimming signal.

The AL9910AS-13 uses a simple, yet powerful architecture for fast, efficient and accurate operation. Its on-chip linear regulator provides a very stable, constant current output. This constant current output is regulated by the voltage between the reference pin and feedback pin through a simple feed-forward control loop. The input voltage is converted to a PWM signal, which is then fed to the gate driver of the on-chip MOSFET to generate the desired LED current.

The AL9910AS-13 also features a variety of protection functions to ensure safe operation. These include over-voltage protection (OVP), under-voltage protection (UVP), short-circuit protection (SCP), and over-temperature protection (OTP). This ensures that no damage is done to the device due to improper operation.

In summary, the AL9910AS-13 is an excellent choice for driving high brightness LEDs in lighting applications. It utilizes an efficient and simple architecture with an adjustable output current of up to 700mA and a power up to 3.8W. It has a number of protection features, making it one of the most reliable solutions available. The AL9910AS-13 is packaged in a SOT26 package, making it an ideal solution for LED driver applications.

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