AS1109-BSSU-Z

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The AS1109-BSSU-Z LED driver is a high-performance Color LED that consists of one or two P-Channel FETs that operate in parallel on a single switch. It can be used to control a wide variety of LED applications including automotive, medical, and industrial applications. The AS1109-BSSU-Z LED driver can provide a wide range of current and Voltage levels, from 0.3V to 50V and from 0.1A to 5A, with fast transient response.

The AS1109-BSSU-Z LED driver is ideal for high-power LED applications. It has an efficiency rating of up to 95%, with an input voltage range of 7V to 50V. The LED driver supports PWM dimming control, as well as continuous current dimming up to 30 kHz. Additionally, the AS1109-BSSU-Z LED driver features an integrated short-circuit protection and thermal shutdown function.

The working principle of the AS1109-BSSU-Z LED driver is based on the concept of parallel switching. The device is made up of two P-channel FETs that operate in parallel with each other. Each FET\'s current is proportional to the drain-source voltage that is applied. The current regulation is achieved through two pins of the IC which act as current regulators. These two pins are connected to the feedback from the output stage and to the input controlling system of the IC.

Once the voltage is applied, the current through the two FETs can be controlled. A low on-resistance is achieved by using two P-Channel FETs on the same switch, which ensures a low level of total control loss and high efficiency. The control pins of the IC then have a range of available output current levels. The AS1109-BSSU-Z LED driver can thus provide adjustable current levels, achieving up to 95% efficiency.

The AS1109-BSSU-Z LED driver has a wide application field, including automotive, medical, and industrial applications. It is ideal for automotive lighting and other high-power LED applications, where a high output current is needed. The device is also suitable for medical lighting and various industrial lighting applications. Furthermore, it can be used in many different applications such as LED displays, LED TVs, LED monitors, LED strips and LED street lighting.

In conclusion, the AS1109-BSSU-Z LED driver is an excellent choice for high-power LED applications. It provides adjustable output current levels, fast transient response and high efficiency operations. The device also features an integrated short-circuit protection and thermal shutdown function, making it a versatile and reliable solution for a wide range of applications.

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