AL5816W5-7 Integrated Circuits (ICs)

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AL5816W5-7 is a step-down LED Driver, which belongs to the Power Management Integrated Circuit (PMIC) – LED Drivers. AL5816W5-7 can effectively provide consistent and constant current to drive the LED lights, and at the same time it can optimize the system efficiency and provide an extended battery life. Therefore, AL5816W5-7 is widely used in many modern devices, such as computer monitors, laptop computers, automotive applications and off-grid LED lighting systems, etc.

Application Field

The AL5816W5-7 integrated LED driver is suitable for low power LED application, these including backlight for small displays, and interior and exterior lighting for automotive and advance lighting applications. This LED driver is compatible to many different voltages and lighting currents. The adjustable current range varies from 10mA to 200mA in 10mA step. With its PWM input, this allows the user to easily control the brightness of the LED light. A low drop voltage mode is also featured, which can reduce the voltage drop out and also improve the efficiency of the system.

Working Principle

The working principle of AL5816W5-7 is using a 2.5V reference voltage and a adjustable feedback current setting Resistor to decide the output current of the LED driver. This allows the user to precisely control the output current of the LED driver and ensure it is always consistent. The AL5816W5-7 also features an internal oscillator. This internal oscillator will perform a cyclic reset/forced-on operation whenever the voltage input is turned on or off. This greatly reduce the inrush current and also control the turn-on time of the circuit. To guarantee a safe protection on the circuit, the AL5816W5-7 added a thermal shutdown function. Whenever the internal temperature of the device gets too high, the internal thermal sensor will detect it and shut down the device. This will prevents any possible fault and adverse effects to components in the circuit.

Conclusion

In a nutshell, AL5816W5-7 is a highly efficient LED driver, which is suitable for many different application. With its adjustable feedback current setting Resistor and the internal oscillator, it allows the user to precisely control the output current of the LED driver and also ensuring a safe protection on the circuit. Therefore, AL5816W5-7 is widely used in many modern devices, such as computer monitors, laptop computers, automotive applications and other lighting systems. With this highly efficient LED driver , users can improve the system efficiency and provide extended battery life for their device.

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