With an operating voltage range of 4.5V to 60V, the AL5816Q supplies an output drive current of 15mA to control LED lights through an external BJT, delivering a constant current of a few mA up to 1.5A, or higher LED current if a MOSFET is used.
The combination of a high-input voltage and high-output drive current, coupled with a high-voltage PWM dimming feature, means automotive manufacturers can realize a significantly lower BOM for a wide range of automotive applications using the AL5816Q. The 5-pin SOT25 package requires very few external components and does not need a separate switching inductor. It features a high-voltage PWM input for LED light dimming.
The feedback pin operates at just 200mV, enabling the AL5816Q to control the LED drive current precisely while minimizing the drop-out voltage and reducing the LED system power dissipation, particularly when compared against traditional linear LED controllers.
The high-output drive current allows the AL5816Q to drive a single LED, an LED chain or multiple LED channels, as required by automotive manufacturers. The PWM dimming input accepts a signal operating at up to 50kHz. The device also features a number of protection features including input undervoltage lock-out and overtemperature shutdown.
The AL5816Q is available now in the SOT25 package.
Further information is available at https://www.diodes.com