AL8807B PDF Datasheet


Please enter the part number you wish to PDF download in the search bar.


scroll

Description

This is HIGH EFFICIENCY 36V 1.3A PWM DIMMABLE BUCK LED DRIVER. AL8807B HIGH EFFICIENCY 36V 1.3A PWM DIMMABLE BUCK LED DRIVER Description The AL8807B is a step-down DC, DC converter designed to drive LEDs with a constant current. The device can drive up to 9 LEDs, depending on the forward voltage of the LEDs, in series from a voltage source of 6V to 36V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The AL8807B switches at frequency up to 1MH- with controlled rise and fall times to reduce EMI. This Pin Assignments (Top View) SET GND GND CTRL MSOP-8EP VIN N, C SW SW NEW PRODUCT allows the use of small size external components, hence minimizing the PCB area needed. Maximum output current of AL8807B is set via an external resistor connected between the VIN and SET input pins. Dimming is achieved by applying a PWM signal at the CTRL input pin. An input voltage of 0.4V or lower at CTRL switches off the output MOSFET simplifying PWM dimming. Features .