Datasheet Diodes AL8861Q

AL8861Q
HIGH EFFICIENCY 40V 1.5A
AUTOMOTIVE GRADE BUCK LED DRIVER NEW PRODUCT Description Pin Assignments
(Top View) The AL8861Q is a hysteresis mode DC-DC step-down LED driver,
designed for driving single or multiple series of the connected LEDs
efficiently from a voltage source higher than the LED voltage. The
device can operate with an input supply from 4.5V to 40V and provide
an externally adjustable output current up to 1.5A for MSOP-8EP
package. Depending upon supply voltage and external components,
this converter can provide up to 40W of output power. ISENSE 1 GND 2 The soft-start time can be adjusted by an external capacitor from the
VSET pin to the ground. Applying a voltage of 0.2V or lower to the
VSET pin can turn off the output and make the device enter into
standby state with low power consumption. VIN 7 N/C EP The AL8861Q integrates the power switch and a high-side output
current sensing circuit, which uses an external resistor to set the
nominal average output current.
Dimming can be realized by applying an external control signal to the
VSET pin. The VSET pin will accept either a DC voltage signal or a
PWM signal. 8 GND 3 6 LX VSET 4 5 LX MSOP-8EP Applications

 Automotive Interior LED Lamps
Automotive Exterior LED Lamps The AL8861Q is qualified to AEC-Q100 Grade 1 and is automotive
grade to support PPAPs. Features
 …