Features

• AEC-Q100 grade 1 qualified

• Up to 3 A DC output current

• 4.5 V to 61 V operating input voltage

• RDS(on) = 250 mΩ typ.

• Adjustable fSW (250 kHz - 1.5 MHz)

• Dimming function with dedicated pin

• Low IQ shutdown (10 μA typ. from VIN)

• Low IQ operating (2.4 mA typ.)

• 3.2 output current accuracy

• Synchronization

• Enable with dedicated pin

• Adjustable soft-start time

• Adjustable current limitation

• Low-dropout operation (12 μs max.)

• VBIAS improves efficiency at light load

• Auto recovery thermal shutdown

Description

The ALED6000 is a step down monolithic switching regulator designed to source up

to 3 A DC current for high power LED driving. The wide input voltage range makes

the ALED6000 the ideal choice for automotive systems. The 250 mV typical RSENSE

voltage drop enhances the efficiency performance. Digital dimming is implemented

by driving the dedicated DIM pin.

The adjustable current limitation, designed to select the inductor RMS current

accordingly with the nominal output LEDs current, and the switching frequency

adjustability make the size of the application compact. Pulse-by-pulse current

sensing, improved by digital frequency scaling, implements an effective constant

current protection over the different application conditions. The embedded switchover

feature on the VBIAS pin maximizes the efficiency. Multiple devices can

be synchronized sharing the SYNCH pin to prevent beating noise in low noise

applications and the input current RMS value to be reduced.

Applications

• Automotive exterior lighting

• Daytime running lights

• High, low beam and fog lights

• Position lights / blinkers