A6268 - Allegro MicroSystems

A6268 Automotive High Current LED Controller

The A6268 is a DC-to-DC converter controller, providing a programmable constant current output for driving high power LEDs in series. Driving the LEDs in series ensures identical currents and uniform brightness. For automotive applications, optimum performance is achieved when driving up to 15 LEDs at currents up to 1 A. The A6268 provides a cost-effective s.

Features

▪ AEC-Q100 Grade 0 Automotive Qualified ▪ Constant current LED drive ▪ 5 to 50 V supply ▪ Boost or buck-boost modes ▪ Drives up to 15 LEDs in series ▪ Programmable switching frequency 100 to 700 kHz ▪ Open LED overvoltage indication and protection ▪ Single and multiple LED short indication ▪ LED short to ground and supply protection ▪ PWM dimming control ▪ 10 μA shutdown current including LED leakage APPLICATIONS ▪ Automotive high-power LED lighting systems ▪ Fog lights, reversing lights, daytime running lights ▪ Headlights PACKAGE: 16-pin TSSOP with exposed thermal pad (suffix LP) Not to scal.