ALED6000PHTR STMicroelectronics

ALED6000 Datasheet Automotive 3 A single channel LED driver with integrated DC-DC converter Features AEC-Q100 grade 1 qualified Up to 3 A DC output current HTSSOP16 4.5 V to 61 V operating input voltage R = 250 m typ. DS(on) Adjustable f (250 kHz - 1.5 MHz) SW Dimming function with dedicated pin Low I shutdown (10 A typ. from VIN) Q Low I operating (2.4 mA typ.) Q 3.2% output current accuracy Synchronization Enable with dedicated pin Adjustable soft-start time Adjustable current limitation Low-dropout operation (12 s max.) VBIAS improves efficiency at light load Auto recovery thermal shutdown Applications Product status link Automotive exterior lighting ALED6000 Daytime running lights High, low beam and fog lights Device summary Position lights / blinkers Order code ALED6000PHTR Package HTSSOP16 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 switch- over 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. DS13018 - Rev 4 - October 2021 www.st.com For further information contact your local STMicroelectronics sales office.ALED6000 Application schematic 1 Application schematic Figure 1. Application schematic DIM SYNCH DIM VIN VIN VBIAS VIN BOOT CBOOT ALED6000 VCC L VLED+ LX EN LX CIN SS FB COUT CF FSW RF RU ILIM GND TP COMP VLED- CVCC CSS D CP RSNS GND GND DS13018 - Rev 4 page 2/45