Buck-boost power led driver

Description. The MAXA/MAXB are fully synchronous LED drivers that provide constant output current to drive high-power LEDs. The MAXA/MAXB integrate two 60mΩ power MOSFETs for synchronous operation, minimizing external components. Flexible configuration supports buck, inverting buck-boost, and boost conversion. LED Lighting Drivers Synchronous Buck and Buck-Boost LED Driver/DC-DC Converter1/5(1). The device rating also enables a simple solution for driving 3 to 4 WLEDs in buck boost configuration—a very common application requirement for automotive lighting applications. The ALT is designed to aid in EMC/EMI design by frequency dithering, soft freewheel diode turn-off, and well controlled switch node slew rates.

Buck-Boost LED Driver Reaches 98% Efficiency, Features Internal PWM Dimming and Spread Spectrum without Flicker by Keith Szolusha Download PDF Four-switch converters combine two converters (a buck and boost) into a single converter, with the obvious advantage of reduced solution size and cost, plus relatively high efficiency conversion. Buck LED Driver for 1-to-2 LEDs When Operating of Automotive Battery Applications ; Inverting Buck-Boost LED Driver for 3-to-5 LEDs When Operating from Automotive Battery Applications; Protection Features and Wide Temperature Range Increase System Reliability °C to +°C Operating Temperature Range. LED Lighting Drivers Synchronous Buck and Buck-Boost LED Driver/DC-DC Converter.

Analog Devices buck-boost LED drivers allow LED bias when the input voltage is either above or below the LED voltage. This is ideal in cases such as a. DC/DC buck-boost converter • Constant current output • Wide input voltage range • Efficiency up to 92% • Digital PWM and analog voltage dimming. This paper deals with a single-stage PFC (Power Factor Corrected) buck-boost converter based low power LED (Light Emitting Diode) lamp driver for general.