Part Details for MAX191 by Maxim Integrated Products
Overview of MAX191 by Maxim Integrated Products
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Part Details for MAX191
MAX191 CAD Models
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Reference Designs related to MAX191
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Driving LEDs in Battery-Operated Applications: Controlling Brightness Power Efficiently
White light-emitting diode (WLED) drivers provide high efficiency and brightness matching for LCD backlighting in displays. To control brightness, these drivers regulate current going into LEDs that are arranged in either serial or parallel configuration. Charge pumps drive parallel LEDs whose currents are regulated with individual regulators or simple ballast resistors. Inductor-based converters deliver current to a string of LEDs, inherently equal. Both configurations aim to drive LEDs efficiently for cell phones, PDAs, and digital still cameras.