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A8434

Allegro MicroSystems
Part Number A8434
Manufacturer Allegro MicroSystems
Description 6-Channel High Efficiency Charge Pump White LED Driver
Published Mar 29, 2007
Detailed Description www.DataSheet4U.com A8434 6-Channel High Efficiency Charge Pump White LED Driver Features and Benefits ▪ Proprietary ad...
Datasheet PDF File A8434 PDF File

A8434
A8434

Overview
www.
DataSheet4U.
com A8434 6-Channel High Efficiency Charge Pump White LED Driver Features and Benefits ▪ Proprietary adaptive control scheme (1×, 1.
5×, 2×) ▪ 0.
5% typical WLED current matching ▪ Drives up to 6 white LEDs ▫ Main display backlight (up to 6 WLEDs) ▫ Main display and sub display backlight ▫ Main display and low-current flash/torch ▪ 30 mA per WLED ▪ 2× serial dimming interfaces ▪ 320 mA charge pump capability ▪ Low EMI design and soft start function ▪ Short circuit, overvoltage, thermal shutdown protection ▪ 0.
75 mm nominal height (very thin profile), 3 × 3 mm footprint packages Description The A8434 high efficiency charge pump ICs offer a simple, low-cost WLED (white LED) driver solution for driving up to six WLEDs in various application configurations, either all six backlighting a single display, or for multiple displays, such as four WLEDs as the main display backlight, with the other two WLEDs used for backlighting a sub display or a low-current flash/torch.
Using a...


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