A8434 - 6-Channel High Efficiency Charge Pump White LED Driver
Allegro MicroSystems
General 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 ot
Key Features
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.
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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...
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ts ▪ 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.