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A8435

Allegro MicroSystems
Part Number A8435
Manufacturer Allegro MicroSystems
Description High Efficiency Charge Pump White LED Driver
Published Apr 2, 2007
Detailed Description www.DataSheet4U.com A8435 High Efficiency Charge Pump White LED Driver Features and Benefits ▪ ▪ ▪ ▪ ▪ Proprietary ada...
Datasheet PDF File A8435 PDF File

A8435
A8435

Overview
www.
DataSheet4U.
com A8435 High Efficiency Charge Pump White LED Driver Features and Benefits ▪ ▪ ▪ ▪ ▪ Proprietary adaptive control scheme (1×, 1.
5×) Maximum efficiency, over 92% 0.
5% LED current matching 1 MHz operating frequency Flexible dimming control: ▫ Serial 11-level dimming, down to 5% ▫ PWM ▫ 2-bit parallel Drives up to 4 white LEDs 30 mA per LED 120 mA total continuous output Low input ripple and EMI Soft-start limits inrush current Short circuit protection Overvoltage protection Thermal shutdown protection Space-saving MLP-16 package: 3 × 3 mm footprint Very thin 0.
75 mm nominal height package Description The A8435 high efficiency charge pump IC offers a simple, low-cost white LED driver solution for portable electronics display applications.
Using a proprietary control scheme (1×, 1.
5×), the A8435 can output well-matched currents for up to 4 LEDs, while maintaining the highest efficiency over most of the Li-ion battery lifetime.
The A8435 accepts an input range of 2.
7 to...


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