Analog Devices Inc.

The ADM8845 uses charge pump technology to provide thepower required to drive up to six LEDs. The LEDs are used forbacklighting a color LCD display, having regulated constant current for uniform brightness intensity. The main display canhave up to four LEDs, and the sub display can have one or two LEDs. The digital CTRL1 and CTRL2 input control pins controlthe shutdown operation and the brightness of the main and subdisplays.To maximize power efficiency, the charge pump can operate ina 1?, 1.5?, or 2? mode. The charge pump automaticallyswitches between 1?/1.5?/2? modes, based on the input voltage,to maintain sufficient drive for the LED anodes at the highestpower efficiency. Improved brightness matching of the LEDs is achieved by afeedback pin to sense individual LED current with a maximum matching accuracy of 1%.Applications Cellular phones with main and sub displays White LED backlighting Camera flash/strobes and movie lights Micro TFT color displays DSC PDAs

* $152.01 - * $181.22
Distributor SKU Stock MOQ 1 10 50 100 1000 10000 Purchase
DigiKey ADM8845EB-EVALZ-ND 0 $192.78 $192.78 $192.78 $192.78 $192.78 $192.78 Buy
Analog Devices Inc ADM8845EB-EVALZ $177.71 $177.71 $177.71 $177.71 $177.71 $177.71 Buy
Arrow North American Components ADM8845EB-EVALZ 0 1 $140.46 $140.46 $140.46 $140.46 $140.46 $140.46 Buy
element14 APAC ADM8845EB-EVALZ 1 * $181.22 * $181.22 * $181.22 * $181.22 * $181.22 * $181.22 Buy
Farnell ADM8845EB-EVALZ 1 * $152.01 * $152.01 * $152.01 * $152.01 * $152.01 * $152.01 Buy
Mouser Electronics 584-ADM8845EB-EVALZ 0 1 $202.30 $202.30 $202.30 $202.30 $202.30 $202.30 Buy
Verical Marketplace ADM8845EB-EVALZ 13 1 $164.04 $164.04 $164.04 $164.04 $164.04 $164.04 Buy