ADM8843開發(fā)板套件編程器的評估板-LED驅(qū)動器規(guī)格書PDF中文資料

ADM8843屬于開發(fā)板套件編程器的評估板-LED驅(qū)動器。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的ADM8843評估板 - LED 驅(qū)動器LED 驅(qū)動器評估板是帶有元器件的電路板，用于提供特定電路或器件的工作實(shí)例。該系列評估板提供一個 LED 驅(qū)動器實(shí)例，用于可調(diào)節(jié)閃爍、模擬亮度、背光、雙極開關(guān)、升壓轉(zhuǎn)換器、亮度控制、相機(jī)閃光燈、可調(diào)光、恒流和 RGB 控制，以及更多其他應(yīng)用。

GENERAL DESCRIPTION

The ADM8843 uses charge pump technology to provide the power to drive up to four LEDs. The LEDs are used for backlighting a color LCD display that has regulated constant current for uniform brightness intensity. The main display can use up to three LEDs, and the sub display uses one LED. The CTRL1 and CTRL2 digital input control pins control the shutdown operation and the brightness of the main and sub displays.

FEATURES

Drives 4 LEDs from a 2.6 V to 5.5 V (Li-Ion) input supply

1×/1.5×/2× fractional charge pump to maximize

power efficiency

0.3 typical LED current matching

Up to 88 power efficiency over Li-Ion range

Powers main and sub display LEDs with individual shutdown

Package footprint only 9 mm2 (3 mm × 3 mm)

Package height only 0.75 mm

Low power shutdown mode

Shutdown function

Soft start limiting in-rush current

APPLICATIONS

Cellular phones with main and sub displays

White LED backlighting

Camera flash/strobes and movie light applications

Micro TFT color displays

DSC

PDAs