FAN5622集成電路（IC）的LED驅(qū)動器規(guī)格書PDF中文資料

FAN5622屬于集成電路（IC）的LED驅(qū)動器。由安森美半導體公司制造生產(chǎn)的FAN5622LED 驅(qū)動器器件屬于 LED 驅(qū)動器電源管理集成電路 (PMIC) 系列，可通過標稱固定電壓的電源為負載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類似產(chǎn)品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通常可對器件工作點進行外部控制，可在照明應用中用于實現(xiàn)調(diào)光功能。

Description

The FAN5622, FAN5624, and FAN5626 are two?, four?, and

six?channel current?sink linear LED drivers used to backlight the

main LCD displays or keypads in mobile electronics, such as cellular

phone handsets.

A very low dropout of 50 mV allows driving LEDs without any

inductors or switch capacitors. The brightness levels of the LED

outputs are programmed through single?wire digital control interface.

The user can program 32 linear dimming steps and turn on and off the

LEDs through this interface by applying digital pulses.

The FAN562x family of linear LED drivers provides high efficiency

due to the low drop?out voltage of the LED driver. Good matching

between different channels of LED output is provided across the entire

32 dimming steps. These LED drivers also integrate short circuit,

under?voltage, and thermal protection to ensure for a more robust

solution.

The FAN5622, FAN5624, and FAN5626 are available in very small

form?factor packages: 6?pin Super SOT23, 10?lead UMLP, and

10?lead MicroPak MLP, respectively.

Features

? Family of Three Linear Current?Sink LED Drivers that Support 2, 4,

or 6 LED Outputs

? Current Sink Driver for Each LED Output:

? 30 mA Maximum Output Current

? 50 mV Drop?out at 15 mA IOUT

? Better than 3 Matching between Channels

? External RSET

? Single?Wire Digital Control Interface for Easy Programming

? 32 Linear Steps of Dimming Control

? Less than 1 A Shutdown Current

? Short?Circuit, Under?Voltage, and Thermal Protection

? Wide Input Voltage Range: 2.7 to 5.5 V

? Small Form?Factor Packages:

? These are Pb?Free Devices

? FAN5622: 6?Pin Super SOT23

? FAN5624: 10?Lead 1.4x1.8x0.55 mm UMLP

? FAN5626: 10?Lead 1.6x2.1x0.55 mm MicroPak MLP

Applications

? Mobile Handsets

? Mobile Internet Devices

? PMP and MP3 Players

? LCD Modules