LP3942 datasheet(1/20 Pages) NSC

tên linh kiện	LP3942

Giải thích chi tiết về linh kiện	The Dual RGB LED Controller with 1.5x/2x Charge Pump and SPI Interface

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nhà sản xuất	NSC [National Semiconductor (TI)]

Trang chủ	http://www.national.com

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LP3942

The Dual RGB LED Controller with 1.5x/2x Charge Pump

and SPI Interface

General Description

The LP3942 is an integrated stand-alone RGB LED control-

ler with a high efficiency and low noise programmable 1.5x

and 2x charge pump. The RGB LEDs are controlled through

the low voltage SPI interface. RGB programmability allows

unique color and brightness control with both RGB outputs.

The color control has preselected color settings for color

blending. The LED current control is done using constant

current sinks that can be also used as switches. The non-

overlapping RGB output PWM control minimizes the input

noise.

See also: LP3931, LP3933 and LP3936 Lighting Manage-

ment Units

Features

n

Pre-regulated 1.5x and 2x charge pump with regulated

output (4.5V and 5.0V)

n

2 separately controlled PWM RGB LED drivers with

programmable color and brightness

n

Overlapping and non-overlapping RGB mode

n

Wide input voltage range 3V–5.0V

n

Output current up to 120 mA

n

Low voltage SPI interface

n

Programmable low current Standby mode

n

Tiny LLP24 package (5mm*4mm*0.8mm)

Applications

n

Cellular Phones, PDAs

Typical Application

20129201

PRELIMINARY

November 2004

DS201292

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Số phần tương tự - LP3942

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Texas Instruments	LP3941	1Mb / 34P	Cellular Phone Power Management Unit
National Semiconductor ...	LP3941A	779Kb / 32P	Cellular Phone Power Management Unit
National Semiconductor ...	LP3941LQ-A	779Kb / 32P	Cellular Phone Power Management Unit
Texas Instruments	LP3941LQ-A	1Mb / 34P	Cellular Phone Power Management Unit
National Semiconductor ...	LP3941LQA	779Kb / 32P	Cellular Phone Power Management Unit

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Mô tả tương tự - LP3942

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Maxim Integrated Produc...	MAX1707	793Kb / 15P	Light-Management IC with Efficient 1x/1.5x/2x Charge Pump for Backlight/Flash/RGB LEDs Rev 0; 7/05
Advanced Analogic Techn...	AAT3129	302Kb / 14P	High Efficiency 1X/1.5X/2X Charge Pump for RGB Color LED Applications
Advanced Analog Technol...	AAT3129	460Kb / 15P	High Efficiency 1X/1.5X/2X Charge Pump for RGB Color LED Applications 3129.2007.01.1.4
YOBON TECHNOLOGIES,INC.	YB1313	636Kb / 9P	1x/1.5x/2x Charge Pump for White LED Application
YOBON TECHNOLOGIES,INC.	YB1314	106Kb / 1P	120mA 1x/1.5x/2x Charge Pump for White LED
Advanced Analogic Techn...	AAT3129	460Kb / 15P	High Efficiency 1X/1.5X/2X Charge Pump for RGB Color LED Applications
Linear Technology	LTC3212	746Kb / 12P	RGB LED Driver and Charge Pump
Anpec Electronics Corop...	APW7008	318Kb / 21P	1X/1.5X/2x Charge Pump White LED Driver
	APW7000	300Kb / 18P	1X/1.5X/2x Charge Pump White LED Driver
	APW7008	309Kb / 22P	1X/1.5X/2x Charge Pump White LED Driver

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LP3942 bảng dữ liệu(PDF) 1 Page - National Semiconductor (TI)

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