LP3942 datasheet(1/20 Pages) NSC

부품명	LP3942

상세설명	The Dual RGB LED Controller with 1.5x/2x Charge Pump and SPI Interface

PDF	20 Pages

Scroll/Zoom	100%

제조업체	NSC [National Semiconductor (TI)]

홈페이지	http://www.national.com

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1 / 20 page

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

www.national.com

유사한 부품 번호 - LP3942

제조업체	부품명	데이터시트	상세설명
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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유사한 설명 - LP3942

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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
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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
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LP3942 데이터시트(PDF) 1 Page - National Semiconductor (TI)

LP3942 데이터시트(HTML) 1 Page - National Semiconductor (TI)

유사한 부품 번호 - LP3942

유사한 설명 - LP3942

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