LP3933SL datasheet(1/18 Pages) NSC

tên linh kiện	LP3933SL

Giải thích chi tiết về linh kiện	Lighting Management System for Six White LEDs and Two RGB or FLASH LEDs

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LP3933

Lighting Management System for Six White LEDs and

Two RGB or FLASH LEDs

General Description

The LP3933 is a complete lighting management system

designed for portable wireless applications. It contains a

boost DC/DC converter, 4 white-LED drivers to drive the

main LCD panel backlight, 2 white-LED drivers for the sub-

LCD panel and two sets of RGB/FLASH LED drivers.

Both backlight drivers have 8-bit constant current drivers that

are separately adjustable and matched to 0.5% (typ.). The

RGB LED drivers are PWM-driven with programmable color,

intensity and blinking patterns. In addition, they feature a

FLASH function to support picture taking with camera-

enabled cellular phones.

An efficient magnetic boost DC/DC converter provides the

required bias for LEDs, operating from a single Li-Ion bat-

tery. The DC/DC converter output voltage is user program-

mable from 4.1V to 5.3V for adapting to different LED types

and for efficiency optimization. All functions are software

controllable through a SPI interface and 19 internal registers.

Features

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High Efficiency Programmable 300 mA Magnetic Boost

DC-DC converter

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2 separately controlled PWM RGB LED drivers with

programmable color, brightness, turn on/off slopes and

blinking patterns

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FLASH function with up to 6 outputs, each up to 120

mA

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4 constant current LED drivers with programmable 8-bit

adjustment (0 … 25 mA/LED)

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2 constant current LED drivers with programmable 8-bit

adjustment (0 … 25 mA/LED)

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Functions software controlled through SPI interface

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Additional LED on/off and dimming hardware control

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Programmable low current Standby mode

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Low voltage digital interface down to 1.8V

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Space efficient 32-pin thin CSP laminate package

Applications

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Cellular Phones

n

PDAs

Typical Application

20080505

March 2004

DS200805

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Số phần tương tự - LP3933SL

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
National Semiconductor ...	LP3931	399Kb / 17P	Dual RGB LED Driver with High Current Boost DC-DC Converter
	LP3931ISQ	399Kb / 17P	Dual RGB LED Driver with High Current Boost DC-DC Converter
	LP3931ISQX	399Kb / 17P	Dual RGB LED Driver with High Current Boost DC-DC Converter
	LP3936	520Kb / 20P	Lighting Management System for Six White LEDs and One RGB or FLASH LED
Texas Instruments	LP3936	1Mb / 30P	Lighting Management System for Six White LEDs and One RGB

More results

Mô tả tương tự - LP3933SL

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Maxim Integrated Produc...	MAX1561	245Kb / 10P	High-Efficiency, 26V Step-Up Converters for Two to Six White LEDs 19-2731; Rev 1; 10/03
National Semiconductor ...	LP3936	520Kb / 20P	Lighting Management System for Six White LEDs and One RGB or FLASH LED
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
Everlight Electronics C...	30-01UYC	182Kb / 4P	Fewer LEDs Required, Lowers Lighting System Cost
Maxim Integrated Produc...	MAX8647	265Kb / 15P	Ultra-Efficient Charge Pumps for Six White/RGB LEDs in 3mm x 3mm Thin QFN Rev 0; 4/07
Maxim Integrated Produc...	MAX8647_0709	265Kb / 15P	Ultra-Efficient Charge Pumps for Six White/RGB LEDs in 3mm x 3mm Thin QFN Rev 1; 9/07
Eutech Microelectronics...	EUP2561	453Kb / 9P	26V Step-Up Converters for Two to Six White LEDs
Maxim Integrated Produc...	MAX8879	389Kb / 16P	Charge Pump for Backlight/Flash/RGB LEDs with Safety Timer Rev 0; 9/08
Texas Instruments	LP3936	1Mb / 30P	Lighting Management System for Six White LEDs and One RGB
Texas Instruments	LED171596A	1Mb / 153P	96-LED Matrix Driver for RGB and White LEDs

More results

LP3933SL bảng dữ liệu(PDF) 1 Page - National Semiconductor (TI)

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