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參數資料
| 型號： | LP3933 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Lighting Management System for Six White LEDs and Two RGB or FLASH LEDs |
| 中文描述： | 照明管理系統6個白光LED和RGB或兩個閃光LED |
| 文件頁數： | 1/18頁 |
| 文件大?。?/td> | 406K |
| 代理商： | LP3933 |
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
n
High Efficiency Programmable 300 mA Magnetic Boost
DC-DC converter
n
2 separately controlled PWM RGB LED drivers with
programmable color, brightness, turn on/off slopes and
blinking patterns
n
FLASH function with up to 6 outputs, each up to 120
mA
n
4 constant current LED drivers with programmable 8-bit
adjustment (0 … 25 mA/LED)
n
2 constant current LED drivers with programmable 8-bit
adjustment (0 … 25 mA/LED)
n
Functions software controlled through SPI interface
n
Additional LED on/off and dimming hardware control
n
Programmable low current Standby mode
n
Low voltage digital interface down to 1.8V
n
Space efficient 32-pin thin CSP laminate package
Applications
n
Cellular Phones
n
PDAs
Typical Application
20080505
March 2004
L
2004 National Semiconductor Corporation
DS200805
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LP3933SL | Lighting Management System for Six White LEDs and Two RGB or FLASH LEDs |
| LP3933SLX | Lighting Management System for Six White LEDs and Two RGB or FLASH LEDs |
| LP3936 | Lighting Management System for Six White LEDs and One RGB or FLASH LED |
| LP3936SL | Lighting Management System for Six White LEDs and One RGB or FLASH LED |
| LP3936SLX | Lighting Management System for Six White LEDs and One RGB or FLASH LED |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LP3933A WAF | 制造商:Texas Instruments 功能描述: |
| LP3933SL | 制造商:Texas Instruments 功能描述:LIGHTING MANAGEMENT IC POWERWISE |
| LP3933SL/NOPB | 功能描述:IC LED DRVR WT/RGB BCKLGT 32TCSP RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅動器 系列:- 標準包裝:1 系列:- 恒定電流:- 恒定電壓:- 拓撲:PWM，切換式電容器（充電泵） 輸出數:1 內部驅動器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:642kHz 電源電壓:2.7 V ~ 5.5 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應商設備封裝:10-VSON 包裝:剪切帶 (CT) 工作溫度:-30°C ~ 85°C 產品目錄頁面:1371 (CN2011-ZH PDF) 其它名稱:BD1603NUV-E2CT |
| LP3933SLX | 功能描述:IC LED DRVR WT/RGB BCKLGT 32TCSP RoHS:否 類別:集成電路 (IC) >> PMIC - LED 驅動器 系列:- 標準包裝:1 系列:- 恒定電流:- 恒定電壓:- 拓撲:PWM，切換式電容器（充電泵） 輸出數:1 內部驅動器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:642kHz 電源電壓:2.7 V ~ 5.5 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應商設備封裝:10-VSON 包裝:剪切帶 (CT) 工作溫度:-30°C ~ 85°C 產品目錄頁面:1371 (CN2011-ZH PDF) 其它名稱:BD1603NUV-E2CT |
| LP3936 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Lighting Management System for Six White LEDs and One RGB or FLASH LED |
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