參數(shù)資料
型號(hào)： LP3950SL
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 顯示驅(qū)動(dòng)器
英文描述： Color LED Driver with Audio Synchronizer
中文描述： LED DISPLAY DRIVER, QCC32
封裝： 4.50 X 5.50 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, CSP-32
文件頁(yè)數(shù)： 18/31頁(yè)
文件大?。?/td> 1085K
代理商： LP3950SL
RGB LED PWM Control
(Note 17) (Continued)
ROFF[3:0]
GOFF[3:0]
BOFF[3:0]
ROFF[3:0]
GOFF[3:0]
BOFF[3:0]
OFF sets the beginning time of the turn-off slope. Off-time is relative to blinking cycle length in the same
way as on-time.
If
ON = 0, OFF = 0
and
RGB_PWM = 1
, then RGB outputs are continuously on (no blinking), the DUTY
setting controls the brightness and the SLOPE control is ignored.
If ON and OFF are the same, but not 0, RGB outputs are turned off.
CYCLE sets the blinking cycle: [000] for 0.25s, [001] for 0.5s, [010] for 1.0s, [011] for 2.0s. and [1XX] for
4.0s CYCLE effects to all RGB LEDs.
Enable for R1 switch
Enable for G1 switch
Enable for B1 switch
Enable for R2 switch
Enable for G2 switch
Enable for B2 switch
Master Switch for both RGB drivers:
RGB_START = 0
→
RGB OFF
RGB_START = 1
→
RGB ON, starts the new cycle from t = 0
RGB_PWM = 0
→
RSW, GWS and BSW control directly the RGB outputs (on/off control only)
RGB_PWM = 1
→
Normal PWM RGB functionality (duty, slope, on/off times, cycle)
Flash mode enable control for RGB1 and RGB2. In the flash mode (EN_FLASH = 1) RGB outputs are
PWM controlled simultaneously, not in 3-phase system as in the normal mode.
xx_PWM = 0
→
External PWM control from PWM_LED pin is disabled
xx_PWM = 1
→
External PWM control from PWM_LED pin is enabled
Internal PWM control (DUTY) can be used independently of external PWM control. External PWM has
the same effect on all enabled outputs.
CYCLE[2:0]
RSW1
GSW1
BSW1
RSW2
GSW2
BSW2
RGB_START
RGB_PWM
EN_FLASH
R1_PWM
G1_PWM
B1_PWM
R2_PWM
G2_PWM
B2_PWM
PWM_LED input can be used as a direct on/off or PWM
brightness control for selected RGB outputs. For example it
can trigger the flash using a flash signal from the camera. If
PWM_LED input is not used, it must be tied to V
DDIO
.
Note 17:
The LP3933 shares the same pattern generator. Application Note
AN-1291, “Driving RGB LEDs Using LP3933 Lighting Management System”
contains a thorough description of the RGB driver functionality including
programming examples.
L
www.national.com
18
相關(guān)PDF資料
PDF描述
LP3950SLX Color LED Driver with Audio Synchronizer
LP3952 6-Channel Color LED Driver with Audio Synchronization
LP3952RLX 6-Channel Color LED Driver with Audio Synchronization
LP3952RL 6-Channel Color LED Driver with Audio Synchronization
LP39542 Zener Diode; Application: Low noise; Pd (mW): 250; Vz (V): 4.3 to 4.7; Condition Iz at Vz (mA): 0.5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: LLD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP3950SL/CSP1 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:
LP3950SL/NOPB 功能描述:LED照明驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
LP3950SLX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Color LED Driver with Audio Synchronizer
LP3950SLX/NOPB 功能描述:IC LED DRVR WHITE BCKLGT 32-TSCP RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:PowerWise® 標(biāo)準(zhǔn)包裝:1 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?PWM，切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅(qū)動(dòng)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(yīng)商設(shè)備封裝:10-VSON 包裝:剪切帶 (CT) 工作溫度:-30°C ~ 85°C 產(chǎn)品目錄頁(yè)面:1371 (CN2011-ZH PDF) 其它名稱:BD1603NUV-E2CT
LP3952 制造商:NSC 制造商全稱:National Semiconductor 功能描述:6-Channel Color LED Driver with Audio Synchronization
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