- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384605 > LP3950SL (NATIONAL SEMICONDUCTOR CORP) Color LED Driver with Audio Synchronizer PDF資料下載
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 |
| 文件頁數(shù)： | 16/31頁 |
| 文件大小： | 1085K |
| 代理商： | LP3950SL |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁當(dāng)前第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁
Boost Converter Typical Performance Characteristics
V
IN
= 3.6V, V
OUT
= 5.0V if not
otherwise stated. (Continued)
Boost Line Regulation
Boost Load Transient Response, 50 mA to 100 mA
20129319
20129323
RGB LED Pattern Generator
The LP3950 RGB outputs can be controlled either with audio
synchronization or with RGB pattern generator.
The pattern generator of LP3950 drives three independently
controlled LED outputs (for example, R1, G1 and B1). The
functionality is similar compared to RGB functionality of
LP3936 and LP3933.
The output of RGB pattern generator can be selected to
drive RGB1 (R1-G1-B1), RGB2 (R2-G2-B2) or RGB1 and
RGB2 (R1&R2 – G1&G2 – B1&B2) outputs.
Programmable Pattern Mode
User has control over the following parameters separately
for each LED:
ON and OFF
(start and stop time in blinking cycle)
DUTY
(PWM brightness control)
SLOPE
(dimming slope)
ENABLE
(output enable control)
The main blinking cycle is controlled with three-bit CYCLE
control (0.25 / 0.5 / 1.0 / 2.0 / 4.0s).
RGB_START is the master control for the whole RGB func-
tion. The internal PWM and blinking control can be disabled
by setting the RGB_PWM control LOW. In this case the
individual enable controls can be used to switch outputs on
and off. PWM_EN input can be used for external hardware
PWM control.
In the normal PWM mode the R, G and B switches are
controlled in 3 phases (one phase per driver). During each
phase the peak current set by an external ballast resistor is
driven through the LED for the time defined by DUTY setting
(0 μs to 50 μs). As a time averaged current this means
0% to 33% of the peak current. The PWM period is 150 μs
and the pulse frequency is 6.67 kHz in normal mode.
In the FLASH mode all the outputs are controlled in one
phase and the PWM period is 50 μs. The time averaged
FLASH mode current is three times the normal mode current
at the same DUTY value.
20129324
FIGURE 12. RGB PWM Operating Principle
20129325
FIGURE 13. Normal Mode PWM Waveforms at Different
Duty Settings
L
www.national.com
16
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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。