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參數(shù)資料
| 型號(hào)： | LP3933SLX |
| 廠(chǎng)商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | Lighting Management System for Six White LEDs and Two RGB or FLASH LEDs |
| 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)： | 14/18頁(yè) |
| 文件大?。?/td> | 406K |
| 代理商： | LP3933SLX |
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RGB LED PWM Control
(Note 15) (Continued)
RSW1
GSW1
BSW1
RSW2
GSW2
BSW2
RGB_START
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 controls for RGB1 and RGB2. In 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.
RGB_PWM
EN_FLASH1
EN_FLASH2
R1_PWM
G1_PWM
B1_PWM
R2_PWM
G2_PWM
B2_PWM
PWM_LED input can be used as direct on/off or brightness (PWM) control. If PWM_LED input is not used, it must be tied to V
DD_IO
.
Note 15:
Application Note 1291, “Driving RGB LEDs Using LP3933 Lighting Management System” contains a thorough description of the RGB driver functionality
including programming examples.
WLED Driver (WLED1...4)
White LED (WLED) driver drives each white LED with a
regulated constant current. The amount of the current is
controlled by the 8-bit current mode DAC from 0 to 25.5mA
in 0.1mA steps.
20080527
CLED Driver (CLED1…2)
The current of CLEDs (Caller ID display backlight LEDs) can
be adjusted by 8-bit current mode DAC. WLED and CLED
can be used to drive any kind of LED.
20080504
Enables
WLED and CLED enable is controlled from user register.
PWM control of WLED and CLED (for dimming etc.) is
possible using PWM_LED pin together with WLED_PWM
and CLED_PWM enable control from user register.
L
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| LP3936SLX | Lighting Management System for Six White LEDs and One RGB or FLASH LED |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3936 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Lighting Management System for Six White LEDs and One RGB or FLASH LED |
| LP3936SL | 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 |
| LP3936SL/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 |
| LP3936SLX | 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 |
| LP3936SLX/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 |
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