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參數(shù)資料
| 型號： | LP5526 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | DRAM |
| 英文描述： | 4 Mbit Uniform Sector, Serial Flash Memory |
| 中文描述： | 4兆位統(tǒng)一部門，串行閃存 |
| 文件頁數(shù)： | 13/33頁 |
| 文件大?。?/td> | 1150K |
| 代理商： | LP5526 |
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Functionality of Color LED Outputs (RLED, GLED, BLED)
(Continued)
Overlapping Mode
In overlapping mode the brightness is controlled using PWM
duty cycle based control method as the following figure
shows.
20179787
Overlapping Mode
Since RGB outputs are on simuneltaneously, the maximum
load peak current is:
I
MAX
= I(RLED)
MAX
+ I(GLED)
MAX
+ I(BLED)
MAX
Non-Overlapping Mode
The timing diagram shows the splitted R, G and B and
brightness control effect to splitted parts. Full brightness is
used in the diagram. If for example
1
2
brightness is used, the
frame is still 50μs, but all LED outputs’ ON time is 50%
shorter and at the last 25μs all LED outputs are OFF.
20179788
Non-Overlapping Mode
The non-overlapping mode has 16 programmed colors (dif-
ferent R, G and B ratio -
>
different color). Since the R, G and
B are split in to non-overlapping slots the output current
through the RGB LED can be calculated with following equa-
tion:
I
AVG
=(C
R
xI
R
+C
G
xI
G
+C
B
xI
B
)xB
where
C = Color [%] (see table of color control)
B = Brightness [%] (see table of brightness control)
2. LED ON/OFF CONTROL WITH RGB CONTROL
REGISTER
Each LED output can be set ON by writing the corresponding
bit high in the Control register (00H). RSW controls RLED,
GSW controls GLED and BSW controls BLED output. Note
that EN_RGB bit must be high and RGB_PWM bit low. In this
mode, the RGB register (01H) does not have any effect.
CC_SW bit in Control register defines the LED output mode.
L
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP5526TL | 4 Mbit Uniform Sector, Serial Flash Memory |
| LP5526TLX | 4 Mbit Uniform Sector, Serial Flash Memory |
| LP5550 | PowerWise Technology Compliant Energy Management Unit |
| LP5550SQ | PowerWise Technology Compliant Energy Management Unit |
| LP5550SQX | PowerWise Technology Compliant Energy Management Unit |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP5526TL | 制造商:Texas Instruments 功能描述:DRIVER FLASH LED 0.15A POWERWISE 制造商:Texas Instruments 功能描述:DRIVER FLASH LED 0.15A, POWERWISE |
| LP5526TL/NOPB | 功能描述:LED照明驅(qū)動器 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 |
| LP5526TLEV | 功能描述:電源管理IC開發(fā)工具 LP5526TL EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LP5526TLX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Lighting Management Unit with High Voltage Boost Converter with up to 150mA Serial FLASH LED Driver |
| LP5526TLX/NOPB | 功能描述:LED照明驅(qū)動器 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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