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參數(shù)資料
| 型號： | LP3954TL |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | Advanced Lighting Management Unit |
| 中文描述： | LED DISPLAY DRIVER, PBGA36 |
| 封裝： | 3 X 3 MM, 0.60 MM HEIGHT, 0.50 MM PITCH, MICRO, SMD-36 |
| 文件頁數(shù)： | 21/56頁 |
| 文件大?。?/td> | 5801K |
| 代理商： | LP3954TL |
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Overlapping mode
MODE_CTRL[1:0] = [10]
20132231
Peak Input Signal Level
Range vs Gain Setting
20132232
RGB OUTPUT SYNCHRONIZATION TO EXTERNAL CLOCK
The RGB pattern generator and high current flash driver timing can be synchronized to external clock with following configuration.
1.
Set PWM_SYNC bit in Enables register to 1
2.
Feed PWM_SYNC pin with 5 MHz clock
By this the internal 5 MHz clock is disabled from pattern generator and flash timing circuitry.
The external clock signal frequency will fully determine the timings related to RGB and Flash.
Note: The boost converter will use internal 5 MHz clock even if the external clock is available.
RGB Driver Typical Performance Characteristics
RGB DRIVER ELECTRICAL CHARACTERISTICS (R1, G1, B1, R2, G2, B2 OUTPUTS)
Symbol
I
LEAKAGE
I
MAX(RGB)
Parameter
R1, G1, B1, R2, G2, B2 pin leakage current
Condition
Min
Typ
0.1
Max
1
40
50
Units
μA
Maximum recommended sink current
CC mode
SW mode
R
RGB
=3.3 k
±
1%, CC mode
CC mode
I
RGB
=37mA, CC mode
SW mode
mA
mA
%
Accuracy @ 37mA
±5
Current mirror ratio
RGB1 and RGB2 current mismatch
1:100
±5
%
kHz
R
SW
RGB
Switch resistance
2.5
4
RGB switching frequency
Accuracy proportional to internal clock
freq.
If external SYNC 5MHz is in use
18.2
20
21.8
20
kHz
Note:
RGB current should be limited as follows:
constant current mode
– limit by external R
resistor;
switch mode
– limit by external ballast resistors
21
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LP3954TL/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 |
| LP3954TLX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Advanced Lighting Management Unit |
| LP3954TLX/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 |
| LP3958 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Lighting Management Unit with High Voltage Boost Converter |
| LP3958TL | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Lighting Management Unit with High Voltage Boost Converter |
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