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參數(shù)資料
| 型號： | SP6683ER |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | High Power LED Driver for Parallel Configuration |
| 中文描述： | 大功率并聯(lián)配置驅(qū)動程序 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 200K |
| 代理商： | SP6683ER |
5
Date: 07/07/04
SP6683 White LEDs Driver for Parallel Configuration Copyright 2004 Sipex Corporation
In this application, the bias resistor can be se-
lected by:
R
B
= V
FB
I
LED (TOTAL)
where I
LED(TOTAL)
is the total operating current
of all the white LEDs.
To use SP6683 as a voltage source for fixed
voltage applications, a voltage divider is need to
program the ouput voltage, as shown in figure 12.
The output voltage is set by the ratio of the two
resistors and the feedback control voltage as
shown by:
V
OUT
= ( 1 + R
5
) V
FB
R
6
in this way.
In figure 11, SP6683 was used to drive a 2-wire
white LED module without internal series resis-
tors as a current source. The bias resistor R
B
is
selected to regulate the total current of the white
LED module instead of the current of single
LED as in figure 9.
3-wire W-LED module
Anode
FB
GND
Fig 10. 3-wire white LED module
GND
V
OUT
Anode
5
V
FB
Rb
SP6683
Cathode
8
2-wire W-LED module
1
Figure 11. Driving 2-wire white LED module as current
source
OPERATION: Continued
Anode
5
8
SP6683
Cathode
V
OUT
R6
1
R5
1uF
V
FB
2-wire W-LED
GND
Figure 12. Driving 2-wire white LED module as
voltage source
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| SP6683EU | High Power LED Driver for Parallel Configuration |
| SP6685ERTR | Charge Pump LED Driver For Camera Flash |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6683ER/TR | 功能描述:LED照明驅(qū)動器 High Power Parallel Configuration 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 |
| SP6683ER-L | 功能描述:LED照明驅(qū)動器 Configuration 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 |
| SP6683ER-L/TR | 功能描述:LED照明驅(qū)動器 High Power Parallel Configuration 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 |
| SP6683EU | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Power LED Driver for Parallel Configuration |
| SP6683EU/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Power LED Driver for Parallel Configuration |
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