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參數(shù)資料
| 型號： | SP6683EU |
| 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： | SP6683EU |
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
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6683EU/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Power LED Driver for Parallel Configuration |
| SP6683UEB | 功能描述:LED 照明開發(fā)工具 High Power LED Drvr for Parallel Config RoHS:否 制造商:Fairchild Semiconductor 產(chǎn)品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
| SP6685 | 制造商:EXAR 制造商全稱:EXAR 功能描述:700mA Buck/Boost Charge Pump LED Driver |
| SP6685_06 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:700mA Buck/Boost Charge Pump LED Driver |
| SP6685EB | 功能描述:電源管理IC開發(fā)工具 Eval Board for SP6685 Series 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 |
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