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參數(shù)資料
| 型號： | KAB3405T |
| 廠商： | KEC Holdings |
| 英文描述： | Step Up Type DC/DC Converter for White LED |
| 中文描述： | 升壓式直流/直流轉換器，用于白光LED |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 623K |
| 代理商： | KAB3405T |
2007. 4. 2
4/7
KAB3405T
Revision No : 0
Protection in LED opened condition
The operation with OVD terminal is available for the protection in case LED Circuit opened.
When the voltage of OVD terminal is over 38V (typ.), Nch MOS switching operation is disabled in the IC. When the voltage of
OVD terminal drops below 38V (typ.), Nch MOS switching operation becomes available again.
If load of LED is detached, Nch MOS switching operation is disabled with detection of boost circuit voltage and the IC is
protected from unexpected over voltage.
Setting of external Capacitor
In case not using PWM signal to SHDN terminal for brightness control, recommended values are
C
IN
= Over 2.2 ( F), C
OUT
= Over 1.0 ( F)
In case with PWM signal to SHDN terminal for brightness control, recommended values are
C
IN
= Over 4.7 ( F), C
OUT
=Under 1.0 ( F)
The recommended values of the capacitors depend on the control of brightness. For details, please see the item Control of
brightness from the next page.)
These recommended values reduce fluctuation of input current to up accuracy of brightness.
<Please see after page-6>
The capacitor value must be considered for gain enough accuracy of brightness with reduction of noise from
Input current changing.
Setting of External Inductor Size
Please select the inductor size with referring this table corresponding to each number of LEDs.
Recommendation for the case that LED current I
F
= 20 mA
Setting of I
F
Resistance connects between R
SENS
pin and GND.
The average current is set by this R
SENS
value and average current are obtained by the following equation.
I
F
[mA] =
Current Value error is within
5%.
LEDs
Indictor Size
Note
2 - 5
Over 6
10 H
22 H
LED current I
F
= 20 mA
300[mV]
R
SENS
[
]
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| KAB3405T_08 | 制造商:KEC 制造商全稱:KEC(Korea Electronics) 功能描述:Step Up Type DC/DC Converter for White LED |
| KAB-3421 PL | 功能描述:BOX CAST ALUM 4.38 X 2.38 X1.06 RoHS:是 類別:盒，外殼，支架 >> 箱 系列:- 產(chǎn)品培訓模塊:Modified Enclosures 視頻文件:Bud's Custom Capabilities 產(chǎn)品目錄繪圖:C-158x, C-189x 特色產(chǎn)品:Customize Your Enclosure 標準包裝:1 系列:- 容器 - 類型:機柜 尺寸/尺寸:8.000" L x 14.062" W（203.20mm x 357.17mm） 高度:8.000"（203.20mm） 面積 (L x W):113"（729cm） 設計:鉸鏈式門，蓋 材質:金屬 - 鋼 顏色:灰 厚度:20 號 特點:- 額定值:- 材料可燃性額定值:- 裝運信息:從 Digi-Key 運送 重量:6.3 磅（2.9kg） 相關產(chǎn)品:377-1018-ND - CHASSIS ALUM 7 X 13 X 2 NAT 其它名稱:377-1072C 1894C1894 |
| KAB-3432 | 功能描述:罩類、盒類及殼類產(chǎn)品 UTILITY ENCL NON-PAINTED RoHS:否 制造商:Bud Industries 產(chǎn)品:Boxes 外部深度:6.35 mm 外部寬度:6.35 mm 外部高度:2.56 mm NEMA 額定值: IP 等級: 材料:Acrylonitrile Butadiene Styrene (ABS) 顏色:Red |
| KAB-3432 PL | 功能描述:BOX CAST ALUM 4.69 X 3.69 X 2.06 RoHS:是 類別:盒，外殼，支架 >> 箱 系列:- 產(chǎn)品培訓模塊:Modified Enclosures 視頻文件:Bud's Custom Capabilities 產(chǎn)品目錄繪圖:C-158x, C-189x 特色產(chǎn)品:Customize Your Enclosure 標準包裝:1 系列:- 容器 - 類型:機柜 尺寸/尺寸:8.000" L x 14.062" W（203.20mm x 357.17mm） 高度:8.000"（203.20mm） 面積 (L x W):113"（729cm） 設計:鉸鏈式門，蓋 材質:金屬 - 鋼 顏色:灰 厚度:20 號 特點:- 額定值:- 材料可燃性額定值:- 裝運信息:從 Digi-Key 運送 重量:6.3 磅（2.9kg） 相關產(chǎn)品:377-1018-ND - CHASSIS ALUM 7 X 13 X 2 NAT 其它名稱:377-1072C 1894C1894 |
| KAB-35 | 制造商:Cooper Bussmann 功能描述: |
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