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參數(shù)資料
| 型號： | UPBLED470-C |
| 廠商： | MICROSEMI CORP-LOWELL |
| 元件分類： | LED |
| 英文描述： | SINGLE COLOR LED, HIGH BRIGHT BLUE, 1.27 mm |
| 文件頁數(shù)： | 6/6頁 |
| 文件大?。?/td> | 275K |
| 代理商： | UPBLED470-C |
P
P R
R E
E L
L II M
M II N
N A
A R
R Y
Y
UPBLED470-C
HIGH BRIGHTNESS BLUE LED
PRODUCT PREVIEW
W
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CALCULATION FOR SAFE OPERATION ABOVE 20 ma dc:
The power dissipation must be held at a level to maintains the junction below the maximum specified operating temperature.
Duty cycle control may be used to establish the safe operating condition using a train of pulses.
LED Junction temperature may be calculated by use of the following:
T J
1
T Case V F I Dpk
.
t p Rθ JS
.
τ
t p
τ
Z
θτ
t p
.
Z
θτ Zθ
tp
.
T Case V F I Dpk
t p Rθ JS
τ
t p
τ
Z
θτ
t p
Z
θτ Zθ
tp
TCase is at a specified temperature. VF and IDpk values are read off graph of forward voltage vs drive current. tp and τ
are set by the on-time and pulse period of the drive circuit. Thermal Impedances (Z
θ) and Thermal resistance (Rθ)
values are read from Thermal Impedance graph.
Conversion of 1931 x y coordinates to 1960 u v coordinates:
u = 4x/(-2x + 12y + 3) , v = 6y/(-2x + 12y +3)
Conversion of 1960 u v coordinates to 1931 x y coordinates:
x = 3u/(2u – 8v +4), y = 2v/(2u –8v +4).
* UPBLED-470C SPICE MODEL
UU
PP
BB
LL
44
77
--CC
EE
DD
AA
.model UPBLED-470C D(Is=1E-30 N=1.923 Rs=32 Ikf=42.04 Eg=3.6 Cjo=63.87p
+
M=.1513 Vj=2.02 Fc=.5 Isr=1.3m Nr=3.4Meg Bv=12 Ibv=369.5u
+
Tt=432.8n Xti=5)
Microsemi
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235
Page 6
Copyright
2002
Rev. 0.03, 2003-02-11
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPBLED470B | SINGLE COLOR LED, HIGH BRIGHT BLUE, 1.4732 mm |
| UPBLEDLPFS | SINGLE COLOR LED, HIGH BRIGHT BLUE, 1.47 mm |
| UPBLEDLPGS | SINGLE COLOR LED, HIGH BRIGHT BLUE, 1.47 mm |
| UPBLEDLPHS | SINGLE COLOR LED, HIGH BRIGHT BLUE, 1.47 mm |
| UPBLEDLPFL | SINGLE COLOR LED, HIGH BRIGHT BLUE, 1.47 mm |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPBLED470L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LED |
| UPBLEDLPXX | 制造商:Microsemi Corporation 功能描述:UPBLEDLPXX - Bulk |
| UPBU7MY | 制造商:Panduit Corp 功能描述:Cable Assembly Cord 23AWG 8 POS Plug to 8 POS Plug PL-PL |
| UPC(BULK) | 制造商:3M Electronic Products Division 功能描述:SCOTCHLOK CLEARING CAP 22-26AWG |
| UPC(CART) | 制造商:3M Electronic Products Division 功能描述:SCOTCHLOK CLEARING CAP 22-26AWG |
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