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SMJD-2C16W4PD Datasheet(PDF) 5 Page - Seoul Semiconductor

No. de Pieza. SMJD-2C16W4PD
Descripción  Integrated AC LED Solution
Descarga  25 Pages
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Fabricante  SEOUL [Seoul Semiconductor]
Página de inicio  http://www.seoulsemicon.com
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SMJD-2C16W4PD Datasheet(HTML) 5 Page - Seoul Semiconductor

 
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Product Data Sheet
SMJD-XC16W4PX - Acrich3 8W
5
Rev1.3, Apr 1, 2016
Thermal Resistance
The Acrich3 module is recommended to keep the junction temperature under maximum junction
temperature spec. (Table 5)
LED lead temperature and IC top case temperature are measured with thermocupler. (Fig1)
LED & IC juntion temperatures can be calculated using the formulas below.
T
s_max = Tj_max - (Rθj-s * Pd)
< Example >
If LED lead temperature and IC top temerature are 110℃
1) LED juntion temperature
T
J = TS + (Rθj-s * Pd)
= 110℃ + (9 ℃/W * 0.84W) = 117.56 ℃
2)
IC junction temperature
T
J = TS + (Rθj-s * Pd)
(1)
= 110℃ + (11.25 ℃/W * 2.8W) = 141.5℃
* (1) : In the example, P
d value is the power consumption of IC when the rated voltage.
Part
Maximum
Junction Temperature [℃]
R
θ
j-s [℃/W]
Acrich3 LED
125
9
Acrich3 IC
150
11.25
Notes :
Table 5. Thermal information, Ta = 25ºC


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