7-4. Thermal Design
-The thermal design to draw heat away from the LED junction is most critical parameter
for an LED illumination system. High operating temperatures at the LED junction adversely affect
the performance of LED’s light output and lifetime. Therefore the LED junction temperature should
not exceed the absolute maximum rating in LED illumination system.
-The LED junction temperature while operation of LED illumination system depends upon
thermal resistance of internal LED package (Rj-c), outer thermal resistances of LED package,
power loss and ambient temperature. Please take both of the thermal design specifications
and ambient temperature conditions into consideration for the setting of driving conditions.
-For more information, please refer to application note "Thermal Management".
7-5. Driving Voltage
-Stable full rectified AC Voltage is recommended as an applying driving voltage to this product.
-Electrical transient might apply excess voltage, excess current and reverse voltage to the product(s).
They also affect negative impact on the product(s) therefore please make sure that no excess voltage,
excess current and reverse voltage is applied to the product(s) .
7-6. Electrical Safety
-Please attach a varistor and Fuse for protecting surge according to reference circuit.
-Please note LED modules run on high voltage so use caution when near the leads
or if a dome is inadvertently removed while circuit is active
-Please do not touch any of the circuit board, components or terminals with
bare hands or metal while circuit is electrically active.
-Please do not add or change wires while LED modules circuit is active.
-Please do not touch wire on solder pad at driving AC source.
-This product is designed and produced according to IEC 62031:2008
(IEC 62031:2008 LED modules for general lighting. Safety specification)
-Dielectric voltage withstand test has been conducted on this product to see any failure
after applying voltage between active pads and ceramic section of the product, and to pass at least 1500V.
-Considering conformity assessment for IEC62031:2008, almost all items of the specification
depend upon your final product of LED illumination system.
Therefore, please confirm with your final product for electrical safety of your product.
As well, the products comply with the criteria of IEC62031:2008 as single LED package.
12
Ref.CE-P3410 12/04
CITIZEN [ CITIZEN ELECTRONICS CO., LTD. ]
