|Category||Optoelectronics => Display => LEDs => BACKlight|
|Company||Osram Opto Semiconductors|
|Datasheet||Download OS-LM03A-S1 datasheet
Any shape channel letter Highly saturated colors Adjustable luminance levels Outstanding uniformity Minimal heat generationApplications
Illuminated signs Channel letters Edge-lighting of transparent or diffused materials
white super red orange yellow green blue
All Data are related to the entire module Due to the special conditions of the manufacturing processes of LED the typical data of technical parameters can only reflect statistical figures and do not necessarily correspond to the actual parameters of each single product which could differ from the typical data.
Ø One chain with 8 LED coupons Ø Size of single circuit board Ø Mounting hole 4 mm) allows easy installation
Ø Parallel connection up to three modules Ø Only parallel connection allowed Ø Conformal coating protects againstØ Total length from mm Ø Cut into operable subunits at regular intervals
Exceeding maximum ratings for operation and storage temperature will reduce expected life time or destroy the LED Module. Exceeding maximum ratings for operation voltage will cause hazardous overload and will likely destroy the LED Module. The temperature of the LED module has to measured at the Tc-point according in a thermally constant status with a temperature sensor or a temperature sensitive label (available e.g. at RS-Components). For exact location of the Tc-point see drawing below.
Ø The LED module itself and all its components may not be mechanical stressed. Ø Assembly must not damage or destroy conducting paths on the circuit board. Ø To avoid mechanical damage to the connecting cables, the boards should be attached securely to the intended substrate. Heavy vibration should be avoided. Ø Detach each circuit board unit of the module only by severing the connecting cables (with power disconnected).
The LED Module incorporates no protection against: Short circuits, Overload, Overheating. Therefore it is absolutely necessary to operate the modules with a electronically stabilised power supply offering protection against the above mentioned safety risks. For dimming applications attention should be paid to specific references in "OPTOTRONIC Technical Guide".
OSRAM OPTOTRONIC power supplies are specifically designed with the necessary protection features for safe operation.
When using other power supplies other than OPTOTRONIC the following basic safety features are required, in addition to any other application specific concerns and local safety codes: Short circuit protection Overload protection Overheat protection Correct output voltage
Ø Correct electrical polarity needs to be observed. Wrong polarity will result in no light emission. Ø Parallel connection is highly recommended as safe electrical operation mode. Serial connection is not recommended. Unbalanced voltage drop can cause hazardous overload and demage the LED module. Ø Installation of LED modules (with power supplies) needs to be made with regard to all applicable electrical and safety standards. Only qualified personnel should be allowed to perform installations. Ø Electrical contact is achieved with the contact cables. A maximum of 3 modules can be installed consecutively from one power feed. Operation with more than 3 consecutive BACKlight modules will reduce photometric performance and exceed the current carrying capacity of the module. Ø The BACKlight can typically survive transient current levels to 2 Amperes. As a general design precaution, if the maximum output current of the power supply is more than 2 Amperes, fast-blow fuses should be incorporated into the wiring plan. Ø The module itself is protected against condensation water with a polymeric conformal coating. Supplementary soldering on any solder pad will destroy the conformal coating and with it protection against condensation water. Ø If the IP rating of the fixture or channel letter system should be higher as IP22 the design of the housing should be according to the IP standards. Operation in or under water is not allowed.
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