OVTL09LG3W Optek, OVTL09LG3W Datasheet - Page 7

• Manufacturer Part Number: OVTL09LG3W
• Description: LED High Power (> 0.5 Watts) Cool White 6400K 250lm 1050mA
• Manufacturer: Optek

Specifications of OVTL09LG3W

• Illumination Color: Cool White
• Wavelength/color Temperature: 7600 K
• Luminous Flux: 565 lm
• Power Rating: 10 W
• Operating Voltage: 10.2 V
• Operating Current: 1.05 A
• Minimum Operating Temperature: - 50 C
• Maximum Operating Temperature: + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dimming and color mixing for OVTL09LG3M
Lednium Series Optimal X
OVTL09LG3x Series
mixture or R + G + B. To change the emission level of any group (color), and therefore the color of the mixed light,
the current passing through each group must be changed, yet the circuit current remains a constant value. The
means of doing this is to shunt current away from a group while allowing the total circuit current to remain constant.
can be independently and continuously adjusted. The transistors will turn OFF (short across) each strip individually
when they are ON. The frequency for PWMs should be high to eliminate flickering (more than 20KHz preferred).
Controlling the ON time for each strip will control the average intensity of each strip in order to color-mix the RGB
Turtle.
Spatial Intensity Distribution
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: [phone] or [phone] FAX: [phone] [e-mail] www.optekinc.com
In the diagram below if each parallel group of three LEDs is a single color the luminous flux produced is a
By controlling the operating point of the three shunt transistors, the operating current of each group of LEDs
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
-
Green PWM
Blue PWN
-80
Red PWM
Normalized Spectral Intensity vs Angular Displacement
-60
R1 - 10K
R1 - 10K
R1 - 10K
MGSF1N03LT1G
MGSF1N03LT1G
MGSF1N03LT1G
-40
-20
Angle (degrees)
1
1
1
3
2
3
2
3
2
0
20
3
2
1
40
Common
60
Current
Source
80
100
Issue B.2 07/08
Page 7 of 14