XLAMP® CMB1507 LED

© 2022 Cree LED. The information in this document is subject to change without notice. Cree®, XLamp®, EasyWhite®, and the Cree logo are registered

trademarks, and the Cree LED logo is a trademark, of Cree LED.

CLD-DS281

REV 0

4

OPERATING LIMITS

The maximum current rating of the CMB1507 LED depends on the case temperature (Tc) when the LED has reached thermal equilibrium

under steady‑state operation. The graphs shown below assume that the system design employs good thermal management (thermal

interface material and heat sink) and may vary when poor thermal management is employed. Either solder pad shown in the Mechanical

Dimensions section on page 21 can be used as the Tc measurement point.

Another important factor in good thermal management is the temperature of the Light Emitting Surface (LES). Cree LED recommends a

maximum LES temperature of 140 °C to ensure optimal LED lifetime. Please refer to the Thermal Design section on page 22 for more

information on LES temperature measurement.

CMB1507 - 18 V

0

200

400

600

800

1000

1200

1400

0

25

50

75

100

125

150

Case Temperature (°C)

105 °C, 1200 mA

125 °C,

460 mA

18 V

CMB1507 - 36 V

0

100

200

300

400

500

600

700

0

25

50

75

100

125

150

Case Temperature (°C)

105 °C, 600 mA

125 °C,

230 mA

36 V