3

oPErAting LiMits

The maximum current rating of the CXA3590 is dependent 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. Please refer to the Mechanical Dimensions

section on page 19 for the location of the Tc measurement point.

CXA3590

0

400

800

1200

1600

2000

2400

2800

3200

3600

4000

0

25

50

75

100

125

150

Case Temperature (°C)

36 V

0

200

400

600

800

1000

1200

1400

1600

1800

2000

0

25

50

75

100

125

150

Case Temperature (°C)

72 V