Q36SR12017_01262014

10

*

THERMAL CURVES

(WITH HEAT SPREADER)

HOT SPOT 2

AIRFLOW

Figure 22: Temperature measurement location.* The allowed

maximum hot spot 2 temperature is defined at 110

℃

Q36SR12017(Standard) Output Current vs. Ambient Temperature and Air Velocity

@Vin = 24V (Transverse Orientation,With Heatspreader)

0

3

6

9

12

15

18

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (℃)

Output Current (A)

Natural

Convection

600LFM

500LFM

400LFM

300LFM

200LFM

100LFM

Figure 23: Output current vs. ambient temperature and air velocity

@Vin=24V(Transverse Orientation, Airflow direction from Vin+ to

Vin-,with heat spreader)

Q36SR12017(Standard) Output Current vs. Ambient Temperature and Air Velocity

@Vin = 48V (Transverse Orientation,With Heatspreader)

0

3

6

9

12

15

18

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (℃)

Output Current (A)

Natural

Convection

100LFM

200LFM

300LFM

400LFM

500LFM

600LFM

Figure 24: Output current vs. ambient temperature and air velocity

@Vin=48V(Transverse Orientation, Airflow direction from Vin+ to

Vin-,with heat spreader)

THERMAL CURVES

(WITHOUT HEAT SPREADER)

HOT SPOT 1

AIRFLOW

NTC RESISTOR

Figure 19: Temperature measurement location.* The allowed

maximum hot spot1 temperature is defined at 125

℃

Q36SR12017(Standard) Output Current vs. Ambient Temperature and Air Velocity

@Vin = 24V (Transverse Orientation)

0

3

6

9

12

15

18

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (℃)

Output Current (A)

Natural

Convection

600LFM

500LFM

400LFM

300LFM

200LFM

100LFM

Figure 20: Output current vs. ambient temperature and air

velocity @Vin=24V(Transverse Orientation, Airflow direction

from Vin+ to Vin-,without heat spreader)

Q36SR12017(Standard) Output Current vs. Ambient Temperature and Air Velocity

@Vin = 48V (Transverse Orientation)

0

3

6

9

12

15

18

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (℃)

Output Current (A)

Natural

Convection

100LFM

200LFM

300LFM

400LFM

500LFM

600LFM

Figure 21: Output current vs. ambient temperature and air

velocity @Vin=48V(Transverse Orientation, Airflow direction

from Vin+ to Vin-,without heat spreader)