Datasheet

DocID024685 Rev 1 3/9
BTW69-1200N Characteristics
9
Table 4. Thermal resistance
Symbol Parameter Value Unit
R
th(j-c)
Junction to case (DC, typ.) 0.45 °C/W
R
th(j-a)
Junction to ambient (DC) 50 °C/W
Figure 1. Maximum average power dissipation
versus average on-state current
Figure 2. Correlation between maximum
average power dissipation and maximum
allowable temperatures
P(W)
0
5
10
15
20
25
30
35
40
45
50
55
0 5 10 15 20 25 30 35 40
DC
I (A)
T(AV)
360°
a
a = 180°
a = 120°
a = 90°
a = 60°
a = 30°
0
10
20
30
40
50
0 25 50 75 100 125
P
(AV)
(W)
100.2
102.7
105.2
107.7
110.2
112.7
115.2
117.7
120.2
122.7
T
c
(°C)
R
TH
(assembly)
0 °C/W
1 °C/W
2 °C/W
3 °C/W
T
a
(°C)
a = 180°
Figure 3. Average and DC on-state current
versus case temperature
Figure 4. Average and DC on-state current
versus ambient temperature
I (A)
T(AV)
0
5
10
15
20
25
30
35
40
45
50
55
0 25 50 75 100 125
DC
a = 180°
a = 120°
a = 90°
a = 60°
a = 30°
T (°C)
case
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 25 50 75 100 125
DC
I (A)
T(AV)
a = 180°
T (°C)
a