<Dual-In-Line Package Intelligent Power Module>
1200V Mini DIPIPM with BSD Series APPLICATION NOTE
Publication Date: September 2015
18
Table 2-2-7 Outer heat sink
Heat sink size
( W x D x H )
200 x 85 x 40 mm
0
20
40
60
80
100
120
140
10 15 20 25 30 35 40 45 50 55 60
T
e
m
p
e
rat
ur
e[
°C
]
Loss [W]
Tj
Tc
Tic
Fig.2-2-13 Example of relationship of Tj, Tc, Tic
(
One IGBT chip turns on. DC current Ta=25°C
)
Procedure about setting the protection level by using Fig.2-2-14 is described as below.
Table 2-2-8 Procedure for setting protection level
Procedure
Setting value example
1)
Set the protection Tj temperature
Set Tj to 135°C as protection level.
2)
Get LVIC temperature Tic that matches to above Tj
of the protection level from the relationship of Tj-Tic
in Fig.2-2-14.
Tic=85°C (@Tj=135°C)
3)
Get V
OT
value from the VOT output characteristics in
Fig.2-2-15 and the Tic value which was obtained at
phase 2) .
V
OT
=2.64V (@Tic=85°C) is decided as the
protection level.
As above procedure, the setting value for V
OT
output is decided to 2.64V. But V
OT
output has some data
spread, so it is important to confirm whether the protection temperature fluctuation of Tj is not Tj>150°C due
to the data spread of V
OT
output. Procedure about the confirmation of temperature fluctuation is described in
Table 2-2-9.
Table 2-2-9 Procedure for confirmation of temperature fluctuation
Procedure
Confirmation
example
4)
Confirm the region of Tic fluctuation at above V
OT
from Fig.2-2-15.
Tic=80°C~90°C (@V
OT
=2.64V)
5)
Confirm the region of Tj fluctuation at above region
of Tic from Fig.2-2-14.
Tj=117°C~147°C (
≤
150°C No problem)
In this case, fluctuation of Tc is
Tc=100°C~120°C
D
W
H
