Safe operating area, Derating curve, Transient thermal impedance – Diodes DXT690BP5 User Manual
Page 3: Pulse power dissipation, Dxt690bp5, Thermal characteristics and derating information

PowerDI is a registered trademark of Diodes Incorporated.
DXT690BP5
Document number: DS31801 Rev. 3 - 2
3 of 7
February 2014
© Diodes Incorporated
DXT690BP5
A Product Line of
Diodes Incorporated
Thermal Characteristics and Derating Information
10
100
1000
10000
20
40
60
80
100
120
140
160
180
10
100
1000
10000
0
1
2
3
4
100m
1
10
10m
100m
1
10
Single Pulse. T
A
=25°C
50mm x 50mm 2oz FR4
V
CE(sat)
Limited
100µs
1ms
10ms
100ms
1s
DC
Safe Operating Area
I
C
Col
le
ct
or
Current
(A
)
V
CE
Collector-Emitter Voltage (V)
0
25
50
75
100
125
150
175
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
MRP
1oz FR4
25mm x 25mm
1oz FR4
50mm x 50mm
2oz FR4
Derating Curve
Temperature (°C)
M
a
x P
o
w
er
Di
ss
ipat
ion (W)
100µ
1m
10m 100m
1
10
100
1k
0
10
20
30
40
Power Rating vs. Cu Area
Thermal Resistance vs. Cu Area
50mm x 50mm
2oz FR4
Transient Thermal Impedance
D=0.5
D=0.2
D=0.1
Single Pulse
D=0.05
T
h
e
rm
a
l Re
si
st
a
nce
(
°C
/W
)
Pulse Width (s)
100µ
1m
10m 100m
1
10
100
1k
1
10
100
Single Pulse. T
A
=25°C
50mm x 50mm
2oz FR4
Pulse Power Dissipation
Pulse Width (s)
M
a
x P
ow
e
r Di
ss
ipat
ion (W)
2 oz. weight Copper
Copper Area (sq mm)
T
herm
a
l R
es
ist
an
ce
(°
C/
W)
1 oz. weight Copper
1 oz. weight Copper
2 oz. weight Copper
P
o
wer Rat
ing (W)
Copper Area (sq mm)
T
A
= 25°C