MBR2045CT Просмотр технического описания (PDF) - Motorola => Freescale
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MBR2045CT Datasheet PDF : 6 Pages
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40
35
30
25
+ 20
(CAPACITIVE
LOAD)
IPK
IAV
5
15
10
10
20
5.0
RATED VOLTAGE APPLIED
+ IPK
IAV
p (RESISTIVE LOAD)
SQUARE
WAVE
dc
0
110
120
130
140
150
160
TC, CASE TEMPERATURE (°C)
Figure 5. Current Derating, Infinite Heatsink
MBR2035CT MBR2045CT
32
RATED VOLTAGE APPLIED
28
24
+ IPK
IAV
p (RESISTIVE LOAD)
20
16
SQUARE
WAVE
12
dc
8.0
+ 4.0
(CAPACITIVE
LOAD)
IPK
IAV
20, 10, 5
0
0 20 40 60 80 100 120 140 160
TA, AMBIENT TEMPERATURE (°C)
Figure 6. Current Derating, RqJA = 16°C/W
20
18
SINE WAVE
16
RESISTIVE LOAD
+ 14
12
(CAPACITIVE
LOAD)
10
IPK
IAV
5
10
20
8.0
SQUARE dc
WAVE
6.0
4.0
TJ = 150°C
2.0
0
0 4.0 8.0 12 16 20 24 28 32
IF(AV), AVERAGE FORWARD CURRENT (AMPS)
Figure 7. Forward Power Dissipation
10
RATED VOLTAGE APPLIED
RqJA = 60°C/W
8.0
+ IPK
IAV
p (RESISTIVE LOAD)
6.0
SQUARE
WAVE
4.0
dc
+ 2.0
(CAPACITIVE
LOAD)
IPK
IAV
20, 10, 5
0
0 20 40 60 80 100 120 140 160
TA, AMBIENT TEMPERATURE (°C)
Figure 8. Current Derating, Free Air
1.0
0.7
0.5
0.3
0.2
0.1
0.07
0.05
0.03
0.02
0.01
0.01
tp
Ppk
t1
Ppk
TIME
DUTY CYCLE, D = tp/t1
PEAK POWER, Ppk, is peak of an
equivalent square power pulse.
∆TJL = Ppk • RθJL [D + (1 – D) • r(t1 + tp) + r(tp) – r(t1)] where:
∆TJL = the increase in junction temperature above the lead temperature.
r(t) = normalized value of transient thermal resistance at time, t, i.e.:
r(t1 + tp) = normalized value of transient thermal resistance at time,
t1 + tp, etc.
0.1
1.0
10
100
1000
t, TIME (ms)
Figure 9. Thermal Response
Rectifier Device Data
3
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