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| MURF550PFG Datasheet, PDF (6/8 Pages) ON Semiconductor – SWITCHMODE Power Rectifier | |||
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MUR550APFG, MURD550PFG, MUR550PFG, MURF550PFG, NRVUD550PFT4G
10
0.5
1 0.2
0.1
0.05
0.01
0.1
Single Pulse
0.01
0.000001 0.00001
0.0001
0.001
0.01
0.1
1.0
t, TIME (s)
Figure 10. Thermal Response for MUR550PFG
P(pk)
t1
t2
DUTY CYCLE, D = t1/t2
10
100
1000
10
D = 0.5
0.2
1.0 0.1
0.05
0.02
0.1
0.01
SINGLE PULSE
0.01
0.001
0.000001
0.00001
0.0001
0.001
P(pk)
0.01
t, TIME (s)
t1
t2
DUTY CYCLE, D = t1/t2
0.1
1.0
ZqJC(t) = r(t) RqJC
RqJC = 1.6ï°C/W MAX
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1
TJ(pk) - TC = P(pk) ZqJC(t)
10
100
1000
Figure 11. Thermal Response, (MURF550PFG) JunctionâtoâCase (RqJC)
100
D = 0.5
0.2
10 0.1
0.05
0.02
1.0
0.01
0.1
0.01 SINGLE PULSE
0.001
0.000001
0.00001
0.0001
0.001
0.01
t, TIME (s)
P(pk)
t1
t2
DUTY CYCLE, D = t1/t2
0.1
1.0
ZqJC(t) = r(t) RqJC
RqJC = 1.6ï°C/W MAX
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1
TJ(pk) - TC = P(pk) ZqJC(t)
10
100
1000
Figure 12. Thermal Response, (MURF550PFG) JunctionâtoâAmbient (RqJA)
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