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參數(shù)資料
| 型號： | MMSF7P03HD |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Power MOSFET 7 A, 30 V, P Channel SO8(7A，30V，P溝道功率MOSFET) |
| 中文描述： | 功率MOSFET 7甲，30五，P通道SO8封裝（第7A，30V的，P溝道功率MOSFET的） |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 89K |
| 代理商： | MMSF7P03HD |
MMSF7P03HD
http://onsemi.com
6
SAFE OPERATING AREA
The Forward Biased Safe Operating Area curve (Figure
12) defines the maximum simultaneous draintosource
voltage and drain current that a transistor can handle safely
when it is forward biased. Curves are based upon maximum
peak junction temperature and a case temperature (T
C
) of
25
°
C. Peak repetitive pulsed power limits are determined by
using the thermal response data in conjunction with the
procedures discussed in AN569, “Transient Thermal
Resistance General Data and Its Use.”
Switching between the offstate and the onstate may
traverse any load line provided neither rated peak current
(I
DM
) nor rated voltage (V
DSS
) is exceeded, and that the
transition time (t
r
, t
f
) does not exceed 10 s. In addition the
total power averaged over a complete switching cycle must
not exceed (T
J(MAX)
T
C
)/(R
JC
).
A power MOSFET designated EFET can be safely used
in switching circuits with unclamped inductive loads. For
reliable operation, the stored energy from circuit inductance
dissipated in the transistor while in avalanche must be less
than the rated limit and must be adjusted for operating
conditions differing from those specified. Although industry
practice is to rate in terms of energy, avalanche energy
capability is not a constant. The energy rating decreases
nonlinearly with an increase of peak current in avalanche
and peak junction temperature.
Although many EFETs can withstand the stress of
draintosource avalanche at currents up to rated pulsed
current (I
DM
), the energy rating is specified at rated
continuous current (I
D
), in accordance with industry
custom. The energy rating must be derated for temperature
as shown in the accompanying graph (Figure 13). Maximum
energy at currents below rated continuous I
D
can safely be
assumed to equal the values indicated.
Figure 12. Maximum Rated Forward Biased
Safe Operating Area
0.1
V
DS
, DRAINTOSOURCE VOLTAGE (VOLTS)
1.0
10
I
R
DS(on)
LIMIT
THERMAL LIMIT
PACKAGE LIMIT
V
GS
= 12 V
SINGLE PULSE
T
A
= 25
°
C
10
0.0
1
dc
10 ms
1.0
100
100
1 ms
T
J
, STARTING JUNCTION TEMPERATURE (
°
C)
EA
A
025
45
65
85
105
3000
145
2000
500
4000
Figure 13. Maximum Avalanche Energy versus
Starting Junction Temperature
5000
0.1
125
2500
1500
3500
4500
1000
I
D
= 7.0 A
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