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MMSF7N03HD Datasheet(PDF) 6 Page - Motorola, Inc

Part No. MMSF7N03HD
Description  SINGLE TMOS POWER MOSFET 8.0 AMPERES 30 VOLTS
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MMSF7N03HD Datasheet(HTML) 6 Page - Motorola, Inc

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MMSF7N03HD
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Motorola TMOS Power MOSFET Transistor Device Data
t, TIME
Figure 11. Reverse Recovery Time (trr)
di/dt = 300 A/
µs
Standard Cell Density
High Cell Density
tb
trr
ta
trr
SAFE OPERATING AREA
The Forward Biased Safe Operating Area curves define
the maximum simultaneous drain–to–source voltage and
drain current that a transistor can handle safely when it is for-
ward biased. Curves are based upon maximum peak junc-
tion temperature and a case temperature (TC) 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 – Gen-
eral Data and Its Use.”
Switching between the off–state and the on–state may tra-
verse any load line provided neither rated peak current (IDM)
nor rated voltage (VDSS) is exceeded, and that the transition
time (tr, tf) does not exceed 10 µs. In addition the total power
averaged over a complete switching cycle must not exceed
(TJ(MAX) – TC)/(R
θJC).
A power MOSFET designated E–FET can be safely used
in switching circuits with unclamped inductive loads. For reli-
able operation, the stored energy from circuit inductance dis-
sipated 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 non–linearly with an
increase of peak current in avalanche and peak junction tem-
perature.
Although many E–FETs can withstand the stress of drain–
to–source avalanche at currents up to rated pulsed current
(IDM), the energy rating is specified at rated continuous cur-
rent (ID), in accordance with industry custom. The energy rat-
ing must be derated for temperature as shown in the
accompanying graph (Figure 13). Maximum energy at cur-
rents below rated continuous ID can safely be assumed to
equal the values indicated.
TJ, STARTING JUNCTION TEMPERATURE (°C)
Figure 12. Maximum Rated Forward Biased
Safe Operating Area
Figure 13. Maximum Avalanche Energy versus
Starting Junction Temperature
40
25
50
75
100
125
200
ID = 9 A
I pk = 9 A
L = 4 mH
360
150
0
0.1
VDS, DRAIN–TO–SOURCE VOLTAGE (VOLTS)
1
10
RDS(on) LIMIT
THERMAL LIMIT
PACKAGE LIMIT
0.01
VGS = 10 V
SINGLE PULSE
TC = 25°C
10
0.1
dc
10 ms
1
100
100
Mounted on 2” sq. FR4 board (1” sq. 2 oz. Cu 0.06”
thick single sided), 10s max.
1 ms
100
µs
10
µs
80
240
400
120
280
440
160
320
480


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