MTP20N20 データシートの表示（PDF） - Motorola => Freescale
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MTP20N20 Datasheet PDF : 8 Pages
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12
10
Q1
8
180
QT
150
Q2
VGS
120
6
90
ID = 20 A
4
TJ = 25°C 60
2
30
Q3
VDS
0
0
0
10
20
30
40
50
60
QG, TOTAL GATE CHARGE (nC)
Figure 8. Gate–To–Source and Drain–To–Source
Voltage versus Total Charge
1000
VDD = 100 V
ID = 20 A
VGS = 10 V
TJ = 25°C
MTP20N20E
100
tr
tf
td(off)
td(on)
10
1
10
100
RG, GATE RESISTANCE (OHMS)
Figure 9. Resistive Switching Time
Variation versus Gate Resistance
DRAIN–TO–SOURCE DIODE CHARACTERISTICS
20
VGS = 0 V
16 TJ = 25°C
12
8
4
0
0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.0
VSD, SOURCE–TO–DRAIN VOLTAGE (VOLTS)
Figure 10. Diode Forward Voltage versus Current
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–General
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 the transition time
(tr,tf) do not exceed 10 µs. In addition the total power aver-
aged over a complete switching cycle must not exceed
(TJ(MAX) – TC)/(RθJC).
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 adjusted for operating conditions differing
from those specified. Although industry practice is to rate in
terms of energy, avalanche energy capability is not a con-
stant. The energy rating decreases non–linearly with an in-
crease of peak current in avalanche and peak junction
temperature.
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 current
(ID), in accordance with industry custom. The energy rating
must be derated for temperature as shown in the accompany-
ing graph (Figure 12). Maximum energy at currents below
rated continuous ID can safely be assumed to equal the val-
ues indicated.
Motorola TMOS Power MOSFET Transistor Device Data
5
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