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參數(shù)資料
| 型號： | MMDF4207R2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | JFETs |
| 英文描述： | 4.8 A, 20 V, 0.033 ohm, P-CHANNEL, Si, POWER, MOSFET |
| 封裝： | SO-8 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 196K |
| 代理商： | MMDF4207R2 |
MMDF4207
7
Motorola TMOS Power MOSFET Transistor Device Data
I S
,SOURCE
CURRENT
t, TIME
Figure 11. Reverse Recovery Time (trr)
di/dt = 300 A/
s
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 s. 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.
Figure 12. Maximum Rated Forward Biased
Safe Operating Area
0.1
VDS, DRAIN–TO–SOURCE VOLTAGE (VOLTS)
0.1
1
I D
,DRAIN
CURRENT
(AMPS)
RDS(on) LIMIT
THERMAL LIMIT
PACKAGE LIMIT
VGS = 2.5 V
SINGLE PULSE
TC = 25°C
10
dc
1
1000
100
Figure 13. Maximum Avalanche Energy versus
Starting Junction Temperature
25
TJ, STARTING JUNCTION TEMPERATURE (°C)
200
E
AS
,SINGLE
PULSE
DRAIN–T
O–SOURCE
75
0
50
500
150
100
125
400
A
V
ALANCHE
ENERGY
(mJ)
10
10 ms
1 ms
VDD = 20 V
VGS = 4.5 V
IL = 5 A
L = 40 mH
Rg = 25 W
100
300
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