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参数资料
| 型号： | MMFT3055E |
| 厂商： | MOTOROLA INC |
| 元件分类： | 小信号晶体管 |
| 英文描述： | MEDIUM POWER TMOS FET 1.7 AMP 60 VOLTS |
| 中文描述： | 1700 mA, 60 V, N-CHANNEL, Si, SMALL SIGNAL, MOSFET |
| 封装： | CASE 318E-04, 4 PIN |
| 文件页数： | 4/10页 |
| 文件大小： | 238K |
| 代理商： | MMFT3055E |
4
Motorola TMOS Power MOSFET Transistor Device Data
FORWARD BIASED SAFE OPERATING AREA
The FBSOA curves define the maximum drain–to–source
voltage and drain current that a device can safely handle
when it is forward biased, or when it is on, or being turned on.
Because these curves include the limitations of simultaneous
high voltage and high current, up to the rating of the device,
they are especially useful to designers of linear systems. The
curves are based on an ambient temperature of 25
°
C and a
maximum junction temperature of 150
°
C. Limitations for re-
petitive pulses at various ambient temperatures can be de-
termined by using the thermal response curves. Motorola
Application Note, AN569, “Transient Thermal Resistance–
General Data and Its Use” provides detailed instructions.
SWITCHING SAFE OPERATING AREA
The switching safe operating area (SOA) is the boundary
that the load line may traverse without incurring damage to
the MOSFET. The fundamental limits are the peak current,
IDM and the breakdown voltage, BVDSS. The switching SOA
is applicable for both turn–on and turn–off of the devices for
switching times less than one microsecond.
Figure 7. Maximum Rated Forward Biased
Safe Operating Area
VGS = 20 V
SINGLE PULSE
TA = 25
°
C
DC
10
I
0.1
1
0.1
0.01
1
10
100
VDS, DRAIN–TO–SOURCE VOLTAGE (VOLTS)
20 ms
100 ms
1 s
500 ms
RDS(on) LIMIT
THERMAL LIMIT
PACKAGE LIMIT
1.0
0.1
0.001
1.0E–05
r
t, TIME (s)
0.1
0.01
0.2
0.02
0.01
D = 0.5
SINGLE PULSE
(
0.05
R
θ
JA(t) = r(t) R
θ
JA
R
θ
JA = 156
°
C/W MAX
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1
TJ(pk) – TA = P(pk) R
θ
JA(t)
P(pk)
t1
t2
DUTY CYCLE, D = t1/t2
Figure 8. Thermal Response
1.0E–04
1.0E–03
1.0E–02
1.0E–01
1.0E+00
1.0E+01
COMMUTATING SAFE OPERATING AREA (CSOA)
The Commutating Safe Operating Area (CSOA) of Figure 10 defines the limits of safe operation for commutated source–drain
current versus re–applied drain voltage when the source–drain diode has undergone forward bias. The curve shows the limita-
tions of IFM and peak VDS for a given rate of change of source current. It is applicable when waveforms similar to those of Figure
9 are present. Full or half–bridge PWM DC motor controllers are common applications requiring CSOA data.
Device stresses increase with increasing rate of change of source current so dIS/dt is specified with a maximum value. Higher
values of dIS/dt require an appropriate derating of IFM, peak VDS or both. Ultimately dIS/dt is limited primarily by device, package,
and circuit impedances. Maximum device stress occurs during trr as the diode goes from conduction to reverse blocking.
VDS(pk) is the peak drain–to–source voltage that the device must sustain during commutation; IFM is the maximum forward
source–drain diode current just prior to the onset of commutation.
VR is specified at 80% rated BVDSS to ensure that the CSOA stress is maximized as IS decays from IRM to zero.
RGS should be minimized during commutation. TJ has only a second order effect on CSOA.
Stray inductances in Motorola’s test circuit are assumed to be practical minimums. dVDS/dt in excess of 10 V/ns was at-
tained with dIS/dt of 400 A/
μ
s.
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相关代理商/技术参数 |
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|---|---|
| MMFT3055EL | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:MEDIUM POWER LOGIC LEVEL TMOS FET 1.5 AMP 60 VOLTS |
| MMFT3055ET1 | 制造商:ON Semiconductor 功能描述:Trans MOSFET N-CH 60V 1.7A 4-Pin(3+Tab) SOT-223 T/R 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| MMFT3055V | 制造商:ON Semiconductor 功能描述:MOSFET N LOGIC SOT-223 |
| MMFT3055VL | 制造商:ON Semiconductor 功能描述:MOSFET N SOT-223 |
| MMFT3055VT1 | 制造商:ON Semiconductor 功能描述:Trans MOSFET N-CH 60V 1.7A 4-Pin(3+Tab) SOT-223 T/R |
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