Datasheet > MTB75N05HDT4G

MTB75N05HDT4G

更新时间： 2024-02-09 04:51:56

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MTB75N05HDT4G 数据手册

MTB75N05HD

SAFE OPERATING AREA

The Forward Biased Safe Operating Area curves define

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

non–linearly with an increase of peak current in avalanche

and peak junction temperature.

the maximum simultaneous drain–to–source 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 ) 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.”

Although many E–FETs can withstand the stress of

drain–to–source avalanche at currents up to rated pulsed

Switching between the off–state and the on–state may

traverse any load line provided neither rated peak current

current (I

), the energy rating is specified at rated

) nor rated voltage (V

) is exceeded, and that the

continuous current (I ), in accordance with industry

DSS

transition time (t , t ) does not exceed 10 µs. In addition the

custom. The energy rating must be derated for temperature

as shown in the accompanying graph (Figure 12). Maximum

r f

total power averaged over a complete switching cycle must

not exceed (T

– T )/(R

energy at currents below rated continuous I can safely be

assumed to equal the values indicated.

J(MAX)

θJC

A power MOSFET designated E–FET can be safely used

in switching circuits with unclamped inductive loads. For

1000

500

= 20 V

SINGLE PULSE

= 25°C

I = 75 A

450

400

350

300

250

200

150

100

10 µs

100

100 µs

1 ms

10 ms

LIMIT

DS(on)

THERMAL LIMIT

PACKAGE LIMIT

0.1

100

125

150

175

V , DRAIN-TO-SOURCE VOLTAGE (VOLTS)

T , STARTING JUNCTION TEMPERATURE (°C)

Figure 12. Maximum Rated Forward Biased

Safe Operating Area

Figure 13. Maximum Avalanche Energy versus

Starting Junction Temperature

D = 0.5

0.2

(t) = r(t) R

θJC

= 1.0°C/W MAX

0.1

(pk)

θJC

0.1

0.05

D CURVES APPLY FOR POWER

PULSE TRAIN SHOWN

0.02

READ TIME AT t

0.01

- T = P

(t)

J(pk)

(pk) θJC

DUTY CYCLE, D = t /t

1 2

SINGLE PULSE

0.01

1.0E-Ă05

1.0E-Ă04

1.0E-Ă03

1.0E-Ă02

1.0E-Ă01

1.0E+00

1.0E+01

t, TIME (s)

Figure 14. Thermal Response

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