NVMD4N03 datasheet(6/8 Pages) ONSEMI

Part #	NVMD4N03

Description	Power MOSFET 4 A, 30 V, N?묬hannel SO?? Dual

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NTMD4N03, NVMD4N03

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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

forward biased. Curves are based upon maximum peak

junction 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

traverse 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 ms. In addition the

total power averaged over a complete switching cycle must

not exceed (TJ(MAX) − TC)/(RqJC).

A power MOSFET designated E−FET can be safely used

in switching circuits with unclamped inductive loads. For

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.

Figure 11. Maximum Rated Forward Biased

Safe Operating Area

0.1

VDS, DRAIN−TO−SOURCE VOLTAGE (VOLTS)

1

10

RDS(on) LIMIT

THERMAL LIMIT

PACKAGE LIMIT

VGS = 20 V

SINGLE PULSE

TC = 25°C

10

0.01

dc

10 ms

1.0

100

1.0 ms

0.1

Figure 12. Maximum Avalanche Energy versus

Starting Junction Temperature

80

0

TJ, STARTING JUNCTION TEMPERATURE (°C)

25

125

150

100

75

50

60

ID = 4.45 A

20

40

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