IRF7458 datasheet(6/8 Pages) IRF

Part #	IRF7458

Description	Power MOSFET(Vdss=30V, Rds(on)max=8.0mohm, Id=14A)

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Manufacturer	IRF [International Rectifier]

Direct Link	http://www.irf.com

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6 / 8 page

IRF7458

6

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Fig 13. On-Resistance Vs. Gate Voltage

Fig 12. On-Resistance Vs. Drain Current

Fig 13a&b. Basic Gate Charge Test Circuit

and Waveform

Fig 14a&b. Unclamped Inductive Test circuit

and Waveforms

Fig 14c. Maximum Avalanche Energy

Vs. Drain Current

D.U.T.

VDS

ID

IG

3mA

VGS

.3

µF

50K

Ω

.2

µF

12V

Current Regulator

Same Type as D.U.T.

Current Sampling Resistors

+

-

VGS

QG

QGS

QGD

VG

Charge

t p

V (BR )DS S

I AS

R G

IAS

0.01

Ω

tp

D.U.T

L

VDS

+

-

VDD

DRIVE R

A

15 V

20V

25

50

75

100

125

150

0

200

400

600

800

Starting T , Junction Temperature ( C)

J

°

ID

TOP

BOTTOM

5.0A

9.0A

11A

0

20406080

100

120

ID , Drain Current (A)

0.004

0.008

0.012

0.016

0.020

VGS = 16V

VGS = 6.0V

VGS = 10V

4

6

8

10

12

14

16

VGS, Gate -to -Source Voltage (V)

0.006

0.008

0.010

0.012

0.014

0.016

ID = 14A

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