IRFB4321PBF_15 datasheet(4/8 Pages) IRF

Part #	IRFB4321PBF

Description	High Efficiency Synchronous Rectification in SMPS

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Manufacturer	IRF [International Rectifier]

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IRFB4321PbF

4

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Fig 8. Maximum Safe Operating Area

Fig 10. Drain-to-Source Breakdown Voltage

Fig 7. Typical Source-Drain Diode

Forward Voltage

Fig 11. Typical COSS Stored Energy

Fig 9. Maximum Drain Current vs.

Case Temperature

Fig 12. Maximum Avalanche Energy Vs. DrainCurrent

0.20.4

0.60.8

1.01.2

1.4

VSD, Source-to-Drain Voltage (V)

0.1

1

10

100

1000

TJ = 25°C

TJ = 175°C

VGS = 0V

-60 -40 -20 0

20 40 60 80 100 120 140 160 180

TJ , Junction Temperature (°C)

140

150

160

170

180

190

0

20

40

60

80

100

120

140

160

VDS, Drain-to-Source Voltage (V)

0.0

1.0

2.0

3.0

4.0

5.0

25

50

75

100

125

150

175

Starting TJ, Junction Temperature (°C)

0

100

200

300

400

500

I D

TOP

13A

20A

BOTTOM

50A

1

10

100

1000

VDS , Drain-toSource Voltage (V)

0.1

1

10

100

1000

Tc = 25°C

Tj = 175°C

Single Pulse

1msec

10msec

OPERATION IN THIS AREA

LIMITED BY RDS(on)

100μsec

DC

25

50

75

100

125

150

175

TC , Case Temperature (°C)

0

10

20

30

40

50

60

70

80

90

LIMITED BY PACKAGE

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