4

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IRLR/U4343PbF & IRLU4343-701PbF

Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case

Fig 10. Threshold Voltage vs. Temperature

Fig 9. Maximum Drain Current vs. Case Temperature

Fig 7. Typical Source-Drain Diode Forward Voltage

Fig 8. Maximum Safe Operating Area

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

VSD, Source-to-Drain Voltage (V)

0.1

1.0

10.0

100.0

1000.0

TJ = 25°C

TJ = 175°C

VGS = 0V

0

1

10

100

1000

VDS , Drain-toSource Voltage (V)

1

10

100

1000

Tc = 25°C

Tj = 175°C

Single Pulse

1msec

10msec

OPERATION IN THIS AREA

LIMITED BY R DS(on)

100µsec

25

50

75

100

125

150

175

TJ , Junction Temperature (°C)

0

5

10

15

20

25

30

-75

-50

-25

0

25

50

75

100 125 150 175

TJ , Temperature ( °C )

0.5

1.0

1.5

2.0

ID = 250µA

1E-006

1E-005

0.0001

0.001

0.01

0.1

t1 , Rectangular Pulse Duration (sec)

0.001

0.01

0.1

1

10

0.20

0.10

D = 0.50

0.02

0.01

0.05

SINGLE PULSE

( THERMAL RESPONSE )

Notes:

1. Duty Factor D = t1/t2

2. Peak Tj = P dm x Zthjc + Tc

Ri (°C/W)

τi (sec)

1.359

0.00135

0.5409

0.003643

τ

J

τ

J

τ

1

τ

1

τ

2

τ

2

R

1

R

1

R

2

R

2

τ

τ

C

Ci= i

/Ri

Ci=

τi/Ri