IRLR/U7807ZPbF

www.irf.com

5

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

Fig 9. Maximum Drain Current vs.

Case Temperature

Fig 10. Threshold Voltage vs. Temperature

25

50

75

100

125

150

175

TC , Case Temperature (°C)

0

10

20

30

40

50

LIMITED BY PACKAGE

-75

-50

-25

0

25

50

75

100 125 150 175

TJ , Temperature ( °C )

1.0

1.5

2.0

2.5

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)

1.796

0.000267

1.112

0.000607

0.842

0.004249

τ

J

τ

J

τ

1

τ

1

τ

2

τ

2

τ

3

τ

3

R

1

R

1

R

2

R

2

R

3

R

3

τ

τ

C

Ci= i

/Ri

Ci=

τi/Ri