IRLR/U7821

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5

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

Fig 9. Maximum Drain Current vs.

Case Temperature

25

50

75

100

125

150

175

0

10

20

30

40

50

60

70

T , Case Temperature ( C)

°

C

LIMITED BY PACKAGE

0.01

0.1

1

10

0.00001

0.0001

0.001

0.01

0.1

1

Notes:

1. Duty factor D =

t / t

2. Peak T

= P

x Z

+ T

1

2

J

DM

thJC

C

P

t

t

DM

1

2

t , Rectangular Pulse Duration (sec)

1

0.01

0.02

0.05

0.10

0.20

D = 0.50

SINGLE PULSE

(THERMAL RESPONSE)

-75 -50 -25

0

25

50

75 100 125 150 175 200

TJ , Temperature ( °C )

0.5

1.0

1.5

2.0

2.5

ID = 250µA

Fig 10. Threshold Voltage vs. Temperature