IRF7503

Fig 10a. Switching Time Test Circuit

+

-

10V

Pulse Width

≤ 1 µs

Duty Factor

≤ 0.1 %

D.U.T.

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

10V

Charge

Fig 9a. Basic Gate Charge Waveform

D.U.T.

3mA

.3

µF

50K

Ω

.2

µF

12V

Current Regulator

Same Type as D.U.T.

Current Sampling Resistors

+

-

90%

10%

Fig 9b. Gate Charge Test Circuit

Fig 10b. Switching Time Waveforms

0.1

1

10

100

1000

0.00001

0.0001

0.001

0.01

0.1

1

10

100

Notes:

1. Duty factor D =

t / t

2. Peak T

= P

x Z

+ T

1

2

J

DM

thJA

A

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

SINGLEPULSE

(THERMALRESPONSE)