English
Language : 

IRF7604 Datasheet, PDF (5/8 Pages) International Rectifier – Power MOSFET(Vdss=-20V, Rds(on)=0.09ohm)
IRF7604
-4.5 V
QGS
VG
QG
QGD
Charge
Fig 9a. Basic Gate Charge Waveform
Current Regulator
Same Type as D.U.T.
50KΩ
12V
.2µF
.3µF
D.U.T.
-
+VDS
VGS
-3mA
IG
ID
Current Sampling Resistors
Fig 9b. Gate Charge Test Circuit
100
VDS
VGS
RG
D.U.T.
-4.5V
Pulse Width ≤ 1 µs
Duty Factor ≤ 0.1 %
-
+ VDD
Fig 10a. Switching Time Test Circuit
VGS
10%
td(on) tr
td(off) tf
90%
VDS
Fig 10b. Switching Time Waveforms
D = 0.50
0.20
10
0.10
0.05
0.02
1
0.01
0.1
0.00001
PDM
t1
t2
SINGLE PULSE
(THERMAL RESPONSE)
Notes:
1. Duty factor D = t1 / t 2
2. Peak TJ = P DM x ZthJA + TA
0.0001
0.001
0.01
0.1
1
t1 , Rectangular Pulse Duration (sec)
10
100
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Ambient