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| HRF3205 Datasheet, PDF (5/9 Pages) Fairchild Semiconductor – 100A, 55V, 0.008 Ohm, N-Channel, Power MOSFETs | |||
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HRF3205, HRF3205S
Typical Performance Curves (Continued)
10
DUTY CYCLE - DESCENDING ORDER
0.5
0.2
0.1
0.05
0.02
1 0.01
0.1
0.01
10-5
PDM
SINGLE PULSE
10-4
t1
t2
NOTES:
DUTY FACTOR: D = t1/t2
PEAK TJ = PDM x ZθJC x RθJC + TC
10-3
10-2
10-1
100
101
t, RECTANGULAR PULSE DURATION (s)
FIGURE 11. NORMALIZED MAXIMUM TRANSIENT THERMAL IMPEDANCE
Test Circuits and Waveforms
VDS
L
VARY tP TO OBTAIN
REQUIRED PEAK IAS
RG
VGS
DUT
+
VDD
-
tP
0V
IAS
0
0.01â¦
tP
IAS
BVDSS
VDS
VDD
tAV
FIGURE 12. UNCLAMPED ENERGY TEST CIRCUIT
VDS
RL
VGS
IG(REF)
DUT
+
VDD
-
FIGURE 14. GATE CHARGE TEST CIRCUIT
FIGURE 13. UNCLAMPED ENERGY WAVEFORMS
VDD
Qgs
0
Qg(TOT)
Qgd
VGS
VDS
IG(REF)
0
FIGURE 15. GATE CHARGE WAVEFORM
©2001 Fairchild Semiconductor Corporation
HRF3205, HRF3205S Rev. B
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