R4851 查看數據表（PDF） - Intersil
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R4851 Datasheet PDF : 10 Pages
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HUF75639S3R4851
Typical Performance Curves (Continued)
1.2
ID = 250µA
1.1
1.0
0.9
-80 -40
0
40
80 120 160 200
TJ, JUNCTION TEMPERATURE (oC)
FIGURE 11. NORMALIZED DRAIN TO SOURCE BREAKDOWN
VOLTAGE vs JUNCTION TEMPERATURE
10
3000
2500
2000
1500
CISS
VGS = 0V, f = 1MHz
CISS = CGS + CGD
CRSS = CGD
COSS ≈ CDS + CGD
1000
500
0
0
COSS
CRSS
10
20
30
40
50
60
VDS, DRAIN TO SOURCE VOLTAGE (V)
FIGURE 12. CAPACITANCE vs DRAIN TO SOURCE VOLTAGE
8
6
4
WAVEFORMS IN
DESCENDING ORDER:
2
ID = 56A
ID = 37A
VDD = 50V
ID = 18A
0
0
10
20
30
40
50
60
Qg, GATE CHARGE (nC)
NOTE: Refer to Intersil Application Notes AN7254 and AN7260.
FIGURE 13. GATE CHARGE WAVEFORMS FOR CONSTANT GATE CURRENT
Test Circuits and Waveforms
VARY tP TO OBTAIN
REQUIRED PEAK IAS
RG
VGS
tP
0V
VDS
L
DUT
+
VDD
-
IAS
0.01Ω
FIGURE 14. UNCLAMPED ENERGY TEST CIRCUIT
5
tP
IAS
BVDSS
VDS
VDD
0
tAV
FIGURE 15. UNCLAMPED ENERGY WAVEFORMS
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