RFK25N18, RFK25N20
Typical Performance Curves Unless Otherwise Specified (Continued)
3
ID = 25A
VGS = 10V
PULSE DURATION = 80µs
2
1
0
-50
0
50
100
150
TJ, JUNCTION TEMPERATURE (oC)
FIGURE 7. NORMALIZED DRAIN TO SOURCE ON
RESISTANCE vs JUNCTION TEMPERATURE
3000
2000
CISS
VGS = 0V, f = 1MHz
CISS = CGS + CGD
CRSS = CGD
COSS ≈ CDS + CGD
1000
COSS
CRSS
0
0
10
20
30
40
50
VDS, DRAIN TO SOURCE VOLTAGE (V)
FIGURE 9. CAPACITANCE vs DRAIN TO SOURCE VOLTAGE
1.3
ID = 250µA
1.2 VGS = VDS
1.1
1.0
0.9
0.8
0.7
-50
0
50
100
150
TJ, JUNCTION TEMPERATURE (oC)
FIGURE 8. NORMALIZED GATE THRESHOLD VOLTAGE vs
JUNCTION TEMPERATURE
200
10
150
VDD = BVDSS
GATE
SOURCE
VDD = BVDSS
8
VOLTAGE
RL = 8Ω
6
100
IG(REF) = 2mA
VGS = 10V
4
0.75BVDSS 0.75BVDSS
50
0.50BVDSS
0.25BVDSS
0.50BVDSS
0.25BVDSS
2
DRAIN TO SOURCE VOLTAGE
0
0
20 IG(REF)
IG(ACT)
t, TIME (µs)
80 IG(REF)
IG(ACT)
NOTE: Refer to Intersil Application Notes AN7254 and AN7260.
FIGURE 10. NORMALIZED SWITCHING WAVEFORMS FOR
CONSTANT GATE CURRENT
4