RFM12N18 Datasheet, PDF (4/4 Pages) Intersil Corporation – 12A, 180V and 200V, 0.250 Ohm, N-Channel Power MOSFETs

RFM12N18, RFM12N20, RFP12N18, RFP12N20
Typical Performance Curves Unless Otherwise Specified (Continued)
2
I_D = 12A, V_GS = 10V
1.5
1.3
V_GS = V_DS
1.2 ^{ID = 250µA}
1.1
1
1
0.9
0.5
0
-50
0
50
100
150
200
T_J, JUNCTION TEMPERATURE (^oC)
FIGURE 7. NORMALIZED DRAIN TO SOURCE ON
RESISTANCE vs JUNCTION TEMPERATURE
0.8
0.7
0.6
-50
0
50
100
150
200
T_J, JUNCTION TEMPERATURE (^oC)
FIGURE 8. NORMALIZED GATE THRESHOLD VOLTAGE vs
JUNCTION TEMPERATURE
1600
1400
1200
1000
C_ISS
V_GS = 0V, f = 1MHz
C_ISS = C_GS + C_GD
C_RSS = C_GD
C_OSS ≈ C_DS + C_GS
800
600
C_OSS
400
200
C_RSS
0
0
10
20
30
40
50
V_DS, DRAIN TO SOURCE VOLTAGE (V)
FIGURE 9. CAPACITANCE vs DRAIN TO SOURCE VOLTAGE
200
10
V_DS
8
150
V_DD = BV_DSS
GATE
SOURCE
V_DD = BV_DSS
VOLTAGE
6
100
R_L = 16.67Ω
I_G(REF) = 1mA
V_GS = 10V
4
50
0.75BV_DSS 0.75BV_DSS
0.50BV_DSS 0.50BV_DSS
2
0.25BV_DSS 0.25BV_DSS
DRAIN SOURCE VOLTAGE
0
I_G(REF)
20 _IG(ACT)
0
I_G(REF)
t, TIME (µs)
80 _IG(ACT)
NOTE: Refer to Harris Application Notes AN7254 and AN7260.
FIGURE 10. NORMALIZED SWITCHING WAVEFORMS FOR
CONSTANT GATE CURRENT
Test Circuits and Waveforms
R_L
+
R_G
V_DD
-
DUT
V_GS
FIGURE 11. SWITCHING TIME TEST CIRCUIT
V_DS
t_ON
t_d(ON)
t_r
90%
t_OFF
t_d(OFF)
t_f
90%
10%
0
V_GS
10%
0
50%
PULSE WIDTH
10%
90%
50%
FIGURE 12. RESISTIVE SWITCHING WAVEFORMS
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