RFM12N18 Просмотр технического описания (PDF) - Intersil
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RFM12N18 Datasheet PDF : 4 Pages
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RFM12N18, RFM12N20, RFP12N18, RFP12N20
Typical Performance Curves Unless Otherwise Specified (Continued)
2
ID = 12A, VGS = 10V
1.5
1.3
VGS = VDS
1.2 ID = 250µA
1.1
1
1
0.9
0.5
0
-50
0
50
100
150
200
TJ, 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
TJ, JUNCTION TEMPERATURE (oC)
FIGURE 8. NORMALIZED GATE THRESHOLD VOLTAGE vs
JUNCTION TEMPERATURE
1600
1400
1200
1000
CISS
VGS = 0V, f = 1MHz
CISS = CGS + CGD
CRSS = CGD
COSS ≈ CDS + CGS
800
600
COSS
400
200
CRSS
0
0
10
20
30
40
50
VDS, DRAIN TO SOURCE VOLTAGE (V)
FIGURE 9. CAPACITANCE vs DRAIN TO SOURCE VOLTAGE
200
10
VDS
8
150
VDD = BVDSS
GATE
SOURCE
VDD = BVDSS
VOLTAGE
6
100
RL = 16.67Ω
IG(REF) = 1mA
VGS = 10V
4
50
0.75BVDSS 0.75BVDSS
0.50BVDSS 0.50BVDSS
2
0.25BVDSS 0.25BVDSS
DRAIN SOURCE VOLTAGE
0
IG(REF)
20 IG(ACT)
0
IG(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
RL
+
RG
VDD
-
DUT
VGS
FIGURE 11. SWITCHING TIME TEST CIRCUIT
VDS
tON
td(ON)
tr
90%
tOFF
td(OFF)
tf
90%
10%
0
VGS
10%
0
50%
PULSE WIDTH
10%
90%
50%
FIGURE 12. RESISTIVE SWITCHING WAVEFORMS
5-4
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