
IR2181 ( 4 ) (S) & (PbF)
140
120
140
120
140v
100
100
70v
80
60
40
20
140v
70v
0v
80
60
40
20
0v
1
10
100
1000
1
10
100
1000
Frequency (KHz)
Fig u re 29. IR 2181s vs . Fre q u e n cy (IR FB C 20),
R gate =33 ? , V C C =15V
Frequency (KHz)
Fig u re 30. IR 2181s vs . Fre q u e n cy (IR FB C 30),
R gate =22 ? , V C C =15V
140
120
100
80
60
40
140v 70v
0v
140
120
100
80
60
40
140V 70V 0V
20
1
10 100
Frequency (KHz)
1000
20
1
10 100
Frequency (KHz)
1000
Fig u re 31. IR 2181s vs . Fre q u e n cy (IR FB C 40),
R gate =15 ? , V C C =15V
www.irf.com
Fig u re 32. IR 2181s vs . Fre q u e n cy (IR FP E50),
R gate =10 ? , V C C =15V
17