1.5A DUAL HIGH-SPEED
POWER MOSFET DRIVERS
1
2
3
4
5
6
7
8
TC426
TC427
TC428
V
= 18V
V
= 18V
DD
DD
1µF
0.1µF
1µF
0.1µF
INPUT
1
2
OUTPUT
INPUT
1
2
OUTPUT
C
= 1000pF
L
C
= 1000pF
L
INPUT: 100kHz,
INPUT: 100kHz,
square wave,
square wave,
t
= tF
≤ 10nsec
RISE
ALL
t
= tF
≤ 10nsec
RISE
ALL
TC426
(1/2 TC428)
TC427
(1/2 TC428)
+5V
90%
+5V
90%
INPUT
0V
INPUT
10%
10%
t
t
0V
D1
D2
t
t
F
R
18V
18V
90%
90%
90%
90%
t
t
D1
D2
OUTPUT
t
t
F
OUTPUT
0V
R
10%
10%
10%
10%
0V
Test Figure 1. Inverting Driver Switching Time Test Circuit
Test Figure 2. Noninverting Driver Switching Time Test Circuit
VOLTAGE DOUBLER
+ 15V
30.
29.
28.
+
0.1µF
27.
26.
25.
4.7µF
1N4001
–
6
24.
1N4001
V
OUT
–
+
2
1/2
TC426
23.
22.
7
f
= 10kHz
IN
10µF
+
3
47µF
–
0
10 20 30 40 50 60 70 80 90 100
(mA)
I
OUT
VOLTAGE INVERTER
+ 15V
-5
-6
-7
+
–
0.1µF
4.7µF
-8
-9
-10
-11
6
1N4001
V
OUT
+
–
2
1/2
-12
-13
TC426
7
f
= 10kHz
IN
10µF
–
3
47µF
1N4001
+
-14
0
10 20 30 40 50 60 70 80 90 100
(mA)
I
OUT
TELCOM SEMICONDUCTOR, INC.
4-173
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
