1.5A DUAL HIGH-SPEED
POWER MOSFET DRIVERS
TC426
TC427
TC428
VDD
= 18V
1µF
1
VDD = 18V
0.1µF
1µF
0.1µF
2
3
INPUT
1
OUTPUT
CL = 1000pF
INPUT
1
OUTPUT
CL = 1000pF
INPUT: 100kHz,
square wave,
tRISE = tFALL
≤
10nsec
2
2
INPUT: 100kHz,
square wave,
tRISE = tFALL
≤
10nsec
TC426
(1/2 TC428)
TC427
(1/2 TC428)
+5V
INPUT
90%
+5V
INPUT
90%
0V
18V
OUTPUT
0V
10%
tD1
90%
tF
tD2
t
R
90%
0V
18V
10%
90%
tR
10%
tD2
90%
tF
10%
tD1
OUTPUT
0V
4
5
6
10%
10%
Test Figure 1. Inverting Driver Switching Time Test Circuit
Test Figure 2. Noninverting Driver Switching Time Test Circuit
VOLTAGE DOUBLER
+ 15V
30.
29.
28.
VOUT (V)
VOUT
+
–
47µF
0.1µF
+
–
4.7µF
1N4001
27.
26.
25.
24.
23.
22.
0
6
2
f IN = 10kHz
1/2
TC426
3
–
7
+
1N4001
10µF
10 20 30 40 50 60 70 80 90 100
IOUT (mA)
VOLTAGE INVERTER
+ 15V
+
0.1µF
–
-5
-6
-7
VOUT (V)
-8
-9
-10
-11
-12
-13
4.7µF
7
6
2
f IN = 10kHz
1/2
TC426
3
+
7
–
1N4001
–
+
VOUT
10µF
1N4001
47µF
-14
0
10 20 30 40 50 60 70 80 90 100
IOUT (mA)
8
4-173
TELCOM SEMICONDUCTOR, INC.
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