POWER CMOS DRIVERS WITH VOLTAGE TRIPLER
TC4626
TC4627
SWITCHING TIME TEST CIRCUITS
V
V
BOOST
BOOST
0.1 µF
Ceramic
0.1µF
Ceramic
C
C
3
3
10 µF
10 µF
6
6
7
2
5
7
2
5
INPUT
OUTPUT
INPUT
OUTPUT
C
= 1000 pF
C
= 1000 pF
L
L
C
C
1
1
C1+
C1-
C1+
C1-
10 µF
10 µF
1
3
1
3
8
8
TC4627
4
TC4626
4
V
= 5V
C
2
V
= 5V
C
2
DD
DD
C
2
10 µF
C
2
10 µF
+5V
90%
+5V
90%
INPUT*
INPUT*
10%
0V
10%
0V
t
t
D1
D2
t
t
F
R
V
BOOST
V
BOOST
90%
90%
90%
90%
t
t
D1
D2
t
t
F
OUTPUT
OUTPUT
0V
R
10%
10%
10%
10%
0V
* 100kHz SQUARE WAVE, tr = tf < 10nsec
* 100kHz SQUARE WAVE, tr = tf < 10nsec
Figure 1. Inverting Driver Switching Time
Figure 2. Non-Inverting Driver Switching Time
4-274
TELCOM SEMICONDUCTOR, INC.
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
