Datasheet

DRV102
18
SBVS009B
www.ti.com
FIGURE 19. Constant Speed Motor Control.
FIGURE 20. DC Motor Speed Control Using AC Tachometer.
One-Shot
–15V
5nF
NP0
VFC32
0V to +10V
1kΩ
40kΩ
DRV102
23
5
6
1
100kΩ
470kΩ
Frequency In
22kΩ
47kΩ
10kΩ
M
T
AC
Tachometer
Coupled to Motor
+15V
+15V
0.5µF
1nF
2N2222
Speed Control Input
V
OUT
Delay Adjust
Open circuit will
provide 3.4V
“on” signal
4
+40V
DRV102
dc Tachometer
Coupled to Motor
T
R
1
R
2
34
Speed Control
(1)
M
NOTE: (1) Select R
1
/R
2
ratio based on tachometer output voltage.
Input
(On/Off)
1
5
+12V
6
Out
2
Delay
Adjust