Datasheet

DRV101
16
SBVS008B
www.ti.com
DRV101
dc Tachometer Coupled to Motor
T
+12V
5
6
4
R
1
R
2
Duty Cycle
3
Speed Control
(1)
M
NOTE: (1) Select R
1
/R
2
ratio based on tachometer output voltage.
Input
(On/Off)
1
FIGURE 17. Constant Speed Motor Control.
FIGURE 18. DC Motor Speed Control Using AC Tachometer.
One-Shot
–15V
5nF
NP0
VFC32
0V to +10V
1kΩ
40kΩ
DRV101
2
DC
Motor
Duty Cycle
Adjust
3
5
6
4
1
100kΩ
470kΩ
Frequency In
22kΩ
47kΩ
10kΩ
M
T
AC
Tachometer
Coupled to Motor
+40V
+15V
+15V
0.5µF
1nF
2N2222
Speed Control Input
V
OUT
Delay Adjust
Open circuit will
provide 3.4V
“on” signal