DRV102 Datasheet, PDF (18/23 Pages) Burr-Brown (TI) – PWM SOLENOID/VALVE DRIVER

Input
(On/Off)
Speed Control⁽¹⁾
DRV102
5
+12V
1
6
Out
2
3
4
M
Delay
Adjust
R₁
R₂
dc Tachometer
Coupled to Motor
T
NOTE: (1) Select R₁/R₂ ratio based on tachometer output voltage.
FIGURE 19. Constant Speed Motor Control.
+15V
22kΩ
1nF _100kΩ
47kΩ
2N2222
Speed Control Input
0V to +10V
Open circuit will
provide 3.4V
“on” signal
1
DRV102
5
+40V
6
40kΩ
2
3
4
M
Delay Adjust
470kΩ
Frequency In
10kΩ
+15V
One-Shot
0.5µF
1kΩ
V_OUT
AC
T ^Tachometer
Coupled to Motor
5nF
–15V
NP0
VFC32
FIGURE 20. DC Motor Speed Control Using AC Tachometer.
18
DRV102
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SBVS009A