Datasheet

 
    
SLCS115E − DECEMBER 1986 − REVISED JULY 2003
15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
APPLICATION INFORMATION
C1
0.01 µF
(see Note B)
5 V
1/2 TLC393
Motor Speed Control
Potentiometer
+
−
+
−
10 kΩ
100 kΩ
10 kΩ
10 kΩ
1/2 TLC393
10 kΩ
5 V
DIR
EN
SN75603
Half-H Driver
12 V
Motor
DIR
EN
12 V
Direction
Control
S1
SPDT
5 V
5 V
C2
(see Note A)
5.1 kΩ
5.1 kΩ
12 V
SN75604
Half-H Driver
NOTES: A. The recommended minimum capacitance is 10 µF to eliminate common ground switching noise.
B. Adjust C1 for change in oscillator frequency.
Figure 19. Pulse-Width-Modulated Motor Speed Controller