Datasheet

Figure 12 : Motor Current Control Circuit.
Note
: The input voltage level is compatible with L291 (5-BIT D/A converter).
Figure 13 : Bidirectional Speed Control of DC Motors.
2R3
°
R1
For circuit stability ensure that R
X
>where R
M
= internal resistance of motor.
R
M
V
s
2R
°
R1
The voltage available at the terminals of the motor is V
M
= 2 (V
i
⋅ ) + R
o
 ⋅ Ι
M
where R
o
 =
2R
X
and I
M
is the motor current.
L272
6/10