L6229Q Circuit description
Doc ID 15209 Rev 3 19/28
Figure 17. Tachometer speed control loop
Figure 18. t
PULSE
versus C
PUL
and R
PUL
C
REF2
R
PUL
C
PUL
R
DD
R
3
R
2
R
1
C
1
C
REF1
VREF
TACHO
H
1
TACHO
MONOSTABLE
RCPULSE
V
DD
V
REF
R
4
1 10 100
10
100
1
.
10
3
1
.
10
4
Cpul [nF]
tpulse [
μ
s]
R
PUL
= 100k
Ω
R
PUL
= 47k
Ω
R
PUL
= 20k
Ω
