AN1625 STMicroelectronics, AN1625 Datasheet - Page 22

• Manufacturer Part Number: AN1625
• Description: L6235 THREE PHASE BRUSHLESS DC MOTOR DRIVER
• Manufacturer: STMicroelectronics

AN1625 APPLICATION NOTE
Figure 22. Current in the three phases and the signal of one of the hall effect sensors.
Figure 23. Input Data.
22/39
Maximum Drain-Source ON Resistance
Maximum BEMF Voltage
Max imum diode voltage
Sensing Resistance
Quiescent Current
Motor Resistance
Motor Inductance
Supply Voltage
Polar Couples
Peak Current
Motor Speed
Off-Time
Hall
I
I
I
2
3
1
Application Input Values
I
Device Input Values
Motor Input Values
t
rise
I
tOFF
( f
Ron
Rm
Lm
Ipk
HALL
Vd
Vb
Vs
Rs
sp
Iq
n
1 / f
I
= f
I
HALL
pk
EL
t
t
fall
rise
T = 1 / f
=
=
=
=
=
=
=
=
=
=
=
=
= n * f
= T
I
5.60E-01
1.20E+00
5.50E-03
1.00E+01
8.00E-04
2.10E+00
1
2.40E+01
1.50E+00
8.00E-06
3.30E-01
1.00E+04
I
Input D ata
pk
mech
I
EL
)
t
t
rise
fall
I
I
pk
t
fall
[rpm]
[ ]
[H]
[ ]
[ ]
[V]
[A]
[V]
[V]
[A]
[s]
-
Average Value
High-Side and
Low-Side
between