iC-Haus iC-PVS, Руководство пользователя, Страница: 34 / 51

preliminary preliminary
iC-PVS
LINEAR/OFF-AXIS
BATTERY-BUFFERED ABSOLUTE POSITION HALL SENSOR
Rev A2, Page 34/51
ENAC Addr. 0x13; bit 3 reset: 0
Code Amplitude Control
0 Disabled
1 Enabled (continuously)
Table 43: Amplitude Control Unit Activation
CURRENT CONSUMPTION IN BATTERY MODE
In this chapter, all values for angular velocity and ac-
celeration refer to one magnetic period, i.e. one north-
south pole pair sequence = 360
° electrical. A velocity
of one pole pair per second relates to 360 ° e per sec =
1 Hz
e
= 60 ele. periods per minute.
The current consumption of the iC-PVS can be config-
ured by parameter A_MAX. Besides the current con-
sumption, this parameter sets the maximum angular ac-
celeration (from complete halt) supported by the iC-PVS
in the respective configuration. The maximum applica-
tion specific deceleration (braking) is not relevant for
the selection of parameter A_MAX. The relationship
between maximum acceleration and current consump-
tion is shown in Table 44. For accelerations below
42
·
10
3
rad
e
/
s
2
, the typical current consumption is be-
low 10
µ
A.
For applications where only sporadic motor movement
is expected during battery supply, Table 44 mainly de-
fines the current consumed by iC-PVS. Additionally,
Table 45 gives typical values in case of enduring move-
ment at a certain angular velocity during battery supply.
A_MAX(2:0) Addr. 0x0A; bit 2:0 reset: 000
Code
α
max
[
◦
e
s
2
]
α
max
[
rad
e
s
2
] typ
I
avg
[
µ
A ]
max
I
avg
[
µ
A ]
0x0 160
·
10
6
2700
·
10
3
80 120
0x1 40
·
10
6
700
·
10
3
40 60
0x2 10
·
10
6
170
·
10
3
20 30
0x3 2.5
·
10
6
42
·
10
3
10 15
0x4 625
·
10
3
10
·
10
3
5 10
0x5 160
·
10
3
2.5
·
10
3
3 7
0x6 40
·
10
3
0.65
·
10
3
2.5 6
0x7 10
·
10
3
0.15
·
10
3
2 5
Note: The values for the maximum permissible angular
acceleration refer to one magnetic period and have
to be divided by the number of magnetic periods per
rotation.
Table 44: Maximum supported angular acceleration
(from shaft halt) and average current con-
sumption on shaft halt or slow angular veloc-
ity. V(VBAT) = 3.6 V, V(PRE) < 0.5 V.
I(VBAT) for magnetic input
frequency
f
mag
[ Hz ]
f
mag
[ Hz ] I
avg
[
µ
A ] I
avg
[
µ
A ] I
avg
[
µ
A ] I
avg
[
µ
A ] I
avg
[
µ
A ] I
avg
[
µ
A ] I
avg
[
µ
A ] I
avg
[
µ
A ]
magnetic
input freq. A_MAX=111 A_MAX=110 A_MAX=101 A_MAX=100 A_MAX=011 A_MAX=010 A_MAX=001 A_MAX=000
0 2 2.5 3 5 10 20 40 80
< 2 2 2.5 3 5 10 20 40 80
< 4 2.5 2.5 3 5 10 20 40 80
< 8 3 3 3 5 10 20 40 80
< 16 5 5 5 5 10 20 40 80
< 33 10 10 10 10 10 20 40 80
< 66 20 20 20 20 20 20 40 80
< 133 40 40 40 40 40 40 40 80
< 266 80 80 80 80 80 80 80 80
< 533 150 150 150 150 150 150 150 150
< 1066 300 300 300 300 300 300 300 300
< 2133 600 600 600 600 600 600 600 600
< 8000 1500 1500 1500 1500 1500 1500 1500 1500
Table 45: Average current consumption vs. angular velocity. Typical values for V(VBAT) = 3.6 V, T
j
= 27 ° C and
V(PRE) < 0.5 V.