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A4964 Datasheet(PDF) 73 Page - Allegro MicroSystems

Part # A4964
Description  Sensorless Sinusoidal Drive BLDC Controller
PDF  92 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A4964 Datasheet(HTML) 73 Page - Allegro MicroSystems

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Sensorless Sinusoidal Drive BLDC Controller
A4964
73
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Serial Register Reference
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
26: Phase advance
1
1
0
1
0
WR
PAM
KIP1
KIP0
PA5
PA4
PA3
PA2
PA1
PA0
P
0
0
0
0
0
0
0
0
0
27: Motor function
1
1
0
1
1
WR
LEN
GTS OVM1 OVM0 DRM
BRK
DIR
RUN
P
0
0
0
0
0
0
0
0
0
Register 26: Phase Advance Select
PAM
Phase Advance Mode
PAM
Phase Advance Mode
Default
0
Manual
D
1
Automatic
KIP[1:0]
Auto Phase Advance Control Gain
KIP1
KIP0
Gain
Default
0
0
1
D
0
1
2
1
0
4
1
1
8
PA[5:0]
Phase Advance
θADV = n × 0.7°(elec)
|n=0..62
θADV = 60°(elec)
|n=63
where n is a positive integer defined by PA[5:0],
e.g. when PA[5:0] = [00 1000] then θADV = 5.6°.
The range of θADV is 0 to 43.4° and 60°.
Note: All angles refer to the electrical cycle.
Register 27: Motor Function Control
LEN
Lin Enable
LEN
LIN State
Default
0
Standby
D
1
Active
Register 27: Motor Function Control (continued)
GTS
Go to Sleep Command
GTS
Sleep transition
Default
0
No change in state
D
1
No change in state
1 → 0
No change in state
0 → 1
Enter sleep state if enabled
OVM[1:0] Overmodulation Select
OVM1
OVM0
Overmodulation
Default
0
0
None (100%)
D
0
1
112.5%
1
0
125%
1
1
150%
DRM
Drive Mode Select
DRM
Drive mode
Default
0
Sinusoidal
D
1
Trapezoidal
BRK
Brake Function Select
BRK
Brake Mode
Default
0
Brake disabled
D
1
Brake enabled
DIR
Rotation Direction Select
DIR
Direction
Default
0
Forward (Figure 6, Figure 7, and Table 1)
D
1
Reverse (Figure 6, Figure 7, and Table 1)
RUN
Run enable
RUN
Motor running status
Default
0
Disable outputs, coast motor
D
1
Start and run motor



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