Datasheet

8 SBLM23xx Motor Controller Datasheet Version 1.2 July 25, 2020
TABLE 1.
Pin Number 1 2 3 4 5 6
Signal 5V Hall C Hall B Hall A Ground
Hall Sensor vs Motor Output sequencing
The controller requires the Hall sensors inside the motor to be 120 degrees apart. The controller’s 3-phase
bridge will activate each of the motor winding according to the sequence shown in the figure below..
U
VW
1234561
4
2
5
3
6
4
1
5
2
6
3
Hall A
Hall B
Hall C
U
V
W
+
--
-- --
-- --
--
++ ++
++ ++
++ +
FIGURE 8. Hall Sensors Sequence
Connection to SSI Absolute Encoder
In Sinusoidal Mode, the controller can use motors equipped with absolute angle sensors with SSI interface.
When enabled, the SSI signals are found on the 6-pin Molex connectors that is otherwise used for the Hall
Sensors. The controller issues a differential clock signal and expects a up to 16-bit differential data signal from
the encoder. When two motors are used, these signals must be connected to both sensors. Serial data from
each sensor is captured on separate input pins.
61
6
1
FIGURE 9. Motor sensor connector used for SSI Encoders
TABLE 2.
Pin Number 1 2 3 4 5 6
Signal 5V Clock – Clock + Data – Data + Ground