AMIS30621C6213RG ON Semiconductor, AMIS30621C6213RG Datasheet - Page 17

• Manufacturer Part Number: AMIS30621C6213RG
• Description: IC MOTOR DRIVER/CTLR 20-SOIC
• Manufacturer: ON Semiconductor

Specifications of AMIS30621C6213RG

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: 800mA
• Voltage - Supply: 6.5 V ~ 29 V
• Operating Temperature: -40°C ~ 165°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Position Periodicity
from –4096 to +4095 in half−step to –32768 to +32767 in
1/16
positions lying on a circle. When executing the command
SetPosition, the position controller will set the
movement direction in such a way that the traveled distance
is minimal.
going from ActPos = +30000 to TagPos = –30000 is
clockwise.
several consecutive SetPosition commands can be
used.
3 cases can be distinguished (see also Figure 10 above):
•
•
•
Figure 9. Motion Direction is Function of Difference
Depending on the stepping mode the position can range
The figure below illustrates that the moving direction
If a counter clockwise motion is required in this example,
HW2 is connected to ground: R2GND or drawing 1
HW2 is connected to VBAT: R2VBAT or drawing 2
HW2 is floating: OPEN or drawing 3
1
th
micro−stepping mode. One can project all these
1 = R2GND
2 = R2VBAT
3 = OPEN
+10000
0
−10000
2
between ActPos and TagPos
3
+20000
−20000
Figure 10. Simplified Schematic Diagram of the HW2 Comparator
1 kW
TagPos = −30000
ActPos = +30000
Motion direction
HW2
S
S
BOT
TOP
http://onsemi.com
I→R
I/R
DriveLS
DriveHS
17
Hardwired Address HW2
shown of the HW2 comparator circuit.
DriveLS control lines are alternatively closing the top and
bottom switch connecting HW2 pin with a current to resistor
converter. Closing S
to GND. In that case the top I³ R converter output is low,
via the closed passing switch S
“R” comparator which output HW2_Cmp is high. Closing
bottom switch S
VBAT. The corresponding I³ R converter output is low and
via S
will be high.
S
S
PASS_B
PASS_T
In the drawing below, a simplified schematic diagram is
The HW2 pin is sensed via 2 switches. The DriveHS and
R
PASS_B
th
fed to the comparator. The output HW2_Cmp
‘‘R”−Comp
BOT
COMP
TOP
(DriveLS = 1) will sense a current to
HW2_Cmp
(DriveHS = 1) will sense a current
Debouncer
LOGIC
32 ms
PASS_T
this signal is fed to the
State
High
Low
Float