AMIS30623C623BRG ON Semiconductor, AMIS30623C623BRG Datasheet - Page 17

• Manufacturer Part Number: AMIS30623C623BRG
• Description: IC MOTOR DRIVER/CTLR 32-QFP
• Manufacturer: ON Semiconductor

Specifications of AMIS30623C623BRG

• 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: 32-VSQFP
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3 cases can be distinguished (see also Figure 10 above):
•
•
•
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
1 = R2GND
2 = R2VBAT
3 = OPEN
Figure 9. Motion Direction is Function of
Difference between ActPos and TagPos
+10000
0
−10000
2
3
+20000
−20000
Figure 10. Simplified Schematic Diagram of the HW2 Comparator
1 k
TagPos = −30000
ActPos = +30000
Motion direction
HW2
S
S
BOT
TOP
http://onsemi.com
I/R
I/R
DriveLS
DriveHS
17
S
S
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
V
via S
will be high.
PASS_B
PASS_T
BAT
In the drawing below, a simplified schematic diagram is
The HW2 pin is sensed via 2 switches. The DriveHS and
R
PASS_B
. The corresponding I ³ R converter output is low and
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
Debouncer
64 ms
State
High
Low
Float