AMIS30621C6217RG ON Semiconductor, AMIS30621C6217RG Datasheet - Page 18

• Manufacturer Part Number: AMIS30621C6217RG
• Description: IC MOTOR STEPPER DVR/CTLR 20SOIC
• Manufacturer: ON Semiconductor
• Type: Micro Stepping Motor Driverr

Specifications of AMIS30621C6217RG

• Number Of Outputs: 4
• Voltage - Supply: 6.5 V ~ 29 V
• Operating Temperature: -40°C ~ 165°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 6.5 V to 29 V
• Supply Current: 800 mA
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Applications: -
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

switches and in interpreting the 32 ms debounced
HW2_Cmp output accordingly. The output of this small
state−machine is corresponding to:
•
•
•
Table 15. STATE DIAGRAM OF THE HW2 COMPARATOR
The logic is controlling the correct sequence in closing the
Previous
High or address = 1
Low or address = 0
Floating
State
Float
Float
Float
Float
High
High
High
High
Low
Low
Low
Low
DriveLS
1
1
0
0
1
1
0
0
1
1
0
0
DriveHS
0
0
1
1
0
0
1
1
0
0
1
1
HW2_Cmp
0
1
0
1
0
1
0
1
0
1
0
1
http://onsemi.com
New State
Float
Float
Float
Float
High
High
High
High
Low
Low
Low
Low
18
depending on the previous state, the condition of the 2
switch controls (DriveLS and DriveHS) and the output of
HW2_Cmp. The figure below is showing an example of a
practical case where a connection to VBAT is interrupted.
As illustrated in the table above (Table 15), the state is
R2VBAT or OPEN
R2VBAT or OPEN
R2VBAT or OPEN
R2GND or OPEN
R2GND or OPEN
R2GND or OPEN
Condition
R2VBAT
R2VBAT
R2VBAT
R2GND
R2GND
R2GND
Drawing
1 or 3
2 or 3
1 or 3
2 or 3
1 or 3
2 or 3
2
1
2
1
2
1