AMIS30622C6228G ON Semiconductor, AMIS30622C6228G Datasheet - Page 20

• Manufacturer Part Number: AMIS30622C6228G
• Description: IC MOTOR DVR MICROSTP I2C 32NQFP
• Manufacturer: ON Semiconductor
• Type: Micro Stepping Motor Driverr

Specifications of AMIS30622C6228G

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: 800mA
• Voltage - Supply: 6.5 V ~ 29 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-VSQFP
• Operating Supply Voltage: 5 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

R2VBAT
1024 ms S
of the I ⇒ R converter is low and the HW_Cmp output is
high. Assuming the previous state was floating, the internal
logic will interpret this as a change of state and the new state
will be high (see also Table 15). The next time S
the same conditions are observed. The previous state was
high so based on Table 15 the new state remains unchanged.
This high state will be interpreted as HW address = 1.
OPEN
contact in connector) the next time S
be sensed. There will be no current, the output of the
corresponding I ⇒ R converter is high and the HW_Cmp
will be low. The previous state was high. Based in Table 15
one can see that the state changes to float. This will trigger
A resistor is connected between VBAT and HW. Every
In case the HW connection is lost (broken wire, bad
HW_Cmp
“R”−Comp
Condition
DriveHS
DriveLS
State
R
BOT
th
is closed and a current is sensed. The output
Figure 11. Timing Diagram Showing the Change in States for HW Comparator
Tsw_on = 64 ms
Tsw = 1024 ms
R2 VBAT
BOT
is closed, this will
BOT
is closed
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OPEN
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a motion to secure position after a debounce time of 64 ms,
which prevents false triggering in case of micro−
interruptions of the power supply.
R2GND
current is sensed every 1024 ms when S
output of the top I ⇒ R converter is low and as a result the
HW_Cmp output switches to high. Again based on the stated
diagram in Table 15 one can see that the state will change to
Low. This low state will be interpreted as HW address = 0.
External Switch SWI
identical to HW. The major difference is in the limited
number of states. Only open or closed is recognized leading
to respectively ESW = 0 and ESW = 1.
If a resistor is connected between HW and the GND, a
As illustrated in Figure 12 the SWI comparator is almost
R2 VBAT
R2 GND
TOP
is closed. The
t
t
t
t
t
t