AMIS30522C5222G ON Semiconductor, AMIS30522C5222G Datasheet - Page 15

• Manufacturer Part Number: AMIS30522C5222G
• Description: IC MOTOR DVR MICRO STEP 32QFP
• Manufacturer: ON Semiconductor
• Type: Stepper Motor Driverr

Specifications of AMIS30522C5222G

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 1
• Current - Output: 1.2A
• Voltage - Supply: 6 V ~ 30 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-VSQFP
• Package: 32NQFP EP
• Maximum Operating Current: 8 mA
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 6 V to 30 V
• Supply Current: 8 mA
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Direction
combination of the DIR input pin and the SPI−controlled
direction bit <DIRCTRL> as illustrated in Table 12.
NXT Input
one step up/down in the translator table (even when the
motor is disabled). Depending on the NXT−polarity bit
<NXTP> (see Table 12), the next step is initiated either on
the rising edge or the falling edge of the NXT input.
Translator Position
3. This is a 7−bit number equivalent to the 1/32th micro−step
from Table 10: “Circular Translator Table” above. The
translator position is updated immediately following a NXT
trigger.
NXT
The direction of rotation is selected by means of following
Changes on the NXT input will move the motor current
The translator position can be read in SPI Status Register
Figure 10. Translator Position Timing Diagram
Translator Position
Update
Start = 0 Step 1
1/4th Micro Step
SM[2:0] = 011
I
Y
Step 2
Step 3
Figure 9. Translator Table: Circular and Square
Translator Position
I
X
Update
Uncompensated Half Step
Start = 0
http://onsemi.com
SM[2:0] = 101
I
Y
15
Synchronization of Step Mode and NXT Input
(Figure 11), this is put in effect immediately upon the first
arriving “NXT” input. If the micro−stepping resolution is
increased, the coil currents will be regulated to the nearest
micro−step, according to the fixed grid of the increased
resolution. If however the micro−stepping resolution is
decreased, then it is possible to introduce an offset (or phase
shift) in the micro−step translator table.
position that is shared both by the old and new resolution
setting, then the offset is zero and micro−stepping proceeds
according to the translator table.
new resolution setting, then the micro−stepping proceeds
with an offset relative to the translator table (See Figure 11
right hand side).
Step 1
When step mode is re−programmed to another resolution,
If the step resolution is decreased at a translator table
If the translator position is not shared both by the old and
Step 2
Step 3
I
X
Step 3
Start = 0
SM[2:0] = 110
Full Step
I
Y
Step 1
Step 2
I
X