AMIS30542C5421RG ON Semiconductor, AMIS30542C5421RG Datasheet - Page 16

• Manufacturer Part Number: AMIS30542C5421RG
• Description: IC MOTOR DVR MICRO STEP 32QFP
• Manufacturer: ON Semiconductor
• Type: Micro Stepping Motor Driverr

Specifications of AMIS30542C5421RG

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 1
• Current - Output: 2.2A
• Voltage - Supply: 6 V ~ 30 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-VSQFP
• 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

Left: Change from lower to higher resolution. The left−hand side depicts the ending half−step position during which a new
step mode resolution was programmed. The right−hand side diagram shows the effect of subsequent NXT commands on the
micro−step position.
Right: Change from higher to lower resolution. The left−hand side depicts the ending micro−step position during which a new
step mode resolution was programmed. The right−hand side diagram shows the effect of subsequent NXT commands on the
half−step position.
Note: It is advised to reduce the micro−stepping resolution only at micro−step positions that overlap with desired micro−step
positions of the new resolution.
Programmable Peak−Current
(coil peak current = I
parameter “CUR[4:0]” (see Table 14 SPI Control Parameter
The amplitude of the current waveform in the motor coils
Halfstep
Change from lower to higher resolution
Iy
endpos
Peak Current
max
DIR
Ix
) is adjusted by means of an SPI
615 mA
4.75 A
2.40 A
1.20 A
NXT4
0
NXT3
Figure 13. Programmable Peak−Current Overview
1/4
NXT2
CUR[4:0] = 0 − > 8
Current Range 0
Figure 12. NXT−Step Mode Synchronization
th
CUR[4:0] = 9 − > 15
Current Range 1
Iy
step
NXT1
8
startpos
DIR
http://onsemi.com
Ix
CUR [4:0] = 16 − > 22
Current Range 2
15
16
Overview). Whenever this parameter is changed, the
coil−currents will be updated immediately at the next PWM
period. Figure 13 presents the Peak−Current and Current
Ratings in conjunction to the Current setting CUR[4:0].
1/8
CUR[ 4:0] = 23 − > 31
Current Range 3
Change from higher to lower resolution
th
22
Iy
step
endpos
DIR
Ix
NXT3
31
NXT2
CUR[4:0]
NXT1
Halfstep
Iy
startpos
PC20070604.6
DIR
Ix