AMIS30521C5212G ON Semiconductor, AMIS30521C5212G Datasheet - Page 16

• Manufacturer Part Number: AMIS30521C5212G
• Description: IC MOTOR DVR MICRO STEP 32NQFP
• Manufacturer: ON Semiconductor
• Type: Stepper Motor Driverr

Specifications of AMIS30521C5212G

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 1
• Current - Output: 1.6A
• Voltage - Load: 7 V ~ 30 V
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-VSQFP
• Operating Current: 8mA
• Operating Temperature Classification: Automotive
• Operating Supply Voltage (min): 6V
• Operating Supply Voltage (max): 30V
• Product: Stepper Motor Controllers / Drivers
• Supply Current: 8 mA
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Programmable Peak−Current
(coil peak current = I
parameter
Speed and Load−Angle Output
level of the Back−e.m.f. voltage of the motor. This
Back−e.m.f. voltage is sampled during every so−called ”coil
Left: change from lower to higher resolution. The left−hand side depicts the ending half−step position during which a new step mode res-
olution 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:
The amplitude of the current waveform in the motor coils
The SLA−pin provides an output voltage that indicates the
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.
Ipeak (CUR[4:0] = 01000)
Ipeak (CUR[4:0] = 10110]
Ipeak (CUR[4:0] = 01111)
Ipeak (CUR[4:0] = 11111)
Halfstep
Change from lower to higher resolution
“CUR[4:0]”
I
Y
endpos
max
DIR
) is adjusted by means of an SPI
0
(Table 13).
I
X
Peak Current
Current Range 1
CUR = 9 −> 15
Current Range 0
CUR = 0 −> 8
NXT4
Figure 12. Programmable Peak−Current Overview
NXT3
Figure 11. NXT−Step−Mode Synchronization
1/4
NXT2
th
Whenever
8
step
I
Y
NXT1
Current Range 2
CUR = 16 −> 22
startpos
http://onsemi.com
DIR
this
I
X
15
16
parameter is changed, the coil−currents will be updated
immediately at the next PWM period. Figure 12 presents the
Peak−Current and Current Ranges in conjunction to the
Current setting (CUR[4:0]).
current zero crossings”. Per coil, 2 zero−current positions
exist per electrical period, yielding in total 4 zero−current
observation points per electrical period.
Current Range 3
CUR = 23 −> 31
22
1/8
Change from higher to lower resolution
th
I
step
Y
endpos
DIR
I
X
31
NXT3
NXT2
CUR[4:0]
NXT1
Halfstep
I
Y
startpos
DIR
I
X