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參數(shù)資料
| 型號(hào)： | SLA7033M |
| 廠商： | SANKEN ELECTRIC CO LTD |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | 2-Phase Stepper Motor Unipolar Driver ICs |
| 中文描述： | STEPPER MOTOR CONTROLLER, 3 A, PZFM18 |
| 封裝： | ZIP-18 |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大小： | 71K |
| 代理商： | SLA7033M |
32
SLA7032M/SLA7033M
SLA7032M/SLA7033M
2-Phase Stepper Motor Unipolar Driver IC (2-Phase/1-2 Phase Excitation)
R
S
r
2
r
1
V
b
(5
V
)
9,(10)
3,(14)
r
2
r
1
V
b
(5
V
)
9,(10)
3,(14)
r
X
T
r
Power down
signal
I
Determining the Output Current
Fig. 1 shows the waveform of the output current (motor coil cur-
rent). The method of determining the peak value of the output
current (I
O
) based on this waveform is shown below.
(Parameters for determining the output current I
O
)
V
b
: Reference supply voltage
r
1
,r
2
: Voltage-divider resistors for the reference supply voltage
R
S
: Current sense resistor
(1) Normal rotation mode
I
O
is determined as follows when current flows at the maximum
level during motor rotation. (See Fig.2.)
r
r
1
+r
2
R
S
(2) Power down mode
The circuit in Fig.3 (r
x
and T
r
) is added in order to decrease the
coil current. I
O
is then determined as follows.
Equation (2) can be modified to obtain equation to determine r
x
.
1
V
b
R
s
I
OPD
r
1
r
2
Fig. 4 and 5 show th e graphs of equations (1) and (2) respec-
tively.
Fig. 2 Normal mode
0
Phase A
Phase A
I
O
Fig. 1 Waveform of coil current (Phase A excitation ON)
Fig. 3 Power down mode
4
3
2
1
00
1
2
3
4
Current sense resistor R
S
(
)
O
O
I
O
= r
1
+r
2
R
S
r
1
=510
r
2
=100
r
x
=
∞
V
b
=5V
r
2
·
V
b
Fig. 4 Output current I
O
vs. Current sense resistor R
S
Fig. 5
Output current I
OPD
vs. Variable current sense resistor r
x
2.0
1.5
1.0
0.5
00
200
400
600
800
Variable current sense resistor r
X
(
)
O
O
1000
1200
R
S
=0.5
R
S
=0.8
R
S
=1
I
OPD
= 1+ 1
S
r
1
=510
r
2
=100
V
b
=5V
·
V
b
r
(r
2+
r
X
)
r
2
·
r
X
r
X
=
1
1
1
................................................................(1)
I
O
V
b
.........................................................(2)
R
S
I
OPD
r
1
(r
2
+r
X
)
r
2
r
X
V
1+
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|---|---|
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SLA7033M-LF871 | 制造商:Sanken Electric Co Ltd 功能描述: |
| SLA7042 | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:2-Phase Stepper Motor Unipolar Driver ICs |
| SLA7042M | 制造商:Allegro MicroSystems 功能描述:IC MOTOR DRIVER 制造商:Allegro MicroSystems 功能描述:IC MOTOR CTRL/DRVR, STEPPER, 1.5A SIP18; Motor Type:Stepper; No. of Outputs:4; Output Current:1.5A; Output Voltage:100V; Driver Case Style:SIP; No. of Pins:18; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Device Type:Motor ;RoHS Compliant: Yes |
| SLA7042M_10 | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:2W1-2 Phase Excitation/Micro-step Support |
| SLA7044 | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:2-Phase Stepper Motor Unipolar Driver ICs |
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