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參數(shù)資料
| 型號(hào)： | SLA7021 |
| 廠商： | Sanken Electric Co.,Ltd. |
| 英文描述： | Unipolar Driver ICs |
| 中文描述： | 單極驅(qū)動(dòng)器集成電路 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 99K |
| 代理商： | SLA7021 |
18
SLA7024M, SLA7026M, SLA7027MU, SLA7022MU, SLA7029M,
SMA7022MU, SMA7029M, SLA7020M, SLA7021M and SDK03M
Application Note
Fig. 6 Circuit for fixing the coil current
Fig. 7 Circuit for fixing the coil current
Fig. 8 and 9 show the graphs of equations
q
and
w
,
respectively.
Fig. 8 Output current Io vs. Current detection resistor Rs
Fig. 9 Output current l
OPD
vs. Variable current resistor r
x
NOTE:
Ringing noise is produced in the current detection resistor
Rs when the MOSFET is switched ON and OFF through
chopping. This noise is also generated in feedback signals
from Rs which may therefore causes the comparator to
malfunction.
To prevent chopping malfunctions, r
5
(r
6
) and C
3
(C
4
) are
added in order to act as noise filter.
However, when the values of these constants are increased,
the response from Rs to the comparator becomes slow.
Hence, the value of the output current lo is higher to some
extent than the computed value.
SLA7024M
SLA7026M
SLA7027MU
C
3
r
2
r
1
r
6
r
5
V
b
(5
V
)
9,(10)
3,(14)
r
X
T
r
Power down
signal
SDK03M
R
S
C
3
r
2
r
1
r
6
r
5
V
b
(5
V
)
10
3
r
X
T
r
Power down
signal
13 15
4
3
2
1
00
1
2
3
4
Current detection resistor R
S
(
)
O
O
SLA7024M, SLA7026M, SLA7029M, SLA7027MU,
SLA7022MU, SLA7020M, SLA7021M, SMA7029M,
SMA7022MU, SDK03M
I
O
= r
1
+r
S
r
1
=510
r
2
=100
r
x
=
∞
V
b
=5V
r
2
R
b
2
1.5
1
0.5
00
2.0
4.0
6.0
8.00
Variable current resistor r
X
(
)
O
O
SLA7024M, SLA7026M, SLA7029M, SLA7027MU, SLA7022MU,
SLA7020M, SLA7021M, SMA7029M, SMA7022MU, SDK03M
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
)
b
r
(r
2+
r
X
r
2 ·
r
X
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SLA7021M | Isolation Transformer; Output Voltage:115V; Power Rating:1000VA; Current Rating:8.7A; Phases:Single; Size:5.38 x 4.38 x 8.13 in; Output/Outlet:1 RoHS Compliant: Yes |
| SLA7024M | 2-Phase Stepper Motor Unipolar Driver ICs |
| SLA7026M | 2-Phase Stepper Motor Unipolar Driver Ics(2相步進(jìn)電機(jī)單極驅(qū)動(dòng)器芯片) |
| SLA7026 | 2-Phase Stepper Motor Unipolar Driver ICs |
| SLA7027 | 2-Phase Stepper Motor Unipolar Driver ICs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SLA7021M | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:Unipolar Driver ICs |
| SLA7022 | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:2-Phase Stepper Motor Unipolar Driver ICs |
| SLA7022MU | 制造商:Sanken Electric Co Ltd 功能描述:IC DVR 2PH STEPPER MOTOR 15SIP |
| SLA7022MU_10 | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:2-Phase Excitation |
| SLA7022MU_11 | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:2-Phase Excitation |
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