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參數(shù)資料
| 型號： | SLA7021M |
| 廠商： | SANKEN ELECTRIC CO LTD |
| 元件分類： | 運動控制電子 |
| 英文描述： | 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 |
| 中文描述： | STEPPER MOTOR CONTROLLER, 3 A, PZFM15 |
| 封裝： | PLASTIC, 15 PIN |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 99K |
| 代理商： | SLA7021M |
19
SLA7024M, SLA7026M, SLA7027MU, SLA7022MU, SLA7029M,
SMA7022MU, SMA7029M, SLA7020M, SLA7021M and SDK03M
Application Note
I
Determining the chopper frequency
Determining T
OFF
: SLA7000M series, SMA7000M series and
SDK03M are self-excited choppers. The chopping OFF
time T
OFF
is fixed by r
3
/C
1
and r
4
/C
2
connected to terminal
Td.
T
OFF
can be computed through the following formula:
2
V
b
2
V
b
T
OFF
..
3
C
1
R
n(1– ) = –r
4
C
2
R
n(1– )
The circuit constants and the T
OFF
value shown below are
recommended.
T
OFF
= 12
μ
r
3
= 47 K
C
1
= 500 pF
V
b
= 5 V
I
Thermal design
An outline on the method of computing heat dissipation is
shown below.
(1) Obtain the P
H
that corresponds to the motor coil current
I
O
from Fig. 11 “Heat dissipation per phase P
H
vs. Out-
put current lo”.
(2) The power dissipation Pdiss is obtained through the
following formula.
SLA7000M and SMA7000M series
2-phase excitation
: Pdiss ..
H
+ 0.015 x Vs (W)
3
2
1-2 phase excitation : Pdiss ..
H
+ 0.015 x Vs (W)
SDK03M
2-phase excitation
: Pdiss ..
H
+ 0.015 x Vs (W)
3
4
1-2 phase excitation : Pdiss ..
H
+ 0.015 x Vs (W)
(3) Obtain the temperature rise that corresponds to the
computed Pdiss from Fig. 12 “Temperature rise curve.”
Fig. 10 Chopper frequency vs. Motor coil resistance
Fig. 11 Heat dissipation per phase P
H
vs. Output current lo
Output current I
O
(A)
H
H
Typ.
Motor : 23LM-C004
Holding mode
V
CC
=44V
36V
24V
15V
SLA7024M, SLA7029M, SMA7029M and SLA7020M
0
0.2
0.4
0.6
0.8
1.0
1.2
1.0
0.8
0.6
0.4
0.2
0
60
50
40
30
20
10
0
0
2
4
Motor coil resistance Rm (
)
6
8
10
12
14
16
15
20
25
30
35
40
O
O
V
CC
=24V
V
CC
=36V
T
OFF
=12 s
R
S
=1
L
m
=1~3ms
R
m
r
= =
1
r
C
2
47k
500PF
C
μ
H
H
Typ.
Motor : 23PM-C503
Rm=1.16
/
Lm=2.9mA/
Holding mode
φ
φ
36V
15V
24V
SLA7026M and SLA7021M
V
CC
=44V
4.0
3.0
2.0
1.0
0
0
1.0
Output current I
O
(A)
2.0
3.0
1.4
1.2
1
0.8
0.6
0.4
0.2
00
0.2
0.4
0.6
0.8
1
24V
15V
V
CC
=44V
H
H
SLA7022MU, SLA7027MU, SMA7022MU and SDK03M
Output current I
O
(A)
Typ.
Motor : 23LM-C202
Holding mode
相關PDF資料 |
PDF描述 |
|---|---|
| SLA7024M | 2-Phase Stepper Motor Unipolar Driver ICs |
| SLA7026M | 2-Phase Stepper Motor Unipolar Driver Ics(2相步進電機單極驅動器芯片) |
| SLA7026 | 2-Phase Stepper Motor Unipolar Driver ICs |
| SLA7027 | 2-Phase Stepper Motor Unipolar Driver ICs |
| SLA7027MU | 2-Phase Stepper Motor Unipolar Driver ICs |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| SLA7024 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:HIGH-CURRENT PWM, UNIPOLAR STEPPER MOTOR CONTROLLER/DRIVERS |
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