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參數(shù)資料
| 型號(hào)： | SI-7330 |
| 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)： | 3/5頁 |
| 文件大?。?/td> | 67K |
| 代理商： | SI-7330 |
31
SI-7300 and SI-7330A
Application Note
I
Determining the output
current I
O
(motor coil current)
The output current, lo is fixed by the following circuit ele-
ments:
R
S
:
Current detection resistor
V
CC2
:
Supply voltage
R
X
:
Variable current resistor
To operate a motor at maximum current level, set Rx =
infinity (open). Based on the specifications of SI-7300A, its
output current lo can be seen as:
lo (rms value): 535 to 625 mA
To compute lo when different values are used for Rs and
V
CC2
, use the approximation formula below. The maximum
ripple value I
OH
of the output current waveform can be
computed as follows:
1
l
OH(max)
=
(0.233V
CC2
–0.026) [A]
R
S
1
l
OH(min)
=
(0.214V
CC2
–0.021) [A]
RS
The graph of this equation is shown below.
..
..
I
Power down mode
The SI-7300A can be operated in power down mode. The
circuit is shown below. When transistor Tr is switched on,
the reference voltage drops and the output current can be
decreased.
Waveform of output current
I
OH
Rx
Tr
2
SI-7300A
SI-7300A Pull-out torque
τ
out
vs. Response frequency
5
500
Response frequency f (pps)
1000
5000
0
1
2
3
4
Motor
23PM-C108
V
CC1
=30V
I
=1.2A/
(Fixed)
2-phase excitation
V
Z
=60V
P
τ
o
φ
I
Example of a Frequency vs.
Torque characteristic
The graph shows the relation-
ship between frequency and
pull-out torque of SI-7300A.
4
3
2
0
1
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
4
3
0
1
Current detection resistor Rs (
)
0
1
2
3
SI-7300A Output current I
OH
vs. Current detection resistor Rs
O
O
Current detection resistor Rs (
)
SI-7330A Output current I
OH
vs. Current detection resistor Rs
max V
CC2
=5V
min V
CC2
=5V
I
OH(max)
1
CC2
–0.026)
1
CC2
–0.021)
I
OH(min)
O
O
4
3
2
0
1
0
1
2
3
Variable current resistor Rx (k
)
O
O
(
4
3
2
0
1
0
0.2
1.0
1.6
Variable current resistor Rx (k
)
O
O
(
1.4
1.2
0.8
0.4
0.6
SI-7300A Output current I
OH
vs. Variable current resistor R
X
max Rs = 0.7
max Rs = 1
min
SI-7330A Output current I
OH
vs. Variable current resistor R
X
Rs = 0.3
Rs = 0.8
I
OH(max)
1
Rs
1.131
4.843+
4.9
Rx
V
CC2
– 0.026
I
OH(min)
1
Rs
1.107
5.165+
5.1
Rx
V
CC2
– 0.021
*
Rx : k
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SI-7330A | Time-Delay Relay; Contacts:DPDT; Time Range:1 - 10 sec.; Mounting Type:Plug In; Timing Function:Off-Delay; Coil Voltage AC Max:120V; Contact Carrying Power:5VA; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No RoHS Compliant: No |
| SI-7500 | 5-phase Stepper Motor Star Connection Unipolar Driver IC |
| SI-7500A | 5-phase Stepper Motor Star Connection Unipolar Driver IC |
| SI-7502 | 5-Phase Stepper Motor Driver ICs |
| SI-7600 | 3-Phase Stepper Motor Driver ICs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI7330A | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:Unipolar Driver ICs |
| SI-7330A | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:Unipolar Driver ICs |
| SI7336ADP | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:SI7336ADP |
| SI7336ADPT1E3 | 制造商:Vishay Intertechnologies 功能描述: |
| SI7336ADP-T1-E3 | 功能描述:MOSFET 30V 30A 5.4W 3.0mohm @10V RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續(xù)電流:130 A 電阻汲極/源極 RDS（導(dǎo)通）:0.014 Ohms 配置:Single 最大工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:Max247 封裝:Tube |
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