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參數(shù)資料
| 型號(hào)： | STK6713BMK4 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Unipolar Fixed-current Chopper-Type 4-Phase Stepping Motor Driver(單極性固定電流4相位步進(jìn)式斬波型電機(jī)驅(qū)動(dòng)器) |
| 中文描述： | 單極固定電流斬波型4相步進(jìn)電機(jī)驅(qū)動(dòng)器（單極性固定電流4相位步進(jìn)式斬波型電機(jī)驅(qū)動(dòng)器） |
| 文件頁(yè)數(shù)： | 7/10頁(yè) |
| 文件大小： | 146K |
| 代理商： | STK6713BMK4 |
Determining Chopping Frequency
The STK6713BMK4 uses constant current for self-excitation.
The I
OH
t
OFF
time is set to about 14 μs, and the t
ON
time can be expressed as:
V
CC
– ( I
OH
e
– V
CC
+ 0.88
(1 – e
)) (R + 0.88)
t
ON
≈
R L
R
)............................ (5)
V
CC
– (R + 0.88) I
OH
L:
R:
V
CC
: Motor supply voltage
I
OH
:
Output current
Motor winding inductance
Motor resistance
As a result, the chopping frequency is
1
t
ON
+ t
OFF
F
≈
=
(Hz)................................................................................................ (6)
However, note that when the following conditions exist the value for F will change.
V
CC
+ 0.88
I
OH
×
R + V
CC
+ 0.88
R
14
×
10
–6
≥
In (
) = t
OFF
2............................................................................. (7)
t
OFF
≈
t
OFF
1 + t
OFF
2 = 14
×
10
-6
+ t
OFF
1
t
ON
+ 14
×
10
–6
+ t
OFF
2
∴
F =
(Hz)........................................................................................................ (8)
Because the STK6712BMK4 is self-exciting there will be minor variation in motor inductance during motor revolution.
Final design verification is required in an actual model.
Thermal Radiation Design
The HIC radiator plate size is dependent on the motor output current I
OH
(A), motor electrical characteristics, excitation
mode, and excitation input signal clock frequency fclock (Hz).
The thermal resistance for the radiator can be determined from the following expression.
Tc max – Ta
Pd
θ
c – a =
(°C/W).................................................................................................................. (9)
Tc max = HIC substrate temperature
Ta = set internal temperature
Pd = HIC internal mean power dissipation (W)
(°C)
(°C)
–L
1
t
ON
+ 14
×
10
–6
–
t
OFF
R
L
–
t
OFF
R
L
No. 4867-7/10
STK6712BMK4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| STK672-010 | Unipolar Fixed-Current Chopper (separate excitation) Type 1.7 A Output Current Stepping Motor Driver with Built-in 4-Phase Distribution Controller(單極性固定電流斬波型輸出電流1.7A步進(jìn)式馬達(dá)驅(qū)動(dòng)器（帶內(nèi)置式4相位分配控制器）) |
| STK672 | Aluminum Polymer Radial Lead Capacitor; Capacitance: 270uF; Voltage: 16V; Case Size: 8x12 mm; Packaging: Bulk |
| STK672-020 | Unipolar Fixed-Current Chopper(separate excitation)Type 3.0A Output Current Stepping Motor Driver with Built-in 4-Phase Distribution Controller |
| STK672-040 | Microstep Operation-Supported 4-Phase Stepping Motor Driver (Io= 1.5A) |
| STK672-050 | Microstep Operation-Supported 4-Phase Stepping Motor Driver (Io= 3.0A) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STK6713BMK4-C-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| STK672-040-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Unipoler 2PhaseMicro SteppingMotor Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| STK672-040GEVB | 功能描述:電源管理IC開(kāi)發(fā)工具 EVM FOR STK672-040-E RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| STK672-050 | 制造商:Panasonic Industrial Company 功能描述:IC |
| STK672050E | 制造商:ON Semiconductor 功能描述: |
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