參數(shù)資料
型號(hào)： STK672-010
廠商： Sanyo Electric Co.,Ltd.
英文描述： 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）)
中文描述： 單極固定電流斬波（單獨(dú)激發(fā)）類型1.7 A輸出電流步進(jìn)電機(jī)驅(qū)動(dòng)器，內(nèi)置4相分布控制器（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））
文件頁(yè)數(shù)： 9/17頁(yè)
文件大?。?/td> 325K
代理商： STK672-010
Fig. 8 Motor Output Current Waveform
Fig. 9: Vref Peripheral Circuit
The output current range is from 0.1 A of the current caused by the t
OFF
time in oscillator to 1.7 A of the allowable
maximum current.
<Notes on W1-2 Phase Excitation Current Switching>
The STK672-010 provides the control logic circuit to allow the current to be switched over up to four levels by the C1,
C2, and C3. A low saturation transistor must be used on the Vref voltage switching device in the W1-2 phase excitation
circuit.
The reason for this is that when the W1-2 phase excitation current is switched over up to four levels, for switching I
O
at
small settings the I
O
waveform will be displaced from the desired value due to variations in the V
CE
(sat) voltage drop of
the external Vref switching device. This can result in increased motor vibrations. Therefore we recommend selecting a
device with a V
CE
(sat) of about 10 mV at I
C
= 100 μA for this transistor at the operating conditions used for this circuit.
Note that although we proposed using the LB1212 or LB1214, this does not necessarily apply to designs that take mass
production into consideration.
The output current setting ratios for W1-2 phase excitation are 100%, 92%, 70%, and 38% for four-level switching and
100% and 70% for two-level switching. These are target values and precise adjustment should be made in the actual
circuit.
A description of the W1-2 phase excitation follows.
No. 4927-9/17
STK672-010
<Output Current Setting>
Figure 8 shows the motor output current waveform.
The output current I
OH
is set by the STK672-010 pin 4 (5) voltage.
The formulas for these calculations are as follows.
R
O
2
R
O
1 + R
O
2
Vref =
×
V
CC
2 .................................................. (2)
I
OH
= K
×
.................................................................... (3)
R
S
: The hybrid IC internal current detection resistor
(0.33 ± 3%)
K: 1.1 to 1.2 (correction coefficient for differences
between settings and measurements)
K is a proportionality constant that corrects for discrepancies between
measurements and settings. Since the value of K is the set value in one
condition, the value must be reset for each condition examined.
Sources of error include motor supply voltage and the motor electrical
characteristics.
Vref
R
S
相關(guān)PDF資料
PDF描述
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)
STK672-080 Aluminum Polymer Radial Lead Capacitor; Capacitance: 470uF; Voltage: 16V; Case Size: 10x13 mm; Packaging: Bulk
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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:
STK672-050-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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*