- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374946 > STK672-010 (Sanyo Electric Co.,Ltd.) 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步進式馬達驅(qū)動器（帶內(nèi)置式4相位分配控制器）) PDF資料下載
參數(shù)資料
| 型號： | 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步進式馬達驅(qū)動器（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（單獨激發(fā)）類型1.7 A輸出電流步進電機驅(qū)動器，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步進式馬達驅(qū)動器（帶內(nèi)置式4相位分配控制器）） |
| 文件頁數(shù)： | 13/17頁 |
| 文件大?。?/td> | 325K |
| 代理商： | STK672-010 |
<Oscillator Frequency Setting>
The separate excitation chopping frequency f can be derived from t
ON
and t
OFF
as follows.
V
L
V
H
t
ON
= –CR
1
×
In
............................................................................................................................................. (4)
t
OFF
= –C
×
×
In 1 –
.......................................................................................... (5)
Therefore, the separate excitation chopping frequency f is given by the following formula.
f =
[Hz] ............................................................................................................................................. (6)
Values of R1 = 2.4 k
and C = 7500 pF are appropriate to achieve the recommended time constant.
Thermal Design
The size of the heat sink required for this hybrid IC is determined by the motor output current I
OH
(A), the motor’s
electrical characteristics, the excitation mode, and the clock frequency fclock (Hz) of the excitation input signal. The
thermal resistance of the required heat sink can be derived from the following formula.
θ
c-a =
[°C/W] .............................................................................................................................. (7)
Tc max = The hybrid IC case temperature (°C)
Ta
= Set internal temperature (°C)
Pd
= The hybrid IC average internal power dissipation (W)
The heat sink thermal resistance
θ
c-a can be derived from the average power dissipation shown in Figure 14. Then the heat
sink area can be derived from Figure 15. Note that the ambient temperature is influenced significantly by the air circulation
conditions within the set. Therefore, the heat sink size must be determined so that back surface (the aluminum plate side) of
the hybrid IC never exceeds Tc max (105°C) under any condition in the mounted state within the end product.
Tc max – Ta
Pd
1
t
ON
+ t
OFF
Rx
×
V
CC
2
Rx
×
R
1
0.33
×
V
CC
2
Rx
×
R
1
R
1
+ Rx
No. 4927-13/17
STK672-010
Fig. 12 R/C Waveform
Fig. 13 R/C Pin Peripheral Circuit
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/運動/點火控制器和驅(qū)動器 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/運動/點火控制器和驅(qū)動器 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，3分鐘左右您將得到回復(fù)。