參數(shù)資料
型號(hào)： LV8746V
元件分類(lèi)： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, 1.2 A, PDSO44
封裝： 0.275 INCH, SSOP-44
文件頁(yè)數(shù)： 4/24頁(yè)
文件大?。?/td> 400K
代理商： LV8746V
LV8746V
(6) Forward/reverse switching function
FR
Operating mode
Low
CW
High
CCW
FR
CW mode
CCW mode
STEP
Excitation position
1ch output
2ch output
(1)
(2)
(3)
(4)
(5)
(6)
(5)
(4)
(3)
(4)
(5)
The internal D/A converter proceeds by one bit at the rising edge of the input STEP pulse.
In addition, CW and CCW mode are switched by setting the FR pin.
In CW mode, the channel 2 current phase is delayed by 90° relative to the channel 1 current.
In CCW mode, the channel 2 current phase is advanced by 90° relative to the channel 1 current.
(7) Chopping frequency setting
For constant-current control, chopping operation is made with the frequency determined by the external resistor
The chopping frequency to be set with the resistance connected to the RCHOP pin (pin 11) is as shown below.
0
20
40
100
60
80
15
45
55
35
25
Fchop(kHz)
Chopping frequenccy setting(reference data)
No.A1563-12/24
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