參數(shù)資料
型號: LV8713T
廠商: SANYO SEMICONDUCTOR CO LTD
元件分類: 運動控制電子
英文描述: STEPPER MOTOR CONTROLLER, 1 A, PDSO24
封裝: 0.225 INCH, TSSOP-24
文件頁數(shù): 3/16頁
文件大小: 304K
代理商: LV8713T
LV8713T
No.A1918-11/16
(10) Chopping frequency setting
For constant-current control, this IC performs chopping operations at the frequency determined by the capacitor
(Cchop) connected between the CHOP pin and GND.
The chopping frequency is set as shown below by the capacitor (Cchop) connected between the CHOP pin and GND.
Tchop ≒ C × V × 2 / I (s)
V : Width of suresshu voltage, typ 0.5V
I : Charge/discharge current, typ 10
μA
For instance, when Cchop is 200pF, the chopping frequency will be as follows :
Fchop ≒ 1 / Tchop (Hz)
(11) Output current vector locus (one step is normalized to 90 degrees)
Channel 2 current ratio (%)
Channel
1
phase
current
ratio
(%)
0.0
33.3
66.7
100.0
0.0
33.3
66.7
100.0
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