參數(shù)資料
型號: L6223A
文件頁數(shù): 21/33頁
文件大?。?/td> 1335K
代理商: L6223A
Figure26:
Phase current waveform during chopping: the currentdecay duringt
OFF
is halved.
Figure27:
Simplified waveformsof thecurrent through the phase A (winding MA) andthrough the phase
B (windingMB). See also fig.22.
steppermotor in the Full StepMode.
The calculations consider three different condi-
tions of heatsinking: the package with minimum
dissipating copper area on the p.c.b. (R
thj-amb
=
55
°
C); the copper side of 6 cm
2
(R
thj-amb
=
40
°
C/W - See Fig. 34) and the additionalheatsink
(R
thj-amb
= 30
°
C/W).
L6223A
21/33
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