L6223 STMicroelectronics, L6223 Datasheet - Page 21
L6223
Manufacturer Part Number
L6223
Description
DMOS PROGRAMMABLE HIGH SPEED UNIPOLAR STEPPER MOTOR DRIVER
Manufacturer
STMicroelectronics
Datasheet
1.L6223.pdf
(33 pages)
Available stocks
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Part Number
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Quantity
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Part Number:
L6223
Manufacturer:
ST
Quantity:
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Part Number:
L6223N .
Manufacturer:
ST
Quantity:
20 000
Figure 27: Simplified waveforms of the current through the phase A (winding MA) and through the phase
stepper motor in the Full Step Mode.
The calculations consider three different condi-
tions of heatsinking: the package with minimum
dissipating copper area on the p.c.b. (R
Figure 26: Phase current waveform during chopping: the current decay during t
B (winding MB). See also fig.22.
thj-amb
=
55 C); the copper side of 6 cm
40 C/W - See Fig. 34) and the additional heatsink
(R
thj-amb
= 30 C/W).
OFF
is halved.
2
(R
thj-amb
L6223
21/33
=