L6223 STMicroelectronics, L6223 Datasheet - Page 30
L6223
Manufacturer Part Number
L6223
Description
DMOS PROGRAMMABLE HIGH SPEED UNIPOLAR STEPPER MOTOR DRIVER
Manufacturer
STMicroelectronics
Datasheet
1.L6223.pdf
(33 pages)
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L6223
Figure 34: R
Figure 35: Transient thermal resistance for single pulses
Thermal characteristics.
The p.c.b. copper size needed for a defined ther-
mal resistance between junction and ambient is
shown in Fig. 34. Fig. 35 and Fig. 36 are useful to
30/33
th
with two ”on board” square heatsink vs. side I.
estimate the typical thermal resistance junction to
ambient for a single pulse of peak power and for
a repetetive peak respectively.