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STA369BWSTR Scheda tecnica(PDF) 88 Page - STMicroelectronics

Il numero della parte STA369BWSTR
Spiegazioni elettronici  2.1-channel 40-watt high-efficiency digital audio system Sound Terminal®
PDF  92 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA369BWSTR Scheda tecnica(HTML) 88 Page - STMicroelectronics

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Package thermal characteristics
STA369BWS
88/92
DocID016861 Rev 7
9
Package thermal characteristics
Using a double-layer PCB the thermal resistance, junction to ambient, with 2 copper ground
areas of 3 x 3 cm2 and with 16 via holes is 24 °C/W in natural air convection.
The dissipated power within the device depends primarily on the supply voltage, load
impedance and output modulation level.
Thus, the maximum estimated dissipated power for the STA369BWS is:
Figure 31 shows the power derating curve for the PowerSSO-36 package on PCBs with
copper areas of 2 x 2 cm2 and 3 x 3 cm2.
Figure 31. PowerSSO-36 power derating curve
2 x 20 W @ 8
, 18 V
Pd max is approximately 4 W
2 x 9 W + 1 x 20 W @ 4
, 8 ,18 V
Pd max is approximately 5 W
STA369BWS
PowerSSO-



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