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STA339BWS Arkusz danych(PDF) 75 Page - STMicroelectronics

Numer części STA339BWS
Szczegółowy opis  FFX with 100-dB SNR and dynamic range
PDF  79 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA339BWS Arkusz danych(HTML) 75 Page - STMicroelectronics

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STA339BWS
Package thermal characteristics
79
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 STA339BWS is:
Figure 25 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 25. 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
STA339BWS
PowerSSO-



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