sta335ml STMicroelectronics, sta335ml Datasheet - Page 16

• Manufacturer Part Number: sta335ml
• Description: 2-channel Microless High-efficiency Digital Audio System Sound Terminaltm
• Manufacturer: STMicroelectronics

Package thermal characteristics
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Package thermal characteristics
Using a double layer PCB the thermal resistance junction to ambient with 2 copper ground
areas of 3 x 3 cm
The dissipated power within the device depends primarily on the supply voltage, load
impedance and output modulation level.
The max estimated dissipated power for the STA335ML is:
2 x 20 W into 8 Ω, at 18 V
Figure 14. Double layer PCB with 2 copper ground areas and 16 via holes
Figure 15
two copper areas of 2 x 2 cm
Figure 15. PowerSSO-36 power derating curve
Pd (W)
Pd (W)
Pd (W)
Pd (W)
Pd (W)
shows the power derating curve for the PowerSSO-36 package on a board with
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and with 16 via holes (see
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Copper Area 2x2 cm
Copper Area 2x2 cm
Copper Area 2x2 cm
Copper Area 2x2 cm
Copper Area 2x2 cm
and via holes
and via holes
and via holes
and via holes
and via holes
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Doc ID 17638 Rev 3
and 3 x 3 cm
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Copper Area 3x3 cm
Copper Area 3x3 cm
Copper Area 3x3 cm
Copper Area 3x3 cm
Copper Area 3x3 cm
and via holes
and via holes
and via holes
and via holes
and via holes
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Figure
Pd max is approximately 4 W
Tamb ( °C)
Tamb ( °C)
Tamb ( °C)
Tamb ( °C)
Tamb ( °C)
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14) is 24 °C/W in natural air convection.
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STA335ML
PowerSSO-36
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STA333BW
STA333ML
STA333BW
STA333BW
STA333ML
PSSO36
PSSO36
PSSO36
PSSO36
PSSO36
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STA335ML