STA559BW13TR STMicroelectronics, STA559BW13TR Datasheet - Page 63

• Manufacturer Part Number: STA559BW13TR
• Description: IC DAS 2.1 CHANNEL POWERSSO36
• Manufacturer: STMicroelectronics
• Series: Sound Terminal™r
• Type: Audio Processorr

Specifications of STA559BW13TR

• Applications: DVD
• Mounting Type: Surface Mount
• Package / Case: 36-BFSOP (0.295", 7.50mm Width) Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-11466-2

STA559BW
8
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.
Thus, the maximum estimated dissipated power for the STA559BW is:
Figure 20
copper areas of 2 x 2 cm
Figure 20. PowerSSO-36 power derating curve
2 x 20 W @ 8 Ω, 18 V
2 x 9 W + 1 x 20 W @ 4 Ω, 8 Ω, 18 V
shows the power derating curve for the PowerSSO-36 package on PCBs with
Pd (W)
Pd (W)
2
and with 16 via holes is 24 °C/W in natural air convection.
8
8
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8
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8
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5
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5
5
5
5
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4
4
4
4
4
3
3
3
3
3
3
2
2
2
2
2
2
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
2
and 3 x 3 cm
Copper Area 2x2 cm
Copper Area 2x2 cm
and via holes
and via holes
20
20
20
20
20
Doc ID 18190 Rev 1
40
40
40
40
40
Copper Area 3x3 cm
Copper Area 3x3 cm
and via holes
and via holes
2
.
60
60
60
60
60
Tamb ( °C)
Tamb ( °C)
Pd max is approximately 4 W
Pd max is approximately 5 W
80
80
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100
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100
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100
Package thermal characteristics
STA559BW
PowerSSO-36
120
120
120
120
120
STA339BW
STA339BW
PSSO36
PSSO36
140
140
140
140
140
160
160
160
160
160
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