MACHINE THESE

3 EDGES AFTER

ANODIZATION

0.00

–0.60

+.000

–.024

SINK HEIGHT

25.00

.984

1.00

[.118]

3.00

[.118]

50.00±0.38

[1.969±.015]

SINK LENGTH

3.00

[.118]

6.35

[.250]

13.90±0.38

[.547±.015]

BASE WIDTH

6.95

[.274]

5.00

[.197]

40.00

[1.575]

2X 4-40

6.5

x

TPA3116D2-Q1, TPA3118D2-Q1

www.ti.com

SLOS862A – JULY 2015 – REVISED AUGUST 2015

10.3 Heat Sink Used on the EVM

The heat sink (part number ATS-TI 10 OP-521-C1-R1 or equivalent) used on the EVM is a 14-mm × 25-mm ×

50-mm extruded aluminum heat sink with three fins (see Figure 24). For additional information on the heat sink,

go to www.qats.com.

Figure 24. EVM Heatsink

This size heat sink has shown to be sufficient for continuous output power. The crest factor of music and having

airflow lowers the requirement for heat sinking, and smaller types of heat sinks can be used.

Copyright © 2015, Texas Instruments Incorporated

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