LA4663 Datasheet, PDF (4/10 Pages) Sanyo Semicon Device – Two-Channel 16-W BTL General-Purpose Audio Power Amplifier

LA4663
4. Notes on heat sink mounting
• Use a tightening torque of between 39 and 59 N·cm.
• Make the spacing of the heat sink mounting screw holes the same as the spacing of the IC mounting screw holes. Also,
make the mounting screw hole spacing as short as possible within the range that still allows mounting, referring to the
external dimensions L and R.
L
R
+
+
A10629
• For mounting screws, use screws that correspond to either the truss screws or binding screws stipulated by the JIS
(Japan Industrial Standards). Use washers to protect the IC case.
• Do not allow any foreign matter, such as machining chips, to get between the IC (package internal) heat sink and the
external heat sink. Also, if grease is applied to the junction, apply the grease as evenly as possible.
5. Other notes
• The LA4663 is a BTL power amplifier IC. When connecting this IC to test equipment, do not allow the test equipment
grounds for the input and output systems to be shared grounds.
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