This part is a kind of semiconductor called AN7580.

Function of this product has Silicon Monolithic Bipolar IC.

Manufacturers : Matsushita

Image and pinout :

Some of the text within the PDF file :

Prepared Checked Approved Product Specifications Ref No. Total Page Page No. A-1 8 1 AN7580 Structure Appearance Application Function Silicon Monolithic Bipolar IC SIL-12 Pins Plastic Package (FP-12S Power Type With Fin) Audio 25W (6Ω) x 2ch BTL Power Amplifier Built-in Standby and Muting Features Incorporating Various Protection Circuits A No. 1 2 3 4 5 6 7 8 Item Storage Temperature Absolute Maximum Ratings Symbol Tstg Topr Popr Gopr Sopr Vcc Icc PD Ratings -55 ~ +150 -25 ~ +75 1.013x105 ±0.61x105 Unit °C °C Pa m/s m/s V A W 2 2 Note Operating Ambient Temperature Operating Ambient Pressure Operating Constant Acceleration Operating Shock Power Supply V oltage Power Supply Current Power Dissipation 9,810 4,900 24 8.0 37.5 1 2 Operating Supply V oltage Range Note: 1) Wi [ ... ]

AN7580 PDF Datasheet Download