TDA1908

TDA1908 8W AUDIO AMPLIFIER DESCRIPTION The TDA1908 is a monolithic integrated circuit in 12 lead quad in-line plastic package intended for low frequency power applications. The mounting is compatible with the old types TBA800, TBA810S, TCA830S and TCA940N. Its main features are: – flexibility in use with a max output curent of 3A and an operating supply voltage range of 4V to 30V; – protection against chip overtemperature; – soft limiting in saturation conditions; – low ”switch-on” noise; – low number of external components; – high supply voltage rejection; – very low noise. ABSOLUTE MAXIMUM RATINGS Symbol Vs Io Io Ptot Tstg, Tj Supply voltage Output peak current (non repetitive) Output peak current (repetitive) Power dissipation: at Tamb = 80°C at Tamb = 90°C Storage and junction temperature Parameter Value 30 3.5 3 1 5 -40 to 150 Unit V A A W W °C Findip ORDERING NUMBER : TDA1908 APPLICATION CIRCUIT March 1993 1/12 TDA1908 PIN CONNECTION (top view) SCHEMATIC DIAGRAM 2/12 TDA1908 TEST CIRCUIT * See fig. 12 THERMAL DATA Symbol Rth j-tab Rth j-amb Thermal resistance junction-tab Thermal resistance junction-ambient Parameter max max Value 12 (°) 70 Unit °C/W °C/W (°) Obtained with tabs soltered to printed circuit board with min copper area. ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Tamb = 25 °C, Rth (heatsink)= 8 °C/W, unless otherwise specified) Symbol Vs Vo Parameter Supply voltage Quiescent output voltage Vs = 4V Vs = 18V Vs = 30V Vs = 4V Vs = 18V V...