TDA1904

TDA1904 4W AUDIO AMPLIFIER HIGH OUTPUT CURRENT CAPABILITY PROTECTION AGAINST CHIP OVERTEMPERATURE LOW NOISE HIGH SUPPLY VOLTAGE REJECTION SUPPLY VOLTAGE RANGE: 4V TO 20V DESCRIPTION The TDA 1904 is a monolithic integrated circuit in POWERDIP package intended for use as low-frequency power amplifier in wide range of applications in portable radio and TV sets. ABSOLUTE MAXIMUM RATINGS Symbol VS IO IO Ptot Supply voltage Peak output current (non repetitive) Peak output current (repetitive) Total power dissipation at Tamb = 80°C at Tpins = 60°C Tstg, Tj Storage and junction temperature Parameter Value 20 2.5 2 1 6 -40 to 150 Unit V A A W W °C Powerdip (8 + 8) ORDERING NUMBER : TDA 1904 TEST AND APPLICATION CIRCUIT (*) R4 is necessary only for Vs < 6V. March 1993 1/10 TDA1904 PIN CONNECTION (top view) SCHEMATIC DIAGRAM THERMAL DATA Symbol Rth-j-case Rth-j-amb Thermal resistance junction-pins Thermal resistance junction-ambient Parameter max max Value 15 70 Unit °C/W °C/W 2/10 TDA1904 ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Tamb = 25 °C, Rth (heatsink) = 20 °C/W, unless otherwisw specified) Symbol Vs Vo Id Po Parameter Supply voltage Quiescent output voltage Quiescent drain current Output power Vs = 4V Vs = 14V Vs = 9V Vs = 14V d = 10% Vs = 9V Vs = 14V Vs = 12V Vs = 6V f = 1 KHz RL = 4Ω 1.8 4 3.1 0.7 Test conditions Min. 4 2.1 7.2 8 10 2 4.5 15 18 Typ. Max. 20 Unit V V mA W d Harmonic distortion f = 1 KHz Vs = 9V R L = 4Ω Po = 50 mW to 1.2W Vs = 9V Vs ...