TDA7245A

TDA7245A 6W AUDIO AMPLIFIER WITH STAND-BY STAND-BY FUNCTION SUPPLY VOLTAGE RANGE UP TO 30V MUSIC POWER = 16W (RL = 4Ω, d = 10%) THERMAL PROTECTION DESCRIPTION The TDA7245A is a monolithic integrated circuit in 9+9 POWERDIP package, intended for use as low frequency power amplifier in a wide range of applications in radio and TV sets. Figure 1: Test and Application Circuit Powerdip 9+9 ORDERING NUMBER: TDA7245A May 1997 1/6 TDA7245A ABSOLUTE MAXIMUM RATINGS Symbol VS IO IO Ptot Tstg, Tj Supply Voltage Output Peak Current (non repetitive t = 100µs) Output Peak Current (repetitive, f > 20Hz) Power Dissipation at Tamb = 80°C at T case = 70°C Storage and junction Temperature Parameter Value 30 3 2.5 1 6 -40 to 150 Unit V A A W W °C PIN CONNECTION (Top view) Figure 2: Schematic Diagram THERMAL DATA Symbol Rth j-case Rth j-amb Description Thermal Resistance junction-case Thermal Resistance junction-ambient Max Max Value 15 70 Unit °C/W °C/W 2/6 TDA7245A ELECTRICAL CHARACTERISTICS (Refer to the test circuit, T amb = 25°C, VS = 16.5V, RL = 4Ω, f = 1kHz; unless otherwise specified). Symbol VS VO Id PO Parameter Supply Voltage Quiescent Output Voltage Quiescent Drain Current Output Power VS = 24V VS = 28V d = 1% VS = 16.5V, R L = 4Ω VS = 20V, R L = 8Ω d = 10% VS = 16.5V, R L = 4Ω VS = 20V, R L = 8Ω Music Power (*) VS = 24V, d = 10%, RL = 4Ω PO = 50mW to 4W f = 1KHz f = 10KHz VS = 20V, R L = 8Ω, PO = 50mW to 3.5W f = 1KHz f = 10KHz RI BW GV GV eN Input Impedance Small signal...