TDA7298

TDA7298 28W Hi-Fi AUDIO POWER AMPLIFIER WITH MUTE / STAND-BY SUPPLY VOLTAGE RANGE UP TO ±22V SPLIT SUPPLY OPERATION HIGH OUTPUT POWER (UP TO 28W MUSIC POWER) LOW DISTORTION MUTE/STAND-BY FUNCTION NO SWITCH ON/OFF NOISE AC SHORT CIRCUIT PROTECTION THERMAL SHUTDOWN ESD PROTECTION DESCRIPTION The TDA7298 is a monolithic integrated circuit in Heptawatt package, intended for use as audio class AB amplifier in TV or Hi-Fi field application. Thanks to the wide voltage range and to the high out current capability it’s able to supply the highTEST AND APPLICATION CIRCUIT Heptawatt ORDERING NUMBER: TDA7298 est power into both 4Ω and 8Ω loads even in presence of poor supply regulation. The built in Muting/Stand-by function simplifies the remote operations avoiding also switching onoff noises. May 1997 1/11 TDA7298 ABSOLUTE MAXIMUM RATINGS Symbol VS IO Ptot Top Tstg, Tj DC Supply Voltage Output Peak Current (internally limited) Power Dissipation T case = 70°C Operating Temperature Range Storage and Junction Temperature Parameter Value ± 22 4 30 0 to +70 -40 to +150 Unit V A W °C °C PIN CONNECTION (Top view) BLOCK DIAGRAM 2/11 TDA7298 THERMAL DATA Symbol Rth j-case Description Thermal Resistance Junction-case Max Value 2.5 Unit °C/W ELECTRICAL CHARACTERISTICS (Refer to the test circuit, G V = 32dB; VS + 18V; f = 1KHz; Tamb = 25°C, unless otherwise specified.) Symbol VS Iq Ib VOS IOS PO PO Parameter Supply Range Total Quiescent Current Input Bias Current Input Offset Voltage Input...