Part Number: TDA7293
Function: 120V – 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
Manufacturer: ST Microelectronics
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Description
® TDA7293 120V – 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY VERY HIGH OPERATING VOLTAGE RANGE (±50V) DMOS POWER STAGE HIGH OUTPUT POWER (100W @ THD = 10%, RL = 8Ω, VS = ±40V) MUTING/STAND-BY FUNCTIONS NO SWITCH ON/OFF NOISE VERY LOW DISTORTION VERY LOW NOISE SHORT CIRCUIT PROTECTION THERMAL SHUTDOWN CLIP DETECTOR MODULARITY (MORE DEVICES CAN BE EASILY CONNECTED IN PARALLEL TO DRIVE VERY LOW IMPEDANCES) Description The TDA7293 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications (Home Stereo, self powered loudspeakers, TopFigure 1: Typical Application and Test Circuit MULTIPOWER BCD TECHNOLOGY Multiwatt15 ORDERING NUMBER: TDA7293V class TV). Thanks to the wide voltage range and to the high out current capability it is able to supply the highest power into both 4Ω and 8Ω loads. The built in muting function with turn on delay simplifies the remote operation avoiding switching on-off noises. Parallel mode is made possible by connecting more device through of pin11. High output power can be delivered to very low impedance loads, so optimizing the thermal dissipation of the system. C7 100nF R3 22K C2 R2 22µF 680Ω C1 470nF +Vs IN2 7 BUFFER DRIVER 11 +Vs C6 1000µF +PWVs 13 14 OUT BOOT LOADER C5 22µF 6 5 BOOTSTRAP CLIP DET VCLIP (*) IN+ 3 + 12 R1 22K SGND (**) VMUTE R5 10K MUTE 10 MUTE VSTBY R4 22K 1 STBY-GND C3 10µF C4 10µF 8 -Vs C9 100nF -Vs 15 -PWVs C8 1000µF STBY 9 STBY THERMAL SHUTDOWN S/C PROTECTION 4 D97AU805A (*) see Application note (**) for SLAVE function December1999 1/13 TDA7293 PIN CONNECTION (Top view) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 -VS (POWER) OUT +VS (POWER) BOOTSTRAP LOADER BUFFER DRIVER MUTE STAND-BY -VS (SIGNAL) +VS (SIGNAL) BOOTSTRAP CLIP AND SHORT CIRCUIT DETECTOR SIGNAL GROUND NON INVERTING INPUT INVERTING INPUT STAND-BY GND TAB CONNECTED TO PIN 8 D97AU806 QUICK REFERENCE DATA Symbol VS GLOOP Ptot SVR Parameter Supply Voltage Operating Closed Loop Gain Output Power Supply Voltage Rejection VS = ±45V; RL = 8Ω; THD = 10% VS = ±30V; RL = 4Ω; THD = 10% Test Conditions Min. ± 12 26 140 110 75 Typ. Max. æ 50 40 Unit V dB W W dB ABSOLUTE MAXIMUM RATINGS Symbol VS V1 V2 V2 – V3 V3 V4 V5 V6 V9 V10 V11 V12 IO Ptot Top Tstg, Tj Parameter Supply Voltage (No Signal) VSTAND-BY GND Voltage Referred to -VS (pin 8) Input Voltage (inverting) Referred to -VS Maximum Differential Inputs Input Voltage (non inverting) Referred to -VS Signal GND Voltage Referred to -VS Clip Detector Voltage Referred to -VS Bootstrap Voltage Referred to -VS Stand-by Voltage Referred to -VS Mute Voltage Referred to -VS Buffer Voltage Referred to -VS Bootstrap Loader Voltage Referred to -VS Output Peak Current Power Dissipation T case = 70°C Operating Ambient Temperature Range Storage and Junction Temperature Value ± 60 90 90 ± 30 90 90 120 120 120 120 120 100 10 50 0 to 70 150 Unit V V V V V V V V V V V V A W °C °C THERMAL DATA Symbol Rth j-c […]
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