Integrated Circuit - Marshall, TDA7293 amplifier

Integrated Circuit - Marshall, TDA7293 amplifier

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120V - 100W DMOS audio amplifier with mute/standby.

The TDA7293 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications, such as home stereo, self powered loudspeakers and Topclass TV. Thanks to the wide voltage range and to the high output current capability it is able to supply the highest power into both 4-Ω and 8-Ω loads.

The built-in muting function with turn-on delay simplifies the remote operation avoiding on-off switching noises.

Parallel mode is possible by connecting several devices and using pin11. High output power can be delivered to very low impedance loads, so optimizing the thermal dissipation of the system

Item ID:
Product Measurements by Type
Closed Loop Voltage Gain (GV(closed))29 dB - 31 dB, 30 dB typical
Continuous Output Power (PO)75 W min, 80 W typical
Current Limiter Threshold (ISC)6.5 A
Harmonic Distortion0.005 % typical
Input Offset Current (IIO)0.2 μA
Input Offset Voltage (VIO)-10 mV to 10 mV
Input Resistance (RIN)≥ 100 kΩ
Mute Attenuation (ATTmute)60 dB - 80 dB
Mute Off Threshold (VMoff)≥ 3.5 V
Mute On Threshold (VMon)≤ 1.5 V
Open Loop Voltage Gain (GV(open))80 dB
Quiescent Current (IQ)≤ 100 mA, 50 mA typical
Quiescent Current, standby (Iq st-by)≤ 1 mA, 0.5 mA typical
Slew Rate (sr)≥ 5 V/μs, 10 V/μs typical
Standby Attenuation (ATTst-by)≥ 70 dB, 90 dB typical
Standby Off Threshold (VSToff)≥ 3.5 V
Standby On Threshold (VSTon)≤ 1.5 V
Supply Range (VS)± 12 V to ± 50 V
Supply Voltage Rejection Ratio (svr)75 dB
Thermal Protection (Ts)150°C
Thermal Resistance, junction to case (RθJC)≤ 1.5°C/W, 1°C/W typical
Total Input Noise (eN)1 μV
input bias current (IB)≤ 1 μA, 0.3 μA typical
Packaging Information
Packaging Dimensions0.786 in. × 1 in. × 0.38 in.
Weight (Packaging)0.013 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet353.47 KB