Part Number : TDA7372B


Manufactures : ST Microelectronics

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TDA7372B image

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Description :

TDA7372B 4 x 6W POWER AMPLIFIER FOR CAR RADIO ADVANCE DATA HIGH POWER CAPABILITY: 4x6W min/4Ω @14.4V, 1KHz, 10% 4x10W typ/2Ω @14.4V, 1KHz, 10% MINIMUM EXTERNAL COMPONENT COUNT – INTERNALLY FIXED GAIN (40dB) – NO BOOTSTRAP CAPACITORS – NO EXTERNAL COMPENSATION ST-BY FUNCTION (CMOS COMPATIBLE) MUTE FUNCTION (CMOS COMPATIBLE) NO AUDIBLE POP DURING MUTE/ST-BY OPERATIONS LOW SUPPLY SELF MUTING PROGRAMMABLE TURN ON DELAY PROTECTIONS: AC OUTPUT SHORT CIRCUIT TO GND DC OUTPUT SHORT CIRCUIT TO GND AND TO VS AT POWER ON SOFT THERMAL LIMITER OVERRATING CHIP TEMPERATURE LOAD DUMP VOLTAGE BLOCK DIAGRAM MULTIWATT15 ORDERING NUMBER : TDA7372B FORTUITOUS OPEN GND REVERSE BATTERY ESD PROTECTION Description The TDA7372B is a new technology class AB quad channels Audio Power Amplifier in Multiwatt15 package designed for car radio applications. Thanks to the fully complementary PNP/NPN output configuration the TDA7372B delivers a rail to rail voltage swing with no need of boostrap capacitors. April 1995 1/10 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. TDA7372B PIN CONNECTION (Top view) ABSOLUTE MAXIMUM RATINGS Symbol VS VOP VPEAK IO IO Ptot Tstg, Tj DC Supply Voltage Operating Supply Voltage Peak Supply Voltage (t = 50ms) Output Peak Current (not rep. t = 100µs) Output Peak Current (rep. f > 10Hz) Power Dissipation (Tcase = 85°C) Storage and Junction Temperature Parameter Value 28 18 50 4 3 32 -40 to 150 Unit V V V A A W °C THERMAL DATA Symbol Rth j-case Thermal Resistance Junction-case Description Max Value 2 Unit °C/W 2/10 TDA7372B ELECTRICAL CHARACTERISTICS (Refer to the test circuit; VS = 14.4V; RL = 4Ω, Tamb = 25°C, f = 1kHz, unless otherwise specified) Symbol VS Id PO Parameter Supply Range Total Quiescent Drain Current Output Power Test Condition Min. 8 6 Typ. Max. 18 150 Unit V mA W W 0.5 % dB dB KΩ dB dB KHz µV dB dB µA µA mA V V dB V V d CT R IN GV GV BW ENO SVR ASB ISB IPIN 7 Distortion Cross Talk Input Impedance Voltage Gain Voltage Gain Match. Bandwidth Output Noise Voltage (*) Supply Voltage Rejection Stand-by Attenuation ST-BY Current Consumption ST-BY Pin Current R L = 4Ω; THD = 10% each channel R L = 2Ω; THD = 10% each channel R L = 4Ω; PO = 0.1 to 3W f = 1kHz; Rg = 0 f = 10kHz; Rg = 0 6.5 10 0.08 45 35 50 40 40 1 @ -3dB Rg = 0 R g = 0; f = 100Hz Vpin7 = 1.5V Play mode; Vpin7 = 5V Output Under Short (Max driving current under fault) 75 300 45 80 100 50 5 1.5 3.5 80 1.5 3.5 VSB IN VSB OUT AM VM IN VM OUT ST-BY IN Threshold Voltage ST-BY OUT Threshold Voltage MUTE Attenuation MUTE IN Threshold Voltage MUTE OUT Threshold Voltage (*) 22Hz to 22KHz 3/10 TDA7372B TEST AND APPLICATION CIRCUIT R2 10µF C13 If high source resistance is present (e.g. passive audio controls) it might be necessary to add C = 470pF from each input pin to S-GND to prevent instability phenomena. Figure 1: P.C. Board and components layout of […]

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TDA7372B Datasheet

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