Datasheet

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TDA7377

2 x 30W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO
HIGH OUTPUT POWER CAPABILITY: 2 x 35W max./4Ω 2 x 30W/4Ω EIAJ 2 x 30W/4Ω EIAJ 2 x 20W/4Ω @14.4V, 1KHz, 10% 4 x 6W/4Ω @14.4V, 1KHz, 10% 4 x 10W/2Ω @14.4V, 1KHz, 10% MINIMUM EXTERNAL COMPONENTS COUNT: – NO BOOTSTRAP CAPACITORS – NO BOUCHEROT CELLS – INTERNALLY FIXED GAIN (26dB BTL) ST-BY FUNCTION (CMOS COMPATIBLE) NOAUDIBLE POPDURINGST-BYOPERATIONS DIAGNOSTICS FACILITY FOR: – CLIPPING – OUT TO GND SHORT – OUT TO VS SHORT – SOFT SHORT AT TURN-ON – THERMAL SHUTDOWN PROXIMITY Protections: OUPUT AC/DC SHORT CIRCUIT BLOCK DIAGRAM

MULTIWATT15V

MULTIWATT15H

ORDERING NUMBERS: TDA7377V TDA7377H

– TO GND – TO VS – ACROSS THE LOAD SOFT SHORT AT TURN-ON OVERRATING CHIP TEMPERATURE WITH SOFT THERMAL LIMITER LOAD DUMP VOLTAGESURGE VERY INDUCTIVE LOADS FORTUITOUS OPEN GND REVERSED BATTERY ESD

DIAGNOSTICS

September 1998

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TDA7377
DESCRIPTION The TDA7377 is a new technology class AB car radio amplifier able to work either in DUAL BRIDGE or QUAD SINGLE ENDED configuration. The exclusive fully complementary structure of the output stage and the internally fixed gain guaranABSOLUTE MAXIMUM RATINGS
SymbolVop VS Vpeak IO IO Ptot Tstg, Tj Operating Supply Voltage DC Supply Voltage Peak Supply Voltage (for t = 50ms) Output Peak Current (not repetitive t = 100µs) Output Peak Current (repetitive f > 10Hz) Power Dissipation (Tcase = 85°C) Storage and Junction Temperature Parameter Value 18 28 50 4.5 3.5 36 -40 to 150 Unit V V V A A W °C

tees the highest possible power performances with extremelyreduced component count. The on-board clip detector simplifies gain compression operation. The fault diagnostics makes it possible to detect mistakes during car radio set assembly and wiring in the car. GENERAL STRUCTURE

THERMAL DATA
Symbol Rth j-case Description Thermal Resistance Junction-case Max Value 1.8 Unit °C/W

PIN CONNECTION (Top view)

DIAGNOSTICS

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TDA7377
ELECTRICALCHARACTERISTICS (Refer to the test circuit, VS = 14.4V; RL = 4Ω; f = 1KHz; T amb = 25°C, unless otherwise specified
Symbol VS Id VOS PO Parameter Supply Voltage Range Total Quiescent Drain Current Output Offset Voltage Output Power THD = 10%; RL = 4Ω Bridge Single Ended Single Ended, RL = 2Ω VS = 14.4V, Bridge VS = 13.7V, Bridge R L = 4Ω Single Ended, PO = 0.1 to 4W Bridge, PO = 0.1 to 10W f = 1KHzSingle Ended f = 10KHz Single Ended f = 1KHz Bridge f = 10KHz Bridge R IN GV GV EIN Input Impedance Voltage Gain Voltage Gain Match Input Noise Voltage R g = 0; ”A” weighted, S.E. Non Inverting Channels Inverting Channels Bridge Rg = 0; 22Hz to 22KHz SVR A SB ISB V SB V SB Ipin7 Supply Voltage Rejection Stand-by Attenuation ST-BY Current Consumption ST-BY In Threshold Voltage ST-BY Out ThresholdVoltage ST-BY Pin Current Play Mode V pin7 = 5V Max Driving Current Under Fault (*) Icd off Icd on Vsat pin10 Clipping Detector Output Average Current Clipping Detector Output Average Current Voltage Saturation on pin 10 d = 1% (**) d = 5% (**) Sink Current at Pin 10 = 1mA 90 160 0.7 3.5 50 5 R g = 0; f = 300Hz PO = 1W VST-BY = 0 to 1.5V 50 80 90 100 1.5 2 5 3.5 Single Ended Bridge Single EndedBridge 55 60 20 10 19 25 30 15 20 26 21 27 0.5 18 5.5 31 27 20 6 10 35 30 0.02 0.03 70 60 RL = ∞ Test Condition Min. 8 Typ. Max. 18 150 150 Unit V mA mV W W W W W % % dB dB dB dB KΩ KΩ dB dB dB µV µV µV dB dB µA V V µA mA µA µA V

PO max PO EIAJ THD

Max. Output Power (***) EIAJ Output Power (***) Distortion

0.3

CT

Cross Talk

(*) See built-in S/C protection description (**) Pin 10Pulled-up to 5V with 10KΩ; RL = 4Ω (***) Saturated square wave output.

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TDA7377
STANDARD TEST AND APPLICATION CIRCUIT Figure 1: Quad Stereo
10K R1 ST-BY C7 10µF IN FL C1 0.22µF IN FR C2 0.22µF IN RL C4 0.22µF IN RR 11 C3 0.22µF 6 C8 47µF 8 9 14 10 C12 2200µF
D94AU063A

C6 100nF 7 13 3 1

VS C5 1000µF

4

C10 2200µF 5 2 C9 2200µF 15 C11 2200µF

OUT FL

12

OUT FR

OUT RL...