TDA7386 4 x 40W QUAD BRIDGE CAR RADIO AMPLIFIER HIGH OUTPUT POWER CAPABILITY: 4 x 45W/4Ω MAX. 4 x 40W/4Ω EIAJ 4 x 28W/4Ω @ 14.4V, 1KHz, 10% 4 x 24W/4Ω @ 13.2V, 1KHz, 10% LOW DISTORTION LOW OUTPUT NOISE ST-BY FUNCTION MUTE FUNCTION AUTOMUTE AT MIN. SUPPLY VOLTAGE DETECTION LOW EXTERNAL COMPONENT COUNT: – INTERNALLY FIXED GAIN (26dB) – NO EXTERNAL COMPENSATION – NO BOOTSTRAP CAPACITORS PROTECTIONS: OUTPUT SHORT CIRCUIT TO GND, TO VS, ACROSS THE LOAD VERY INDUCTIVE LOADS OVERRATING CHIP TEMPERATURE WITH SOFT THERMAL LIMITER LOAD DUMP VOLTAGE FORTUITOUS OPEN GND FLEXIWATT25 ORDERING NUMBER: TDA7386 REVERSED BATTERY ESD DESCRIPTION The TDA7386 is a new technology class AB Audio Power Amplifier in Flexiwatt 25 package designed for high end car radio applications. Thanks to the fully complementary PNP/NPN output configuration the TDA7386 allows a rail to rail output voltage swing with no need of bootstrap capacitors. The extremely reduced components count allows very compact sets. BLOCK AND APPLICATION DIAGRAM Vcc1 Vcc2 470µF 100nF ST-BY N.C. MUTE OUT1+ IN1 OUT10.1µF PW-GND OUT2+ IN2 OUT20.1µF PW-GND OUT3+ IN3 OUT30.1µF PW-GND OUT4+ IN4 OUT40.1µF PW-GND AC-GND 0.47µF SVR TAB S-GND 47µF D99AU1018 October 1999 1/9 TDA7386 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit Operating Supply Voltage 18 V VCC (DC) DC Supply Voltage 28 V VCC (pk) Peak Supply Voltage (t = 50ms) 50 V Output Peak Current: Repetitive (Duty Cycle 10% at f = 10Hz) Non Repetitive (t = 100µs) 4.5 5.5 A A Power dissipation, (Tcase = 70°C) 80 W VCC IO Ptot Tj Junction Temperature 150 °C Tstg Storage Temperature – 55 to 150 °C PIN CONNECTION (Top view) HSD P-GND4 MUTE OUT4- V CC OUT4+ OUT3- OUT3+ P-GND3 IN3 AC-GND IN4 IN2 S-GND IN1 SVR OUT1+ P-GND1 V CC OUT1- ST-BY OUT2+ OUT2- TAB 25 P-GND2 1 D94AU159A THERMAL DATA 2/9 Symbol Parameter Rth j-case Thermal Resistance Junction to Case Max. Value Unit 1 °C/W TDA7386 ELECTRICAL CHARACTERISTICS (VS = 14.4V; f = 1KHz; Rg = 600Ω; RL = 4Ω; Tamb = 25°C; Refer to the test and application diagram, unless otherwise specified.) Symbol Parameter Test Condition Iq1 Quiescent Current RL = ∞ VOS Output Offset Voltage Play Mode dVOS During mute ON/OFF output offset voltage Gv Voltage Gain dGv Channel Gain Unbalance Po Output Power Po EIAJ Po max. Min. Typ. Max. 190 350 Unit mA ±80 mV ±80 mV 27 dB ±1 dB 25 26 VS = 13.2V; THD = 10% VS = 13.2V; THD = 0.8% VS = 14,4V; THD = 10% 22 16.5 26 24 18 28 EIAJ Output Power (*) VS = 13.7V 37.5 40 W Max. Output Power (*) VS = 14.4V 43 45 W THD Distortion Po = 4W eNo Output Noise ”A” Weighted Bw = 20Hz to 20KHz SVR Supply Voltage Rejection f = 100Hz; Vr = 1Vrms 50 75 dB fch High Cut-Off Frequency PO = 0.5W 80 200 KHz Ri Input Impedance 70 100 CT Cross Talk 60 70 60 ISB St-By Current Consumption VSt-By = 1.5V 100 µA Ipin4 St-by pin Current VSt-By = 1.5V to 3.5V ±10 VSB out St-By Out Threshold Voltage (Amp: ON) µA V VSB in St-By in Threshold Voltage (Amp: OFF) Mute Attenuation POref = 4W 80 VM out Mute Out Threshold Voltage (Amp: Play) 3.5 VM in Mute In Threshold Voltage (Amp: Mute) VAM in VS Automute Threshold (Amp: Mute) Att ≥ 80dB; POref = 4W (Amp: Play) Att < 0.1dB; PO = 0.5W AM Ipin22 Muting Pin Current f = 1KHz PO = 4W f = 10KHz PO = 4W W W W 0.04 0.15 % 50 70 70 100 µV µV KΩ – – 3.5 1.5 VMUTE = 1.5V (Sourced Current) 5 VMUTE = 3.5V -5 90 dB dB V dB V 1.5 V 6.5 V 7.6 8.5 V 11 20 µA 20 µA (*) Saturated square wave output. 3/9 TDA7386 Figure 1: Standard Test and Application Circuit C8 0.1µF C7 2200µF Vcc1-2 Vcc3-4 6 R1 ST-BY 20 4 10K R2 9 C9 1µF MUTE 7 22 47K C10 1µF 5 C1 IN1 3 0.1µF 12 17 C2 0.1µF 19 15 C3 0.1µF 21 IN4 14 S-GND 23 13 C5 0.47µF OUT4 24 16 4/9 OUT3 18 IN3 C4 0.1µF OUT2 2 11 IN2 OUT1 8 10 SVR C6 47µF 25 HSD 1 TAB D95AU335B TDA7386 Figure 2: P.C.B. and component layout of the figure 1 (1:1 scale) COMPONENTS & TOP COPPER LAYER BOTTOM COPPER LAYER 5/9 TDA7386 Figure 3: Quiescent Current vs. Supply Voltage Figure 4: Quiescent Output Voltage vs. Supply Voltage Figure 5: Output Power vs. Supply Voltage Figure 6: Maximum Output Power vs. Supply Voltage Figure 7: Distortion vs. Output Power Figure 8: Distortion vs. Frequency 6/9 TDA7386 Figure 9: Supply Voltage Rejection vs. Frequency Figure 10: Crosstalk vs. Frequency Figure 11: Output Noise vs. Source Resistance Figure 12: Power Dissipation & Efficiency vs. Output Power APPLICATION HINTS (ref. to the circuit of fig. 1) SVR Besides its contribution to the ripple rejection, the SVR capacitor governs the turn ON/OFF time sequence and, consequently, plays an essential role in the pop optimization during ON/OFF transients.To conveniently serve both needs, ITS MINIMUM RECOMMENDED VALUE IS 10µF. CMOS-COMPATIBLE. If unused, a straight connection to Vs of their respective pins would be admissible. Conventional/low-power transistors can be employed to drive muting and stand-by pins in absence of true CMOS ports or microprocessors. R-C cells have always to be used in order to smooth down the transitions for preventing any audible transient noises. Since a DC current of about 10 uA normally flows out of pin 22, the maximum allowable muting-series resistance (R2) is 70KΩ, which is sufficiently high to permit a muting capacitor reasonably small (about 1µF). If R2 is higher than recommended, the involved risk will be that the voltage at pin 22 may rise to above the 1.5 V threshold voltage and the device will consequently fail to turn OFF when the mute line is brought down. About the stand-by, the time constant to be assigned in order to obtain a virtually pop-free transition has to be slower than 2.5V/ms. INPUT STAGE The TDA7386’s inputs are ground-compatible and can stand very high input signals (± 8Vpk) without any performances degradation. If the standard value for the input capacitors (0.1µF) is adopted, the low frequency cut-off will amount to 16 Hz. STAND-BY AND MUTING STAND-BY and MUTING facilities are both 7/9 TDA7386 DIM. A B C D E F (1) G G1 H (2) H1 H2 H3 L (2) L1 L2 (2) L3 L4 L5 M M1 N O R R1 R2 R3 R4 V V1 V2 V3 MIN. 4.45 1.80 0.75 0.37 0.80 23.75 28.90 22.07 18.57 15.50 7.70 3.70 3.60 mm TYP. 4.50 1.90 1.40 0.90 0.39 1.00 24.00 29.23 17.00 12.80 0.80 22.47 18.97 15.70 7.85 5 3.5 4.00 4.00 2.20 2 1.70 0.5 0.3 1.25 0.50 MAX. 4.65 2.00 MIN. 0.175 0.070 1.05 0.42 0.57 1.20 24.25 29.30 0.029 0.014 0.031 0.935 1.138 22.87 19.37 15.90 7.95 0.869 0.731 0.610 0.303 4.30 4.40 0.145 0.142 inch TYP. 0.177 0.074 0.055 0.035 0.015 0.040 0.945 1.150 0.669 0.503 0.031 0.884 0.747 0.618 0.309 0.197 0.138 0.157 0.157 0.086 0.079 0.067 0.02 0.12 0.049 0.019 MAX. 0.183 0.079 OUTLINE AND MECHANICAL DATA 0.041 0.016 0.022 0.047 0.955 1.153 0.904 0.762 0.626 0.313 0.169 0.173 5° (Typ.) 3° (Typ.) 20° (Typ.) 45° (Typ.) Flexiwatt25 (1): dam-bar protusion not included (2): molding protusion included H H1 V3 A H2 O H3 R3 L4 R4 V1 R2 L2 N L3 R L L1 V1 V2 R2 D R1 L5 R1 R1 E G V G1 F M B C V FLEX25ME 8/9 M1 TDA7386 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. 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