TDA7451 4x7W OR 2x22W CAR RADIO POWER AMPLIFIER PLUS TRIPLE POWER SUPPLY PRELIMINARY DATA HIGH OUTPUT POWER CAPABILITY: 4 x 9.5W OR 2 x 32W/4Ω MAX 4 x 8.5W OR 2 x 28W/4Ω EIAJ 4 x 7W OR 2 x 22W/4Ω @14.4V, 1KHz; 10% MINIMIZED EXTERNAL COUNT - NO NEED OF DECOUPLING CAPACITORS - NO NEED OF BOOTSTRAP CAPACITOR - NO NEED OF EXTERNAL COMPENSATION - INTERNALLY FIXED GAIN (20dB) POP-FREE AUDIO SECTION ST-BY FUNCTION (C-MOS) MUTE FUNCTION (C-MOS) CLIP DETECTOR, THERMAL WARNING, SHORT CIRCUIT DETECTION BUILT-IN VOLTAGE REGULATORS: - 5V @ 150mA WITH RESET - 5V @ 500mA WITH ST-BY - 8.5V @ 200mA WITH ST-BY REGULATORS DIAGNOSTIC FEATURE: UNDERVOLTAGE, 8.5V DROP SENSE, SHORT CIRCUIT, LOAD DUMP, OVER-TEMPERA- Flexiwatt25 ORDERING NUMBER: TDA7451 TURE PROTECTIONS General: LOAD DUMP OVERRATING CHIP TEMPERATURE Audio Section: OUT SHORT (TO GND, TO Vs AND ACROSS THE LOAD) Power Supply Section: SHORT CIRCUIT PROTECTION (OUT TO GND) BLOCK DIAGRAM IN RR IN RF 10KΩ MUTE 0.1µF 0.1µF 10µF VCC VCC1 10KΩ 12 22 8 ST-BY 11 1µF VCC2 6 V O3 2 200mA REG. 23 V O2 3 500mA REG. - V O1 22K 10µF hvcc 4 21 - 25 HVCC 17 + + 9 RESET + LF 150mA REG. 22K - RR 10µF 5V + RF 10µF 5V 1000µF 20 + 8.5V 0.1µF 1 - TAB LR 7 DIAG SVR DIAG 10 5 - 15 14 16 STCAP 47µF 470µF 19 13 DDL 0.1µF 18,24 PW-GND + S-GND 0.1µF D95AU311C IN LF IN LR October 1999 1/9 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. TDA7451 ABSOLUTE MAXIMUM RATINGS Symbol Value Unit VS Operating Supply Voltage Parameter 18 V VS DC Supply Voltage 28 V VS Peak Supply Voltage (t = 50ms) 40 V Io Audio Output Peak Current (non repetitive t = 100µs) 4 A Audio Output Peak Current (repetitive f > 10Hz) 3 A Io Voltage Regulators Output Current Ptot Power Dissipation at Tcase = 85°C Tstg, Tj internally limited Storage and Junction Temperature Range 55 W -40 to 150 °C V V out Output Voltages (DIAG, RESET) 7 Vin Input Voltages (ST-BY, MUTE) 18 V 0.2 to 10 Ω RESR Output capacitor series resistance PIN CONNECTION HVCC PWGND MUTE OUT-RF VCC2 OUT-RR OUT-LR PWGND DDL OUT-LF IN-LF IN-LR IN-RR SGND SVR IN-RF RESET DIAG ST-BY VCC1 REG1 ST-CAP REG2 TAB 25 REG3 1 D95AU315 THERMAL DATA Symbol Rth j-case 2/9 Parameter Thermal Resistance Junction-case Unit 1.2 °C/W TDA7451 PO = 4 X 7W S.E. APPLICATION IN RR IN RF 10KΩ MUTE 0.1µF VCC 0.1µF VCC2 VCC1 10µF 10KΩ 12 22 8 ST-BY 11 6 20 23 1µF 8.5V VO3 2 VO2 3 V O1 4 + RF 10µF 5V 1000µF 0.1µF 21 - 25 HVCC + RR 10µF 5V LF 10µF 22K 22K 17 + 9 RESET 1 - TAB LR 7 DIAG 19 PW-GND SVR 10 5 15 16 14 STCAP 47µF 470µF 13 DDL 0.1µF + 18,24 S-GND 0.1µF D96AU514 IN LF IN LR PO = 2 X 22W BTL APPLICATION IN R 10KΩ MUTE 0.22µF 10µF VCC VCC2 VCC1 22 12 11 0.1µF 6 1000µF 20 10KΩ 23 ST-BY + 8 1µF VO3 8.5V OUT R 2 10µF VO2 5V 3 10µF 25 VO1 5V 22K 10µF - 21 4 17 22K RESET 9 DIAG 7 SVR 1 OUT L - 19 10 5 15 STCAP 47µF + TAB 470µF 14 16 DDL 13 18,24 PW-GND S-GND 0.22µF D96AU515 IN L 3/9 TDA7451 ELECTRICAL CHARACTERISTICS (Refer to the test circuit; VS = 14.4V; RL = 4Ω, Tamb = 25°C, f = 1kHz, unless otherwise specified) Symbol Parameter Test Condition Min. Typ. Max. Unit 80 150 1.5 mA V V mA GENERAL Iq VSB IN VSB OUT IST-BY Total Quiescent Current ST-BY IN Threshold Voltage ST-BY OUT Threshold Voltage Stand-by Current Consumption IL01, IL02, IL03 = 5mA 3.5 IL01 = 2mA 0.5 AUDIO SECTION PO Po EIAJ Po max. d Output Power EIAJ Output Power (**) Max. Output Power (**) Distortion CT Cross Talk R IN Input Impedance GV Voltage Gain GV BW ENO SVR ASB IPIN 8 AM VM IN VM OUT ICD Voltage Gain Match. Bandwidth Output Noise Voltage (*) Supply Voltage Rejection Stand-by Attenuation ST-BY Pin Current MUTE Attenuation MUTE IN Threshold Voltage MUTE OUT Threshold Voltage Clipping Detector Current (Pull up to 5V with 10KΩ) R L = 4Ω; THD = 10% Bridge Single Ended VS = 13.7V Bridge Single Ended VS = 14.4V Bridge Single Ended R L = 4Ω; Single Ended, PO = 0.1 to 3W Bridge, PO = 0.1 to 8W f = 1kHz; Rg = 0 f = 10kHz; R g = 0 Single Ended Bridge Single Ended Bridge -3dB R g = 0; Single Ended R g = 0; f = 100Hz; Single Ended Play mode; Vpin8 = 5V 19 6 22 7 W W 26 7.5 28 8.5 W W 30 8 32 9.5 W W 50 70 35 19 25 0.04 0.06 60 55 100 50 20 26 0.3 0.3 5 280 % % dB dB KΩ KΩ dB dB dB KHz µV dB dB µA dB V V µA µA 5.15 80 600 700 V mV mA mV 10 40 dB dB mV 4.0 4.25 250 4.7 130 65 21 27 1 100 48 90 -10 80 100 55 100 30 90 1.5 3.5 CDoff: Pomin = 3.5W CDon: THD = 5% 50 190 4.85 5 250 350 POWER SUPPLY SECTION V O1 ∆VO1 ILO1 ∆VO1 SVR ∆VO1 Output Voltages Load Regulation 1 Current Limit Dropout Voltages Ripple Rejection Line Regulation 1 I01 = 5mA I01 = 5 to 150mA V01 = 0V I01 = 150mA Vripple = 1Vpp; I01 = 50mA f = 100Hz f = 10KHz VS = 8 to 18V; IO1 = 5mA 60 50 RESET Reset On Reset Off Reset Hyst Vout on Reset Low VREG1 Reset On Threshold Low VREG1 Reset Off Threshold Reset Threshold Hysteresis vs Reg 1 Reset Output Voltage (*) 22Hz to 22KHz 4/9 3.5 Reset activated R(Reset to VReg1) ≥ 15K 500 V V mV 1.5 V TDA7451 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit 7 7.5 7.6 100 21 90 8 150 22 200 V V mV V mV 1.5 V 5.15 100 1.5 1.5 V mV A V 40 8.75 80 800 1 dB dB mV V mV mA V 40 dB dB mV DIAGNOSTIC OUTPUT Diag On Vs Diag Off Vs Diag Hyst Vs Diag Dump Diag On Drop Vout On Diag V O2 ∆VO2 IL02 ∆VO2 SVR ∆VO2 V O3 ∆VO3 IL03 ∆VO3 SVR ∆VO3 Low Vs Diag. ON Threshold Low Vs Diag. OFF Thrershold Low Vs Diag. Hysteresis Diag. Threshold vs Overvoltage VREG3 Output Voltage Drop Before Diag. Activation Diag. Output Voltage 20 IO3 = 100mA Diag activated R (Diag to VREG1) ≥ 15K IO2 = 5mA IO2 = 5 to 500mA VO2 = 0V IO2 = 500mA Vripple = 1Vpp; I02 = 100mA f = 100Hz f = 10KHz VS = 8 to 18V, IO2 = 5mA IO3 = 5mA IO3 = 5 to 200mA Output Voltage 2 Load Regulation 2 Current Limit 2 Dropout Voltage Ripple Rejection Line Regulation Output Voltage 3 Load Regulation 3 Current Limit 3 Dropout Voltage Ripple Rejection 5 0.8 1 1 60 50 IO3 = 200mA Vripple = 1Vpp; I03 = 100mA f = 100Hz f = 10KHz VS = 11 to 18V, IO3 = 5mA Line Regulation 3 4.85 8.25 10 8.5 300 400 60 50 10 DIAGNOSTIC DIAGRAM DIAG STCAP VCC STCAP HYST=0.1V 7.5V SHORT + OUT DUMP RESET HYST=0.5V 4V + 21V REG1 REG1 5V 150mA - OUT REG3 REG3 8.5V 200mA Tj>170 DROP SENSE EN + 2.8V OUT SHORT - OUT REG2 REG2 5V 500mA EN + 2.2V - SHORT ST-BY + AMPLIFIERS OVERLOAD CD REFERENCE EN CLIPPING AMPLIFIERS Tj>150 D96AU504B 5/9 TDA7451 VOLTAGE SUPPLY SECTION WAVEFORMS VCC 8.5 7.6 5 VREG1 4.25 4 RESET OFF ON ST-BY 2.2 VREG2 5V VREG3 8.5 DIAG OFF ON D96AU505B 6/9 TDA7451 AUDIO SECTION WAVEFORMS ST-BY PIN VOLTAGE t MUTE PIN VOLTAGE t Vs OUTPUT WAVEFORM t Vpin 16 WAVEFORM t CLIPPING D96AU516 SHORT TO GND OR TO Vs THERMAL PROXIMITY 7/9 TDA7451 DIM. MIN. 4.45 1.80 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 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 22.87 19.37 15.90 7.95 0.869 0.731 0.610 0.303 4.30 4.40 0.145 0.142 0.031 0.935 1.138 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 TDA7451 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. The ST logo is a registered trademark of STMicroelectronics 1999 STMicroelectronics – Printed in Italy – All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com 9/9