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| TDA7379 4 X 13 - 2 X 38W AUDIO POWER AMPLIFIER 2 X 13 + 1 X 38W AUDIO POWER AMPLIFIER PRODUCT PREVIEW HIGH OUTPUT POWER CAPABILITY 2 x 38W/4 @18V, 1KHz, 10% 4 x 11W/4 @18V, 1KHz, 10% 2 x 20W/8 @18V; 1KHz, 10% 4 x 13W/2 @15V, 1KHz, 10% 2 x 34W/8 @ 22V, 1kHz, 10% MINIMUM EXTERNAL COMPONENTS COUNT: - NO BOOTSTRAP CAPACITORS - NO BOUCHEROT CELLS - INTERNALLY FIXED GAIN (26dB BTL) ST-BY FUNCTION (CMOS COMPATIBLE) NO AUDIBLE POP DURING ST-BY OPERATIONS DIAGNOSTIC FACILITIES - CLIP DETECTOR - OUT TO GND SHORT - OUT TO VS SHORT - SOFT SHORT AT TURN-ON - THERMAL SHUTDOWN PROXIMITY Protections: Multiwatt15 (Vertical) ORDERING NUMBER: TDA7379 OUPUT AC/DC SHORT CIRCUIT - TO GND - TO VS - ACROSS THE LOAD SOFT SHORT AT TURN-ON OVERRATING CHIP TEMPERATURE WITH SOFT THERMAL LIMITER FORTUITOUS OPEN GND REVERSED BATTERY ESD BLOCK DIAGRAM March 2004 This is preliminary information on a new product now in development. Details are subject to change without notice. 1/7 TDA7379 DESCRIPTION The TDA7379 is a new technology class AB audio processor 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 guarantee the highest power performances with extremely reduced component count. The on board clip detector simplifies gain compression operation. The fault diagnostic makes it possible to detect mistakes during the set assembly and wiring in the equipment. ABSOLUTE MAXIMUM RATINGS Symbol Parameter Supply Voltage Idle mode (no signal) Supply Voltage operating Supply Voltage AC-DC-short safe IO IO Ptot Tstg, Tj Output Peak Current (not repetitive t = 100s) Output Peak Current (repetitive f > 10Hz) Power Dissipation Tcase = 85C Storage and Junction Temperature Value 24 22 20 5 4 36 -40 to 150 Unit V V V A A W C Vs THERMAL DATA Symbol Rth j-case Parameter Thermal Resistance Junction to case Max Value 1.8 Unit C/W PIN CONNECTION (Top view) 2/7 TDA7379 ELECTRICAL CHARACTERISTCS (Refer to the test circuit, VS = 15V; RL = 4; f = 1KHz; Tamb = 25C, unless otherwise specified). Symbol VS Id VOS PO Parameter Supply Voltage Range Total Quiescent Drain Current Output Offset Voltage Output Power Test Condition RL = THD = 10%; RL = 4 Bridge Single Ended Single Ended, RL = 2 THD = 10%; Vs = 18V Single Ended, RL = 4 BTL, RL = 4 THD = 10%; Vs = 18V BTL, RL = 8 THD=10%; VS = 22V Bridge, RL = 8 Single Ended, RL = 4 Min. 8 Typ. Max. 20 150 150 Unit V mA mV W W W W W W W W % % dB dB dB dB K K 25 6.5 28 7.5 13 11 38 20 34 16 0.02 0.03 70 60 PO Output Power THD Distortion RL = 4 Single Ended, PO = 0.1 to 4W Bridge, PO = 0.1 to 10W f = 1KHz Single Ended f = 10KHz Single Ended f = 1KHz Bridge f = 10KHz Bridge 55 0.3 CT Cross Talk 60 20 10 19 25 30 15 20 26 21 27 0.5 RIN GV GV EIN Input Impedance Voltage Gain Voltage Gain Match Input Noise Voltage Single Ended Bridge Single Ended Bridge Rg = 0; "A" weighted, S.E. Non Inverting Channels Inverting Channels Bridge Rg = 0; 22Hz to 22KHz dB dB dB V V V dB dB 2 5 3.5 50 80 90 100 1.5 3.5 SVR ASB ISB VSB VSB Ipin7 Supply Voltage Rejection Stand-by Attenuation ST-BY Current Consumption ST-BY In Threshold Voltage ST-BY Out Threshold Voltage ST-BY Pin Current Rg = 0; f = 300Hz PO = 1W VST-BY = 0 to 1.5V A V V A mA A A Play Mode Vpin7 = 5V Max Driving Current Under Fault (*) 50 5 90 160 0.7 Icd off 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 Icd on Vsat pin10 V (*) See built-in S/C protection description (**) Pin 10 Pulled-up to 5V with 10K; RL = 4 3/7 TDA7379 STANDARD TEST AND APPLICATION CIRCUIT Figure 1. Quad Stereo 10K R1 ST-BY C7 10F IN FL C1 0.22F IN FR C2 0.22F IN RL C4 0.22F 12 15 11 C3 0.22F 6 C8 47F 8 9 14 10 C12 2200F D94AU063A C6 100nF 7 13 3 1 VS C5 1000F 4 C10 2200F 5 2 C9 2200F OUT FL OUT FR Note: The output decoupling capacitors (C9,C10,C11,C12) could be reduced to 1000F if the 2 operation is not required. IN RR C11 2200F OUT RL OUT RR DIAGNOSTICS Figure 2. Double Bridge 10K R1 ST-BY C5 10F IN L C1 0.47F IN R C2 0.47F 4 5 12 11 6 C8 47F 8 9 10 DIAGNOSTICS D94AU064A C4 100nF 7 13 3 1 VS C3 1000F OUT L 2 15 OUT R 14 Figure 3. Stereo/Bridge 10K ST-BY 10F 7 13 3 100nF VS 1000F IN L 0.22F IN L 0.22F IN BRIDGE 0.47F 4 1 2200F OUT L 5 2 2200F OUT R 12 11 6 47F 8 9 10 15 OUT BRIDGE 14 DIAGNOSTICS D94AU065A 4/7 TDA7379 Figure 4. P.C. Board and Component Layout of the fig.1. Figure 5. P.C. Board and Component Layout of the fig.2 5/7 TDA7379 mm MIN. TYP. MAX. MIN. inch TYP. MAX. 0.197 2.65 1.6 1 0.49 0.66 1.02 17.53 19.6 20.2 21.9 21.7 17.65 17.25 10.3 2.65 4.25 4.73 1.9 1.9 3.65 4.55 5.08 17.5 10.7 22.2 22.1 22.5 22.5 18.1 17.75 10.9 2.9 4.85 5.43 2.6 2.6 3.85 0.862 0.854 0.695 0.679 0.406 0.104 0.167 0.186 0.075 0.075 0.144 0.179 0.200 0.689 0.421 0.874 0.87 1.27 17.78 0.55 0.75 1.52 18.03 0.019 0.026 0.040 0.690 0.772 0.795 0.886 0.886 0.713 0.699 0.429 0.114 0.191 0.214 0.102 0.102 0.152 0.050 0.700 0.039 0.022 0.030 0.060 0.710 0.104 0.063 DIM. A5 B C D E F G G1 H1 H2 L L1 L2 L3 L4 L7 M M1 S S1 Dia1 OUTLINE AND MECHANICAL DATA Multiwatt15 (Vertical) 0016036 J 6/7 TDA7379 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. Specifications 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. All other names are the property of their respective owners (c) 2004 STMicroelectronics - All rights reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States www.st.com 7/7 |
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