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TDA7386 4 x 45W quad bridge car radio amplifier Features High output power capability: 4 x 45W/4 max. 4 x 28W/4 @ 14.4V, 1KHz, 10% 4 x 24W/4 @ 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 Flexiwatt25 Load dump voltage Fortuitous open GND 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. Protections Output short circuit to GND, to VS, across the load Very inductive loads Overrating chip temperature with soft thermal limiter Device summary Order code TDA7386 Table 1. Package Flexiwatt25 Packing Tube December 2007 Rev 2 1/14 www.st.com 1 Contents TDA7386 Contents 1 2 Block and pins connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 2.2 2.3 2.4 2.5 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Printed circuit board and component layout . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.1 3.2 3.3 SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Stand-by and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2/14 TDA7386 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3/14 List of figures TDA7386 List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pins connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Components and top copper layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Bottom copper layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Quiescent output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Output power vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Max. output power vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Distortion vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Supply voltage rejection vs. freq. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Output noise vs. source resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Power dissipation and efficiency vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Flexiwatt25 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4/14 TDA7386 Block and pins connection diagram 1 Block and pins connection diagram Figure 1. Block diagram Vcc1 Vcc2 2200F ST-BY N.C. OUT1+ IN1 0.1F OUT1PW-GND OUT2+ IN2 0.1F OUT2PW-GND OUT3+ IN3 0.1F OUT3PW-GND OUT4+ IN4 0.1F AC-GND 0.47F SVR 47F D99AU1018A 100nF MUTE OUT4PW-GND TAB S-GND Figure 2. Pins connection (top view) 1 25 P-GND2 OUT2- ST-BY OUT2+ OUT1- P-GND1 IN1 IN2 IN4 IN3 P-GND3 OUT1+ S-GND AC-GND OUT3+ OUT3- SVR OUT4- P-GND4 OUT4+ D94AU159B MUTE N.C. TAB VCC VCC 5/14 Electrical specifications TDA7386 2 2.1 Electrical specifications Absolute maximum ratings Table 2. Symbol VCC VCC (DC) VCC (pk) IO Ptot Tj Tstg Absolute maximum ratings Parameter Operating supply voltage DC supply voltage Peak supply voltage (t = 50ms) Output peak current: Repetitive (Duty Cycle 10% at f = 10Hz) Non Repetitive (t = 100s) Power dissipation, (Tcase = 70C) Junction temperature Storage temperature Value 18 28 50 4.5 5.5 80 150 - 55 to 150 Unit V V V A A W C C 2.2 Thermal data Table 3. Symbol Rth j-amb Thermal data Parameter Thermal resistance junction to case max. Value 1 Unit C/W 2.3 Table 4. Electrical characteristics Electrical characteristics VS = 14.4V; f = 1KHz; Rg = 600; RL = 4;Tamb = 25C; Refer to the Test and application diagram, unless otherwise specified. Parameter Quiescent current Output offset voltage During mute on/off output offset voltage Voltage gain Channel gain unbalance THD = 10%; VS = 13.2V Po Output power Max.output power (1) Distortion THD = 0.8%; VS = 13.2V THD = 10%; VS = 14.4V VS = 14.4V Po = 4W 22 16.5 26 43 24 18 28 45 0.04 0.15 25 26 RL = Play Mode Test condition Min. Typ. 190 Max. 350 80 80 27 1 Unit mA mV mV dB dB W W W W % Symbol Iq1 VOS VOS Gv Gv Po max THD 6/14 TDA7386 Table 4. Electrical specifications Electrical characteristics (continued) VS = 14.4V; f = 1KHz; Rg = 600; RL = 4;Tamb = 25C; Refer to the Test and application diagram, unless otherwise specified. Parameter Output noise Supply voltage rejection High cut-off frequency Input impedance Cross talk St-by current consumption St-by pin current St-by out threshold voltage St-by in threshold voltage Mute attenuation Mute out threshold voltage Mute in threshold voltage VS automute threshold Muting pin current f = 1KHz; Po = 4W f = 10KHz; Po = 4W VSt-By = 1.5V VSt-By = 0V VSt-By = 1.5 to 3.5V (Amp: ON) (Amp: OFF) POref = 4W (Amp: Play) (Amp: Mute) (Amp: Mute); Att 80dB; POref = 4 (Amp: Play); Att < 0.1dB; PO = 0.5 VMUTE = 1.5V (Source Current) VMUTE = 3.5V 5 -5 7.6 11 80 3.5 1.5 6.5 8.5 20 20 90 3.5 1.5 Test condition "A" Weighted Bw = 20Hz to 20KHz f = 100Hz; Vr = 1Vrms Po = 0.5W 50 80 70 60 Min. Typ. 50 70 75 200 100 70 60 50 20 1 Max. 70 100 Unit V V dB KHz K dB dB A A A V V dB V V V V A A Symbol eNo SVR fch Ri CT ISB Ipin4 VSB out VSB IN AM VM out VM in VAM in Ipin22 1. Saturated square wave output. Figure 3. Standard test and application circuit C8 0.1F C7 2200F Vcc1-2 R1 ST-BY 10K R2 MUTE 47K C1 IN1 0.1F IN2 C2 0.1F IN3 C3 0.1F IN4 C4 0.1F S-GND 14 13 16 C5 0.47F SVR C6 47F 10 25 N.C. 1 TAB 15 12 11 C10 1F C9 1F 22 4 6 Vcc3-4 20 9 8 7 OUT1 5 2 3 OUT2 17 18 19 OUT3 21 24 23 OUT4 D95AU335C 7/14 Electrical specifications TDA7386 2.4 Printed circuit board and component layout Referred to the circuit of Figure 3. Figure 4. Components and top copper layer Figure 5. Bottom copper layer 8/14 TDA7386 Electrical specifications 2.5 Figure 6. Electrical characteristics curves Quiescent current vs. supply voltage Figure 7. Quiescent output voltage vs. supply voltage Figure 8. Output power vs. supply voltage Figure 9. Max. output power vs. supply voltage Figure 10. Distortion vs. output power Figure 11. Distortion vs. frequency 9/14 Electrical specifications TDA7386 Figure 12. Supply voltage rejection vs. freq. Figure 13. Crosstalk vs. frequency Figure 14. Output noise vs. source resistance Figure 15. Power dissipation and efficiency vs. output power 10/14 TDA7386 Application hints 3 Application hints Referred to the circuit of Figure 3. 3.1 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 10F. 3.2 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 (0.1F) is adopted, the low frequency cut-off will amount to 16 Hz. 3.3 Stand-by and muting Stand-by and muting facilities are both 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 A normally flows out of pin 22, the maximum allowable muting-series resistance (R2) is 70K, which is sufficiently high to permit a muting capacitor reasonably small (about 1F). 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. 11/14 Package information TDA7386 4 Package information In order to meet environmental requirements, ST (also) offers these devices in ECOPACK(R) packages. ECOPACK(R) packages are lead-free. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Figure 16. Flexiwatt25 mechanical data and package dimensions 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 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 1.05 0.42 0.57 1.20 24.25 29.30 MIN. 0.175 0.070 0.029 0.014 0.031 0.935 1.139 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 0.041 0.016 0.022 0.047 0.955 1.153 OUTLINE AND MECHANICAL DATA 22.07 18.57 15.50 7.70 22.87 19.37 15.90 7.95 0.869 0.731 0.610 0.303 0.904 0.762 0.626 0.313 3.70 3.60 4.30 4.40 0.145 0.142 0.169 0.173 5 (T p.) 3 (Typ.) 20 (Typ.) 45 (Typ.) Flexiwatt25 (vertical) (1): dam-bar protusion not included (2): molding protusion included V C B V V3 H3 H H1 H2 R3 R4 V1 R2 R L L1 A L4 O L2 N L3 V1 V2 R2 L5 G G1 F FLEX25ME R1 R1 R1 E M M1 D Pin 1 7034862 12/14 TDA7386 Revision history 5 Revision history Table 5. Date 24-Nov-2001 Document revision history Revision 1 Initial release. Document reformatted. Modified the Features on page 1. Modified the Figure 1 and 2. Updated the Table 4: Electrical characteristics. Changes 20-Dec-2007 2 13/14 TDA7386 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. 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