TDA7386 4 x 45 W 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 Standby function Load dump voltage Mute function Fortuitous open GND Automute at min. supply voltage detection Reversed battery Low external component count: - Internally fixed gain (26dB) - No external compensation - No bootstrap capacitors ESD Flexiwatt25 Description The TDA7386 is an AB class audio power amplifier, packaged in Flexiwatt 25 and designed for high end car radio applications. Protections Output short circuit to GND, to VS, across the load Very inductive loads Overrating chip temperature with soft thermal limiter Table 1. Based on a fully complementary PNP/NPN configuration, the TDA7386 allows a rail to rail output voltage swing with no need of bootstrap capacitors. The extremely reduced boundary components count allows very compact sets. Device summary Order code Package Packing TDA7386 Flexiwatt25 Tube November 2008 Rev 4 1/14 www.st.com 1 Contents TDA7386 Contents 1 Block and pin connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.4 PCB and component layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.5 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.1 SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.2 Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.3 Standby and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5 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. 4/14 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin 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. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 TDA7386 Block and pin connection diagrams Figure 1. Block diagram Vcc1 Vcc2 2200F 100nF ST-BY N.C. MUTE OUT1+ OUT1- IN1 PW-GND 0.1F OUT2+ OUT2- IN2 0.1F PW-GND OUT3+ OUT3- IN3 PW-GND 0.1F OUT4+ OUT4- IN4 0.1F PW-GND AC-GND SVR 0.47F TAB S-GND 47F D99AU1018A Pin connection (top view) N.C. P-GND4 MUTE OUT4- VCC OUT4+ OUT3- OUT3+ P-GND3 IN3 AC-GND IN4 IN2 S-GND IN1 SVR OUT1+ P-GND1 VCC OUT1- ST-BY OUT2+ 25 OUT2- 1 TAB Figure 2. P-GND2 1 Block and pin connection diagrams D94AU159B 5/14 Electrical specifications TDA7386 2 Electrical specifications 2.1 Absolute maximum ratings Table 2. 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 = 100s) 4.5 5.5 A A Ptot Power dissipation, (Tcase = 70C) 80 W Tamb Operating temperature range - 40 to 105 C VCC IO 2.2 Tj Junction temperature 150 C Tstg Storage temperature - 55 to 150 C Thermal data Table 3. Thermal data Symbol Rth j-case Parameter Thermal resistance junction to case max. Value Unit 1 C/W 2.3 Electrical characteristics Table 4. Electrical characteristics VS = 14.4 V; f = 1 kHz; Rg = 600 ; RL = 4 ; Tamb = 25 C; Refer to the test and application diagram, unless otherwise specified. Symbol Parameter Test condition Quiescent current RL = VOS Output offset voltage Play Mode VOS During mute on/off output offset voltage Iq1 Gv Voltage gain Gv Channel gain unbalance Po Po max 6/14 Output power Max.output power (1) Min. Typ. Max. Unit 190 350 mA 80 mV 80 mV 27 dB 1 dB 25 26 THD = 10%; VS = 13.2V 22 24 W THD = 0.8%; VS = 13.2V 16.5 18 W THD = 10%; VS = 14.4V 26 28 W VS = 14.4V 43 45 W TDA7386 Table 4. Symbol Electrical specifications Electrical characteristics (continued) VS = 14.4 V; f = 1 kHz; Rg = 600 ; RL = 4 ; Tamb = 25 C; Refer to the test and application diagram, unless otherwise specified. Parameter Test condition Min. Po = 4W Typ. Max. Unit 0.04 0.15 % 50 70 V 70 100 V THD Distortion eNo Output noise SVR Supply voltage rejection f = 100 Hz; Vr = 1Vrms 50 75 dB fch High cut-off frequency Po = 0.5 W 80 200 KHz Ri Input impedance 70 100 K CT Cross talk ISB Standby current consumption VSt-by = 1.5 50 A VSt-by = 0 V 20 A Ipin4 Standby pin current VSt-by = 1.5 to 3.5 V 1 A VSB out Standby out threshold voltage (Amp: on) VSB IN Standby in threshold voltage (Amp: off) "A" Weighted Bw = 20 Hz to 20 kHz f = 1 kHz; Po = 4 W 60 f = 10 kHz; Po = 4W dB dB 3.5 V 1.5 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 = 4 (Amp: play); Att < 0.1dB; PO = 0.5 Ipin22 Muting pin current AM 70 60 90 V dB V 1.5 V 7.6 6.5 8.5 V V VMUTE = 1.5V (Source current) 5 11 20 A VMUTE = 3.5V -5 - 20 A 1. Saturated square wave output. Figure 3. Standard test and application circuit C8 0.1F C7 2200F Vcc1-2 Vcc3-4 6 R1 20 9 4 ST-BY 10K R2 C9 1F MUTE 8 47K C10 1F 5 C1 3 0.1F IN2 17 12 C2 0.1F 18 IN3 OUT3 19 15 C3 0.1F 21 14 IN4 C4 0.1F OUT2 2 11 IN1 OUT1 7 22 S-GND 24 16 C5 0.47F OUT4 23 13 10 SVR C6 47F 25 N.C. 1 TAB D95AU335C 7/14 Electrical specifications 2.4 PCB and component layout Referred to the circuit of Figure 3. 8/14 Figure 4. Components and top copper layer Figure 5. Bottom copper layer TDA7386 TDA7386 Electrical specifications 2.5 Electrical characteristics curves Figure 6. 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. frequency Figure 13. Crosstalk vs. frequency Figure 14. Output noise vs. source resistance Figure 15. Power dissipation and efficiency vs. output power 10/14 TDA7386 3 Application hints 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 Standby and muting Standby 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 70 K, 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 4 TDA7386 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 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 1.139 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 Flexiwatt25 (vertical) 5 (T p.) 3 (Typ.) 20 (Typ.) 45 (Typ.) (1): dam-bar protusion not included (2): molding protusion included V C B V H H1 V3 A H2 O H3 R3 L4 R4 V1 R2 L2 N L3 R L L1 V1 V2 R2 D R1 L5 Pin 1 R1 R1 E G G1 F FLEX25ME M M1 7034862 12/14 TDA7386 5 Revision history Revision history Table 5. Document revision history Date Revision Changes 24-Nov-2001 1 Initial release. 20-Dec-2007 2 Document reformatted. Modified the Features on page 1. Modified the Figure 1 and 2. Updated the Table 4: Electrical characteristics. 29-Oct-2008 3 Updated the Table 3: Thermal data on page 6. 19-Nov-2008 4 Update the Table 2: Absolute maximum ratings on page 6. 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. 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