TDA7389A 4 x 45W quad bridge car radio amplifier Features High output power: - 4 x 45 W / 4 max. - 4 x 28 W / 4 @ 14.4 V, 1 kHz, 10 % Low distortion Low output noise Standby function Mute function Automute at min. supply voltage detection Low external component count: - Internally fixed gain (26dB) - No external compensation - No bootstrap capacitors Load dump voltage Clipping detector Fortuitous open GND Offset detector Output DC offset detector Diagnostic facility for: - Out to GND short - Out to VS short - Thermal shutdown Reversed battery ESD Flexiwatt27 Description Protections: Output short circuit to GND, to VS, across the load Very inductive loads Overrating chip temperature with soft thermal limiter Table 1. The TDA7389A is an AB class audio power amplifier, packaged in Flexiwatt 27 designed for high end car radio applications. Based on the fully complementary PNP/NPN configuration the TDA7389A allows a rail to rail output voltage swing with no need of bootstrap capacitors. Device summary Order code Package Packing TDA7389A Flexiwatt27 Tube October 2008 Rev 2 1/14 www.st.com 1 Contents TDA7389A Contents 1 Pin connection and block 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 Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.5 Test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 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 TDA7389A 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 TDA7389A 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. 4/14 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Quiescent output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Output power vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Maximum output power vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Distortion vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Output noise vs. source resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Power dissipation and efficiency vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ITU R-ARM frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . . 9 Test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Flexiwatt27 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 TDA7389A Pin connection and block diagrams Figure 1. Block diagram Vcc1 Vcc2 ST-BY CD MUTE OUT1+ OUT1- IN1 PW-GND OUT2+ OUT2- IN2 PW-GND OUT3+ OUT3- IN3 PW-GND OUT4+ OUT4- IN4 PW-GND AC-GND SVR TAB S-GND OFFSET DETECTOR D05AU1613 Pin connection (top view) 27 CD 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+ OUT2- P-GND2 TAB 1 TAB Figure 2. OFF.DET 1 Pin connection and block diagrams FLEX27_O 5/14 Electrical specifications TDA7389A 2 Electrical specifications 2.1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit Operating supply voltage 18 V VS (DC) DC supply voltage 28 V VS (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 Power dissipation, (Tcase = 70C) 80 W Tj Junction temperature 150 C Tstg Storage temperature - 55 to 150 C VS IO Ptot 2.2 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 = 14.4V; f = 1KHz; Rg = 600; RL = 4; Tamb = 25C; Refer to the test and application diagram (Figure 14), unless otherwise specified.) Symbol Iq1 VOS Parameter Test condition Quiescent current RL = Output offset voltage Play Mode During mute on/off output offset voltagef dVOS Gv Voltage gain Gv Channel gain unbalance Po Po max 6/14 ITU R-ARM weighted During standby on/off output see Figure 13 offset voltage Min. Typ. Max. Unit 150 350 mA 80 mV -10 10 -50 50 mV 25 26 27 dB 1 dB Output power THD = 10%; VS = 14.4V 26 28 W Max.output power(1) VS = 14.4V 41 45 W TDA7389A 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 (Figure 14), unless otherwise specified.) Symbol Parameter Test condition Min. Typ. Max. Unit 0.04 0.10 % "A" Weighted 50 70 V Bw = 20 Hz to 20 kHz 70 100 V THD Distortion Po = 4W eNo Output noise SVR Supply voltage rejection f = 100Hz; Vr = 1Vrms 50 75 dB fch High cut-off frequency Po = 0.5W 100 200 KHz Ri Input Impedance 70 100 60 75 dB CT Cross talk 60 dB ISB Standby current consumption Ipin4 f = 1 kHz; Po = 4W f = 10 kHz; Po = 4W 150 VSt-by = 1.2V 50 VSt-by = 0V 25 Standby pin current VSt-by = 1.2 to 2.6V 1 VSB out Standby Out threshold voltage (Amp: On) VSB IN Standby In threshold voltage (Amp: Off) AM 2.6 POref = 4 W 80 VM out Mute Out threshold voltage (Amp: play) 2.6 VM in Mute In threshold voltage (Amp: mute) VS automute threshold (Amp: mute); Att 80 dB; POref = 4 (Amp: play); Att < 0.1 dB; PO = 0.5 W VAM in Ipin22 Muting pin current A A V 1.2 Mute attenuation K 90 V dB V 1.2 6.5 7.6 8.5 VMUTE = 1.2 V (Source current) 5 11 20 VMUTE = 2.6 V -5 - -20 V V A Offset detector ODLK Voff VPin2_Fw27 OD leakage current Detected diff. output offset VSt-by =5 V Pin2_Fw27 voltage for Detection = True Ipin2 = 1 mA VSt-by =5V; |Voff| > 2.5 V 1.5 1 A 2 2.5 V 0.2 0.4 V 1 A 0.4 V 2 % Clipping detector CDLK Clip det high leakage current CD Off CDSAT Clip det sat voltage DC On; ICD = 1 mA CDTHD Clip det THD level Po > 16 W 0.2 1. Saturated square wave output. 7/14 Electrical specifications TDA7389A 2.4 Electrical characteristic curves Figure 3. Quiescent current vs. supply voltage Figure 4. Vo (V) Id (mA) 10 180 Vi = 0 RL = 4 9 Vin = 0 RL = 4 170 Quiescent output voltage vs. supply voltage 8 160 7 150 6 140 5 130 4 120 8 10 12 14 16 18 VS (V) Figure 5. 3 8 Output power vs. supply voltage Figure 6. 65 RL = 4 f = 1 KHz 40 11 12 14 15 16 17 55 35 50 30 45 18 AC00484 Maximum output power vs. supply voltage RL = 4 f = 1 KHz square-wave output 60 THD = 10% 13 Po (W) 70 45 10 Vs (V) Po (W) 50 9 AC00483 40 25 35 THD = 1% 20 30 25 15 20 10 15 5 10 8 9 10 11 12 13 14 15 16 Vs (V) Figure 7. 10 17 18 8 9 10 11 Distortion vs. output power Figure 8. THD (%) 12 13 14 15 16 Vs (V) AC00485 10 17 18 AC00486 Distortion vs. frequency THD (%) Vs = 14.4V RL = 4 Po = 4W Vs = 14.4V RL = 4 1 1 f = 10 KHz 0.1 0.1 f = 1 KHz 0.01 0.1 8/14 1 Po (W) 10 100 AC00487 0.01 10 10 2 103 f (Hz) 104 105 AC00488 TDA7389A Figure 9. Electrical specifications Supply voltage rejection vs. frequency Figure 10. Crosstalk vs. frequency SVR (dB) 100 SVR (dB) 100 90 90 80 80 70 70 60 60 50 Rg = 600 Vripple = 1 Vrms 40 RL = 4 Po = 4W Rg = 600 50 40 30 20 2 10 3 4 10 10 30 5 10 10 f (Hz) 102 10 3 4 10 AC00489 5 10 10 AC00490 f (Hz) Figure 11. Output noise vs. source resistance Figure 12. Power dissipation and efficiency vs. output power En (V) 180 160 140 60 120 Vs = 13.2V RL = 4 x 4 f = 1 KHz 70 Vs = 14.4V RL = 4 (%) Pdiss (W) 80 80 70 60 50 50 100 22-22K Hz lin 80 40 40 Pdiss 30 30 20 20 20 10 10 0 0 60 40 "A" wgtd 1 2 10 3 10 10 4 5 10 Rg () 0 10 2 4 6 8 10 12 Po (W) AC00491 14 16 18 20 22 0 24 AC00492 Figure 13. ITU R-ARM frequency response, weighting filter for transient pop Output attenuation (dB) 10 0 -10 -20 -30 -40 -50 10 2 10 3 10 Hz 4 10 5 10 AC00343 9/14 Electrical specifications 2.5 TDA7389A Test and application circuit Figure 14. Test and application circuit OFFSET DETECTOR OUT C8 0.1F C7 2200F R4 V Vcc1-2 Vcc3-4 7 R1 ST-BY 47K 2 21 10 5 10K R2 C9 1F MUTE 9 23 47K C10 1F 6 C1 IN1 3 12 18 13 19 C2 0.1F IN3 OUT3 20 16 C3 0.1F 22 25 15 IN4 C4 0.1F OUT2 4 0.1F IN2 OUT1 8 S-GND 14 17 C5 0.47F OUT4 24 11 C6 47F 26 SVR 1, 27 CD TAB D05AU1614A R3 V 47K CD OUT 10/14 TDA7389A 3 Application hints Application hints Ref. to the circuit of Figure 14. 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 22F, 47F can be used to optimize pop performances. 3.2 Input stage The TDA7389A'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. The input capacitors should be 1/4 of the capacitor connected to AC-GND pin for optimum pop performances. 3.3 Standby and muting Standby and muting facilities are both 3.3 V 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 10A normally flows out of pin 23, 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 23 may rise to above the 1.2 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 TDA7389A 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 15. Flexiwatt27 mechanical data and package dimensions 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 25.75 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 26.00 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 26.25 29.30 0.029 0.014 0.031 1.014 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 1.023 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 1.033 1.153 0.904 0.762 0.626 0.313 0.169 0.173 5 (Typ.) 3 (Typ.) 20 (Typ.) 45 (Typ.) Flexiwatt27 (vertical) (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 FLEX27ME M M1 7139011 12/14 TDA7389A 5 Revision history Revision history Table 5. Document revision history Date Revision Changes 14-Nov-2007 1 Initial release. 20-Oct-2008 2 Updated the Table 3: Thermal data on page 6. 13/14 TDA7389A 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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