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| TDA7391PD 32 W bridge car radio amplifier Features High power capability: - 40 W/3.2 EIAJ - 32 W/3.2 @ VS = 14.4 V, f = 1 kHz, d = 10 % - 26 W/4 @ VS = 14.4 V, f = 1 kHz, d = 10 % Differential inputs (either single ended or differential input signal are accepted) Minimum external component count: - No bootstrap capacitors - No Boucherot cells - Internally fixed gain (30 dB) - No SVR capacitor Stand-by function (CMOS compatible) Programmable turn-on/off delay No audible pop during mute and stand-by operations The TDA7391PD is a bridge class AB audio power amplifier specially intended for car radio high power applications. The high power capability together with the possibility to operate either in differential input mode or single ended input mode makes it suitable for boosters and high end car radio equipment. The exclusive fully complementary output stage and the internal fixed gain configuration drop the external component count. The on board clipping detector allows easy implementation of gain compression systems. PowerSO-20 Description Protections Short circuit (to GND, to VS, across the load) Very inductive loads Chip over temperature Load dump Open GND ESD Device summary Order code TDA7391PD TDA7391PD13TR Table 1. Package PowerSO-20 PowerSO-20 Packing Tube Tape and reel July 2008 Rev 2 1/11 www.st.com 11 Contents TDA7391PD Contents 1 2 3 Test and application circuit, block diagram . . . . . . . . . . . . . . . . . . . . . . 3 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 3.2 3.3 3.4 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2/11 TDA7391PD Test and application circuit, block diagram 1 Test and application circuit, block diagram Figure 1. Test and application circuit +VS C2 0.22F IN+ C1 0.22F INVS SW1 ST-BY 14 15 5 16 2 C5 100nF OUT+ C4 1000F TDA7391PD 4 12 9 C3 33F 19 OUT- Vref R1 4.7K TO C 17 8 1,10,11,20 R2 56K GND CD D98AU871 Figure 2. Block diagram VCC1 5 VCC2 16 + STANDBY THRESHOLD IN14 REFERENCES SHORT CIRCUIT DUMP & THERMAL PROTECTION 19 POWER AMP COMMON MODE + VCC/2 OUT- ICM LTS V=f (Tj) LTS DISABLE 17 CD IN+ 15 gm + - POWER AMP 2 OUT+ THD DETECT VS + MUTE THRESHOLD 9 MUTE PROGRAMMABLE CURRENT CIRCUIT 8 SYNC 12 S-GND 4 STANDBY 1,10,11,20 P-GND D98AU872 3/11 Pins description TDA7391PD 2 Pins description Figure 3. Pins connection (top view) P-GND OUT+ N.C. ST-BY VCC N.C. N.C. SYNC MUTE P-GND 1 2 3 4 5 6 7 8 9 10 D98AU873 20 19 18 17 16 15 14 13 12 11 P-GND OUTN.C. CD VCC IN+ INN.C. S-GND P-GND Table 2. Pin Pins function Function Description The input stage is a high impedance type also capable of operation in single ended mode with one input capacitively coupled to the signal GND. The impedance seen by the inverting and non inverting input pins must be matched. Supply voltage. The TDA7391PD is equipped with a diagnostic circuitry able to detect the clipping in the Output Signal (distortion = 10%). The CD pin (open collector) gives out low level signal during clipping. 14, 15 INPUTS 5, 16 17 +V S CD 2, 19 The output stage is a bridge type able to drive loads as low as 3.2. It consists of two class AB fully complementary PNP/NPN stages fully protected. OUTPUTS A rail to rail output voltage swing is achieved without need of bootstrap capacitors. No external compensation is necessary. GND S-GND Power Ground. Signal ground. 1, 10, 11, 20 12 4 The device features a ST-BY function which shuts down all the internal bias supplies when the ST-BY pin is low. In ST-BY mode the amplifier sinks a small STAND-BY current (in the range of few A). When the ST-BY pin is high the IC becomes fully operational. A resistor (R2) has to be connect between pin 8 and GND in order to program the current that flows in the C3 capacitor (pin 9). The values of C3 and R2 determine the time required to bias the amplifier. The pin will have a capacitor (C3) tied to GND to set the MUTE/STAND-BY time. An automatic Mute during turn on/off is provided to prevent noisy transients. 8 SYNC 9 MUTE 4/11 TDA7391PD Electrical specifications 3 3.1 Electrical specifications Absolute maximum ratings Table 3. Symbol VS VOP VPEAK IO Ptot Tstg, Tj DC supply voltage Operating supply voltage Peak supply voltage (t = 50 ms) Output peak current repetitive (f > 10 Hz) Output peak current non repetitive Power dissipation (Tcase = 85 C) Storage and junction temperature Absolute maximum ratings Parameter Value 28 18 50 4.5 6 32 -40 to 150 Unit V V V A A W C 3.2 Thermal data Table 4. Symbol Rth j-case Thermal data Parameter Thermal resistance junction to case Max. Value 2 Unit C/W 3.3 Table 5. Symbol VS Iq VOS ISB ISBin VSBon VSBoff ATTST-BY IM in AM Electrical characteristics Electrical characteristics (VS = 14.4 V; RL = 4 , f = 1 kHz, Tamb = 25 C, unless otherwise specified) Parameter Supply voltage range Total quiescent current Output offset voltage St-by current St-by input Bias current St-by on threshold voltage St-by off threshold voltage St-by attenuation Mute input bias current Mute attenuation (VMUTE = 5 V) 90 3.5 90 10 VST-BY = 1.5 V VST-BY = 5 V Test condition Min. 8 60 Typ. Max. 18 150 120 100 10 1.5 Unit V mA mV A A V V dB A dB 5/11 Electrical specifications Table 5. Symbol TDA7391PD Electrical characteristics (continued) (VS = 14.4 V; RL = 4 , f = 1 kHz, Tamb = 25 C, unless otherwise specified) Parameter Test condition d = 10 % Min. 20 Typ. 26 21 32 40 0.06 Max. Unit W W W W % % 30.5 dB KHz 60 55 4 65 60 10 160 K K mV dB dB % C PO Output power d=1% d = 10 %; RL = 3.2 PO EIAJ d GV fH RIN EIN CMRR SVR CDL Tsd EIAJ output power (*) Distortion VS = 13.7 V PO = 0.1 to 15 W Voltage gain High frequency rolloff Input Impedance Single Ended Input noise voltage Input common mode rejection Supply Voltage Rejection Clipping Detection Level Absolute Thermal Shutdown Junction Temperature Rg = 0 ; f = 22 Hz to 22 kHz f = 1 kHz; VIN = 1 Vrms Rg = 0 ; Vr = 1 Vrms 30 PO = 1 W; -3 dB Differential 29.5 75 36 0.03 30 3.4 Figure 4. Electrical characteristics curves Quiescent current vs. supply voltage Figure 5. EIAJ power vs. supply voltage 6/11 TDA7391PD Electrical specifications Figure 6. Output power vs. supply voltage (@RL = 4) Figure 7. Distortion vs. frequency (@ RL = 4) Figure 8. Output power vs. supply voltage (@RL = 3.2) Figure 9. Distortion vs. frequency (@ RL = 3.2) Figure 10. Supply voltage rejection vs. frequency Figure 11. Common mode rejection vs. frequency 7/11 Electrical specifications TDA7391PD Figure 12. Total power dissipation and effic. vs. output power (@RL = 4) Figure 13. Power bandwidth 8/11 TDA7391PD Package information 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 14. PowerSO-20 mechanical data and package dimensions DIM. A a1 a2 a3 b c D (1) D1 (2) E e e3 E1 (1) E2 E3 G H h L N S T 10 0.8 5.8 0 15.5 10.9 0 0.4 0.23 15.8 9.4 13.9 1.27 11.43 11.1 2.9 6.2 0.1 15.9 1.1 1.1 0.031 8(typ.) 8(max. ) 0.394 0.228 0.000 0.610 0.429 0.1 mm MIN. TYP. MAX. 3.6 0.3 3.3 0.1 0.53 0.32 16 9.8 14.5 0.000 0.016 0.009 0.622 0.370 0.547 0.050 0.450 0.437 0.114 0.244 0.004 0.626 0.043 0.043 JEDEC MO-166 0.004 MIN. inch TYP. MAX. 0.142 0.012 0.130 0.004 0.021 0.013 0.630 0.386 0.570 Weight: 1.9gr OUTLINE AND MECHANICAL DATA (1) "D and E1" do not include mold flash or protusions. - Mold flash or protusions shall not exceed 0.15mm (0.006") - Critical dimensions: "E", "G" and "a3". (2) For subcontractors, the limit is the one quoted in jedec MO-166 PowerSO-20 N N a2 b e A R c DETAIL B a1 E DETAIL A DETAIL A e3 H lead D a3 DETAIL B 20 11 Gage Plane 0.35 slug -C- S E2 T E1 BOTTOM VIEW L SEATING PLANE G C (COPLANARITY) E3 1 1 0 h x 45 PSO20MEC D1 0056635 I 9/11 Revision history TDA7391PD 5 Revision history Table 6. Date 10-Oct-1998 Document revision history Revision 1 Initial release. Document reformatted. Document status promoted from product preview to datasheet. Added Table 1: Device summary. Added ECOPACK description in Section 4: Package information. Changes 02-Jul-2008 2 10/11 TDA7391PD 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. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER'S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. (c) 2008 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 of America www.st.com 11/11 |
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