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october 2008 rev 2 1/14 1 TDA7389 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 (26 db) ? no external compensation ? no bootstrap capacitors clipping detector diagnostic facility for: ? out to gnd short ? out to v s short ? thermal shutdown protections output short circuit to gnd, to v s , across the load very inductive loads overrating chip temperature with soft thermal limiter load dump voltage fortuitous open gnd reversed battery esd description the TDA7389 is an ab class audio power amplifier, packaged in flexiwatt 25 and designed for high end car radio applications. based on a fully complementary pnp/npn configuration the TDA7389 allows a rail to rail output voltage swing with no need of bootstrap capacitors. flexiwatt 25 table 1. device summary order code package packing TDA7389 flexiwatt 25 tube www.st.com
contents TDA7389 2/14 contents 1 pin connection and block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 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 3 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
TDA7389 list of tables 3/14 list of tables table 1. device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 table 2. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 3. thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 4. electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 5. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
list of figures TDA7389 4/14 list of figures figure 1. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 3. quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 4. quiescent output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 5. output power vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 6. maximum output power vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 7. distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 8. distortion vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 9. supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 10. crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 11. output noise vs. source resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 12. power dissipation & efficiency vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 13. itu r-arm frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . . 9 figure 14. test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 figure 15. flexiwatt25 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
TDA7389 pin connection and block diagrams 5/14 1 pin connection and block diagrams figure 1. block diagram figure 2. pin connection (top view) in1 mute st-by in2 out1+ out1- out2+ out2- pw-gnd in3 in4 out3+ out3- out4+ out4- pw-gnd pw-gnd pw-gnd d99au1018a ac-gnd svr tab s-gnd vcc1 vcc2 cd d94au159mod tab p-gnd2 out2- st-by out2+ v cc out1- p-gnd1 out1+ svr in1 in2 s-gnd in4 in3 ac-gnd out3+ p-gnd3 out3- v cc out4+ mute out4- p-gnd4 cd 1 25
electrical specifications TDA7389 6/14 2 electrical specifications 2.1 absolute maximum ratings 2.2 thermal data 2.3 electrical characteristics table 2. absolute maximum ratings symbol parameter value unit v s operating supply voltage 18 v v s (dc) dc supply voltage 28 v v s (pk) peak supply voltage (t = 50 ms) 50 v i o output peak current: repetitive (duty cycle 10 % at f = 10 hz) non repetitive (t = 100 s) 4.5 5.5 a p tot power dissipation, (t case = 70 c) 80 w t j junction temperature 150 c t stg storage temperature ? 55 to 150 c table 3. thermal data symbol parameter value unit r th j-case thermal resistance juncti on to case max. 1 c/w table 4. electrical characteristics (v s = 14.4v; f = 1khz; r g = 600 ; r l = 4 ; t amb = 25c; refer to the test and application diagram ( figure 14 ), unless otherwise specified.) symbol parameter test condition min. typ. max. unit i q1 quiescent current r l = 150 350 ma v os output offset voltage play mode 80 mv dv os during mute on/off output offset voltagef itu r-arm weighted see figure 13 -10 10 mv during standby on/off output offset voltage -50 50 g v voltage gain 25 26 27 db g v channel gain unbalance 1 db p o output power thd = 10 %; v s = 14.4 v 26 28 w p o max max.output power (1) v s = 14.4 v 41 45 w
TDA7389 electrical specifications 7/14 thd distortion p o = 4w 0.04 0.10 % e no output noise "a" weighted 50 70 v bw = 20 hz to 20 khz 70 100 v svr supply voltage rejection f = 100 hz; v r = 1 v rms 50 75 db f ch high cut-off frequency p o = 0.5 w 100 200 khz r i input impedance 70 100 150 k c t cross talk f = 1 khz; p o = 4 w 60 75 db f = 10 khz; p o = 4 w 60 db i sb standby current consumption v st-by = 1.2 v 50 a v st-by = 0 v 25 i pin4 standby pin current v st-by = 1.2 to 2.6 v 1 a v sb out standby out threshold voltage (amp: on) 2.6 v v sb in standby in threshold voltage (amp: off) 1.2 v a m mute attenuation p oref = 4 w 80 90 db v m out mute out threshold voltage (amp: play) 2.6 v v m in mute in threshold voltage (amp: mute) 1.2 v v am in v s automute threshold (amp: mute); att 80 db; p oref = 4 (amp: play); att < 0.1 db; p o = 0.5 w 7.6 6.5 8.5 v i pin22 muting pin current v mute = 1.2 v (source current) 51120 a v mute = 2.6 v -5 - -20 clipping detector cd lk clip det high leakage current cd off 1 a cd sat clip det sat voltage dc on; i cd = 1m a 0.2 0.4 v cd thd clip det thd level p o > 16 w 2 % 1. saturated square wave output. table 4. electrical characteristics (continued) (v s = 14.4v; f = 1khz; r g = 600 ; r l = 4 ; t amb = 25c; refer to the test and application diagram ( figure 14 ), unless otherwise specified.) symbol parameter test condition min. typ. max. unit
electrical specifications TDA7389 8/14 2.4 electrical characteristic curves figure 3. quiescent current vs. supply voltage figure 4. quiescent output voltage vs. supply voltage figure 5. output power vs. supply voltage figure 6. maximum output power vs. supply voltage figure 7. distortion vs. output power figure 8. distortion vs. frequency 120 130 140 150 160 170 180 8 1012141618 v s (v) i d (ma) v in = 0 r l = 4 ac00483 3 4 5 6 7 8 9 10 8 9 10 11 12 13 14 15 16 17 18 v s (v) vo (v) v i = 0 r l = 4 ac00484 5 10 15 20 25 30 35 40 45 50 8 9 10 11 12 13 14 15 16 17 18 v s (v) p o (w) r l = 4 f = 1 khz thd = 10% thd = 1% ac00485 10 15 20 25 30 35 40 45 50 55 60 65 70 8 9 10 11 12 13 14 15 16 17 18 v s (v) p o (w) r l = 4 f = 1 khz square-wave output ac00486 0.01 0.1 1 10 0.1 1 10 100 p o (w) thd (%) v s = 14.4v r l = 4 f = 10 khz f = 1 khz ac00487 0.01 0.1 1 10 10 10 2 10 3 10 4 10 5 f (hz) thd (%) v s = 14.4v r l = 4 p o = 4w ac00488
TDA7389 electrical specifications 9/14 figure 9. supply voltage rejection vs. frequency figure 10. crosstalk vs. frequency figure 11. output noise vs. source resistance figure 12. power dissipation & efficiency vs. output power figure 13. itu r-arm frequency response, weighting filter for transient pop 20 30 40 50 60 70 80 90 100 10 10 2 10 3 10 4 10 5 f (hz) svr (db) ac0048 9 r g = 600 v ripple = 1 vrms 30 40 50 60 70 80 90 100 10 10 2 10 3 10 4 10 5 f (hz) svr (db) r l = 4 p o = 4w r g = 600 ac0049 0 0 20 40 60 80 100 120 140 160 180 11010 2 10 3 10 4 10 5 r g ( ) e n (v) v s = 14.4v r l = 4 22-22k hz lin "a" wgtd ac00491 0 10 20 30 40 50 60 70 80 024681012141618202224 p o (w) p diss (w) 0 10 20 30 40 50 60 70 80 v s = 13.2v r l = 4 x 4 f = 1 khz (%) p diss ac0049 2 output attenuation (db) -50 -40 -30 -20 -10 0 10 10 hz ac00343 10 2 10 3 10 4 10 5
electrical specifications TDA7389 10/14 2.5 test and application circuit figure 14. test and application circuit in1 0.1 f c9 1 f in2 c2 0.1 f out1 out2 in3 c3 0.1 f in4 c4 0.1 f out3 out4 d95au335c c5 0.47 f c6 47 f svr tab vcc1-2 vcc3-4 c8 0.1 f c7 2200 f c10 1 f st-by r1 10k r2 47k mute c1 14 15 12 11 22 4 13 s-gnd 16 10 25 1 cd 620 9 8 7 5 2 3 17 18 19 21 24 23 cd out 47k r3 v
TDA7389 application hints 11/14 3 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 TDA7389?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 3.3v cmos-compatible. if unused, a straight connection to v s of their respective pins would be admissible. conventional/low-power transistors can be empl oyed 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 (r 2 ) is 70 k , which is sufficiently high to permit a muting capacitor reasonably small (about 1f). if r 2 is higher than recommended, the involved risk will be that the voltage at pin 23 may rise to above the 1.2v threshold vo ltage and the device will conseq uently fail to turn off when the mute line is brought down. about the standby, the time constant to be assigned in order to obtain a virtually pop-free transition has to be slower than 2.5v/ms.
package information TDA7389 12/14 4 package information in order to meet environmental requirements, st (also) offers these devices in ecopack ? packages. ecopack ? 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. flexiwatt25 mechanical data and package dimensions outline and mechanical data dim. mm inch min. typ. max. min. typ. max. a 4.45 4.50 4.65 0.175 0.177 0.183 b 1.80 1.90 2.00 0.070 0.074 0.079 c 1.40 0.055 d 0.75 0.90 1.05 0.029 0.035 0.041 e 0.37 0.39 0.42 0.014 0.015 0.016 f (1) 0.57 0.022 g 0.80 1.00 1.20 0.031 0.040 0.047 g1 23.75 24.00 24.25 0.935 0.945 0.955 h (2) 28.90 29.23 29.30 1.139 1.150 1.153 h1 17.00 0.669 h2 12.80 0.503 h3 0.80 0.031 l (2) 22.07 22.47 22.87 0.869 0.884 0.904 l1 18.57 18.97 19.37 0.731 0.747 0.762 l2 (2) 15.50 15.70 15.90 0.610 0.618 0.626 l3 7.70 7.85 7.95 0.303 0.309 0.313 l4 5 0.197 l5 3.5 0.138 m 3.70 4.00 4.30 0.145 0.157 0.169 m1 3.60 4.00 4.40 0.142 0.157 0.173 n 2.20 0.086 o 2 0.079 r 1.70 0.067 r1 0.5 0.02 r2 0.3 0.12 r3 1.25 0.049 r4 0.50 0.019 v1 3? (typ.) v5? (tp.) v2 20? (typ.) v3 45? (typ.) (2): molding protusion included (1): dam-bar protusion not included flexiwatt25 (vertical) h3 r4 g v g1 l2 h1 h f m1 l flex25me v3 o l3 l4 h2 r3 n v2 r r2 r2 c b l1 m r1 l5 r1 r1 e d a pin 1 v v1 v1 7034862
TDA7389 revision history 13/14 5 revision history table 5. document revision history date revision changes 09-nov-2007 1 initial release. 20-oct-2008 2 updated the table 3: thermal data on page 6 .
TDA7389 14/14 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 he rein 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 as sumes 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. i f 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 whatsoev er 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 parti cular 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 milita ry, 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 whatsoev er, 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. ? 2008 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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