ST TDA7388A handbook
Contents
1. 5 Figure 3 Quiescent current vs supply voltage 8 Figure 4 Output power vs supply voltage 4 Ohm 8 Figure 5 Distortion vs output power 1 RR uh 8 Figure 6 Distortion vs frequency WAUWAWA m mh 8 Figure 7 Supply voltage rejection vs freguency 8 Figure 8 Crosstalk vs frequency 8 Figure 9 Output noise vs source resistance 9 Figure 10 Power dissipation amp efficiency vs output POWer 9 Figure 11 ITU R ARM frequency response weighting filter for transient pop 9 Figure 12 Flexiwatt27 mechanical data and package dimensions 11 4 13 Doc ID 14257 Rev 3 ky TDA7388A Pin connection and test application diagrams q Pin connection and test application diagrams Figure 1 Pin connections top view pl TAB OFFDET T srev Veco TT P GND1 SRU NE Na amp GND INA Ins TT AC CGND PGND3 MuUTE PGND4 dc TAB TT C8 C7 ae 0 1uF T 2200uF Vcc1 2 O MUTE o INA IN2 IN3 IN4 as m 5 8 2325233235 5327528 d o o o o2. Typ v3 45 Typ 7139011 E GAPGPS00096 Doc ID 14257 Rev 3 11 13 Revision history TDA7388A 5 12 13 Revision history Table 5 Document revision history Date Revision Changes 06 Dec 2007 1 Initial release Wa AA 06 Jul 2012 3 Updated Table 2 Absolute maximum ratings on page 6 Doc ID 14257 Rev 3 TDA7388A 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
3. ky TDA7388A 4 x 42 W quad bridge car radio amplifier Features High output power capability 4x 42W 4Q max 4x27W 40 Q 14 4 V 1 kHz 10 Yo Datasheet production data W Low distortion W Low output noise m Standby function m Mute function Flexiwatt27 m Automute at min supply voltage detection W Low external component count Internally fixed gain 26 dB No external compensation an No bootstrap capacitors Output DC offset detector m Clipping detector Reversed battery ESD m Offset detector m Diagnostic facility for Description Outto GND short Outto Vg short The TDA7388A is a new technology class AB Thermal shutdown audio power amplifier in Flexiwatt27 package designed for high end car radio applications m Protections Output short circuit to GND to Vs across Thanks to the fully complementary PNP NPN l the load output configuration the TDA7388A allows a rail to Very inductive loads rail output voltage swing with no need of bootstrap y capacitors The extremely reduced components Overrating chip temperature with soft count allows very compact sets thermal limiter Load dump voltage The TDA7388A is also equipped with Clipping detector and Offset detector features Fortuitous open GND Table 1 Device summary Order code Package Packing TDA7388A Flexiwatt27 Tube July 2012 Doc ID 14257 Rev 3 1 13 This is information on a p
4. GAPGPS01770 Figure 2 Standard test and application circuit OFFSET DETECTOR OUT1 OUT2 OUT3 OUT4 GAPGPS01771 Doc ID 14257 Rev 3 5 13 Electrical specifications TDA7388A 2 Electrical specifications 2 1 Absolute maximum ratings Table 2 Absolute maximum ratings Symbol Parameter Value Unit Vs Operating supply voltage 18 V Vs DC DC supply voltage 28 V Vs pk Peak supply voltage t 50 ms 50 V Output peak current lo Repetitive duty cycle 10 96 at f 10 Hz 4 5 A Non repetitive t 100 us 5 5 A Piot Power dissipation Tease 70 C 80 Tj Junction temperature 150 C Tstg Storage temperature 55 to 150 C Tamb Operative temperature range 40 to 105 C 2 2 Thermal data Table 3 Thermal data Symbol Parameter Value Unit Rih j case Thermal resistance junction to case max 1 C W 2 3 Electrical characteristics Vs 14 4 V f 1 kHz Rg 600 9 R 4 Q Tamb 25 C Refer to the test and application diagram Figure 2 unless otherwise specified Table 4 Electrical characteristics Symbol Parameter Test condition Min Typ Max Unit lat Quiescent current RL 100 190 350 mA Vos Output offset voltage Play mode 100 mV During mute ON OFF output 10 E 410 mV dV offset voltage ITU R ARM weighted S During St By ON OFF see Figure 11 50 50 mv output offset voltage Gy Voltage gain 25 26
5. 27 dB AGy Channel gain unbalance 1 dB Po Output power THD 10 Vg 14 4 V 25 27 W 6 13 Doc ID 14257 Rev 3 ky TDA7388A Electrical specifications Table 4 Electrical characteristics continued Symbol Parameter Test condition Min Typ Max Unit Pomax Max output power Vs 14 4 V 39 42 W THD Distortion Po 4W 0 04 0 10 A Weighted 50 70 HV No Output noise Bw 20 Hz to 20 kHz 70 100 uV SVR Supply voltage rejection f 100 Hz V 2 1 Vims 50 65 dB foh High cut off frequency Po 0 5 W 100 200 kHz Ri Input Impedance 70 100 ko f21kHz P Z4W 60 70 dB CT Cross talk f 10kHz P 24W 60 dB Meo Voy 0V ZI E AE lpin4 Standby pin current Vst gy 1 2 to 2 6 V 2 10 HA NE ur out threshold Amp on 26 li ji V VSB IN Standby in threshold voltage Amp off 1 2 V Au Mute attenuation Poret 4 W 80 90 dB VM out Mute out threshold voltage Amp Play 2 6 VM in Mute in threshold voltage Amp Mute 1 2 V Amp Mute Att 2 80 dB Vamin Vs automute threshold tai Att 0 1 dB S y Po 0 5W lpin22 Muting pin current donnent 5 11 20 UA Offset detector Vott Detected diff output offset Vst by 25V 1 4 2 2 6 V Vorrik Vorr high leakage current OD off 10 HA Vorrsar Vorr det saturation voltage OD on lop 1 mA 300 mV Cl
6. GAPGPS01775 Figure 7 Supply voltage rejection vs Figure 8 Crosstalk vs frequency frequency SVR dB 100 SVR dB 100 90 90 80 80 70 70 60 50 60 40 50 30 40 20 10 100 1000 10000 100000 30 f Hz 10 100 1000 10000 100000 GAPGPS01776 f Hz GAPGPS01777 8 13 Doc ID 14257 Rev 3 ky TDA7388A Electrical specifications Figure 9 Output noise vs source resistance Figure 10 Power dissipation amp efficiency vs output power 22 22K Hz lin A wgtd 0 1 10 100 1000 10000 0 2 4 6 8 10 12 14 16 18 20 22 24 Rg Q GAPGPS01778 Po W GAPGPS01779 Figure 11 ITU R ARM frequency response weighting filter for transient pop 6 Output attenuation dB 10 100 1000 10000 100000 Hz GAPGPS01780 A Doc ID 14257 Rev 3 9 13 Application hints TDA7388A 3 3 1 3 2 3 3 10 13 Application hints Ref to the circuit of Figure 2 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 serv
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8. devices in different grades of ECOPACK packages depending on their level of environmental compliance ECOPACK specifications grade definitions and product status are available at www st com ECOPACK is an ST trademark Figure 12 Flexiwatt27 mechanical data and package dimensions 1 dam bar protusion not included 2 molding protusion included DIM HAN AYP TMAX MN ive WAX A 445 450 465 0 175 0 177 0 183 OUTLINE AND B 1 80 1 90 2 00 0 070 0 074 0 079 MECHANICAL DATA 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 2575 26 00 26 25 1 014 1 023 1 033 H 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 LO 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 9 15 50 15 70 15 90 0 610 0 618 0 626 13 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 00 430 0 145 0 157 0 169 M1 3 60 4 00 4 40 0 142 0 157 0 173 N 2 20 0 086 s 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 V 5 Typ A A aT 3 Typ Flexiwatt27 vertical v2 20
9. e both needs its minimum recommended value is 10 pF Input stage The TDA7388A s inputs are ground compatible and can stand very high input signals x 8 Vpk without any performances degradation If the standard value for the input capacitors 0 1 uF is adopted the low frequency cut off will amount to 16 Hz Standby and muting Standby and muting facilities are both 3 3V 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 yA normally flows out of pin 23 the maximum allowable muting series resistance Ro is 70 kQ which is sufficiently high to permit a muting capacitor reasonably small about 1 pF If Ro is higher than recommended the involved risk will be that the voltage at pin 23 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 5 V ms Doc ID 14257 Rev 3 ky TDA7388A Package information 4 Package information In order to meet environmental requirements ST offers these
10. ipping detector CD k Clip det high leakage current CD Off 10 HA CDgat Clip det sat voltage DC On lcp 1 mA 300 mV CDrTup Clip det THD level 0 2 Yo 1 Saturated sguare wave output ky Doc ID 14257 Rev 3 7 13 Electrical specifications TDA7388A 2 4 Electrical characteristic curves Figure 3 Quiescent current vs supply Figure 4 Output power vs supply voltage voltage 4 Ohm la mA 8 9 10 11 12 13 14 15 16 17 18 m GAPGPS01772 Vs V GAPGPS01773 Figure 5 Distortion vs output power Figure 6 Distortion vs frequency THD THD Vs 14 4V Vs 14 4V RL 4 RL 4Q Po 4W 1 1 f 10 kHz 0 1 0 1 1 kHz 0 01 0 01 0 1 1 10 100 10 100 1000 10000 100000 Po W Hz GAPGPS01774
11. previously supplied The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners 2012 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 Philippines Singapore Spain Sweden Switzerland United Kingdom United States of America www st com Ly Doc ID 14257 Rev 3 13 13
12. roduct in full production www st com Contents TDA7388A Contents 1 Pin connection and test application 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 3 Application hints 10 3 1 SVR mii WA ERR RACK Uwa KUWA 10 3 2 pgs AA AAA AAA AAA AAA wets 10 3 3 Standby and muting 10 4 Package information 11 5 Revision history 12 2 13 Doc ID 14257 Rev 3 ky TDA7388A List of tables List of tables Table 1 DeViCe SUMMANw AA Kaanan dee eae ea Paced Gate ee eae edd eae de vos 1 Table 2 Absolute maximum ratings llle nn 6 Table 3 Thermal data uus sa fesse ine par oi eaaa a RERO E RR Eo tte and Eon eod spon p 6 Table 4 Electrical characteristics llle e 6 Table 5 Document revision history Ly Doc ID 14257 Rev 3 3 13 List of figures TDA7388A List of figures Figure 1 Pin connections top view 5 Figure 2 Standard test and application circuit
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ST TDA7388A handbook