View TDA7388A_4207751.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

TDA7388A
4 x 42W quad bridge car radio amplifier
Preliminary Data
Features
High output power capability: - 4 x 42W/4 max. - 4 x 27W/4 @ 14.4V, 1KHz, 10% Low distortion Low output noise St-by function Mute function Automute at min. supply voltage detection Low external component count: - Internally fixed gain (26dB) - No external compensation - No bootstrap capacitors Clipping detector Offset detector Diagnostic facility for: - Out to GND short - Out to VS short - Thermal shutdown
Flexiwatt27

Fortuitous open gnd Output DC offset detector Reversed battery ESD

Description
The TDA7388A is a new technology class AB audio power amplifier in Flexiwatt 27 package designed for high end car radio applications. Thanks to the fully complementary PNP/NPN output configuration the TDA7388A allows a rail to rail output voltage swing with no need of bootstrap capacitors. The extremely reduced components count allows very compact sets. The TDA7388A is also equipped with Clipping detector and Offset detector features.
Protections:

Output short circuit to gnd, to VS, across the load Very inductive loads Overrating chip temperature with soft thermal limiter Load dump voltage
Table 1.
Device summary
Order code TDA7388A Package Flexiwatt27 Packing Tube
December 2007
Rev 1
1/13
www.st.com 1
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
Contents
TDA7388A
Contents
1 2 Pins connection and test/application diagrams . . . . . . . . . . . . . . . . . . . 5 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 2.2 2.3 2.4 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 3.2 3.3 SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Stand-by and Muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 5
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2/13
TDA7388A
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3/13
List of figures
TDA7388A
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. Pins connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Output power vs. supply voltage (4 Ohm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Distortion vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Output noise vs. source resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Power dissipation & efficiency vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ITU R-ARM frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . . 9 Flexiwatt27 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4/13
TDA7388A
Pins connection and test/application diagrams
1
Pins connection and test/application diagrams
Figure 1. Pins connections
1
27
TAB
OFF.DET
P-GND2
OUT2-
ST-BY
OUT2+
VCC
VCC
MUTE
OUT4-
P-GND4
OUT4+
OUT1-
P-GND1
P-GND3
OUT1+
S-GND
AC-GND
OUT3+
OUT3-
SVR
FLEX27_O
Figure 2.
Standard test and application circuit
OFFSET DETECTOR C8 0.1F C7 2200F Vcc1-2 R1 7 5 10K R2 C9 1F 23 47K C1 C10 1F 12 0.1F Vcc3-4 21 2 10 9 8 OUT1 R4 47K
ST-BY
MUTE
6 3 4 OUT2
IN1
IN2 C2 0.1F IN3 C3 0.1F IN4 C4 0.1F S-GND
13
18 19 OUT3
16
20
22 15 14 17 C5 0.47F C6 47F 11 SVR 26 CD R3 47K CD OUT 1, 27 TAB V 25 24 OUT4
D05AU1614MOD1
TAB
IN1
IN2
IN4
IN3
CD
5/13
Electrical specifications
TDA7388A
2
2.1
Electrical specifications
Absolute maximum ratings
Table 2.
Symbol VS VS (DC) VS (pk) IO Ptot Tj Tstg
Absolute maximum ratings
Parameter Operating supply voltage DC supply voltage Peak supply voltage (t = 50ms) Output peak current: Repetitive (duty cycle 10% at f = 10Hz) Non repetitive (t = 100s) Power dissipation, (Tcase = 70C) Junction temperature Storage temperature Value 18 28 50 4.5 5.5 80 150 - 55 to 150 Unit V V V A A W C C
2.2
Thermal data
Table 3.
Symbol Rth j-amb
Thermal data
Parameter Thermal resistance junction to ambient max. Value 1 Unit C/W
2.3
Table 4.
Electrical characteristics
Electrical characteristics (VS = 14.4V; f = 1KHz; Rg = 600; RL = 4;Tamb = 25C; Refer to the test and application diagram (Figure 2), unless otherwise specified.)
Parameter Quiescent current Output offset voltage RL = Play mode -10 -50 25 26 Test condition Min. 100 Typ. 190 Max. 350 100 +10 +50 27 1 THD = 10%; VS = 14.4V VS = 14.4V 25 39 27 42 Unit mA mV mV mV dB dB W W
Symbol Iq1 VOS
dVOS
During mute ON/OFF output offset voltage ITU R-ARM weighted see Figure 11 During St-By ON/OFF output offset voltage Voltage gain Channel gain unbalance Output power Max.output power(1)
Gv Gv Po Po max
6/13
TDA7388A 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 2), unless otherwise specified.)
Parameter Distortion Output noise Bw = 20Hz to 20KHz Supply voltage rejection High cut-off frequency Input Impedance f = 1KHz; Po = 4W Cross talk f = 10KHz; Po = 4W St-By current consumption St-By pin current VSt-By = 0V VSt-By = 1.2 to 2.6V 2.6 1.2 80 2.6 1.2 6.5 8.5 90 60 20 10 dB A A V V dB V V V V f = 100Hz; Vr = 1Vrms Po = 0.5W 50 100 70 60 70 65 200 100 70 100 Po = 4W "A" Weighted Test condition Min. Typ. 0.04 50 Max. 0.10 70 Unit % V V dB KHz K dB
Symbol THD eNo SVR fch Ri CT ISB Ipin4 VSB out VSB IN AM VM out VM in
St-By OUT threshold voltage (Amp: ON) St-By IN threshold voltage Mute attenuation (Amp: OFF) POref = 4W
Mute OUT threshold voltage (Amp: Play) Mute IN threshold voltage (Amp: Mute) (Amp: Mute); Att 80dB; POref = 4W (Amp: Play); Att < 0.1dB; PO = 0.5W VMUTE = 1.2V (Source current)
VAM in
VS automute threshold
7.6
Ipin22
Muting pin current
5
11
20
A
Offset detector Voff VOFF LK VOFF SAT Detected diff. output offset VOFF high leakage current VST-BY =5V OD off 300 1.4 2 2.6 10 V A mV
VOFF det saturation voltage OD on; IOD = 1mA
Clipping detector CDLK CDSAT CDTHD Clip det high leakage current CD Off Clip det sat voltage Clip det THD level DC On; ICD = 1mA 300 0.2 10 A mV %
1. Saturated square wave output.
7/13
Electrical specifications
TDA7388A
2.4
Figure 3.
Electrical characteristic curves
Quiescent current vs. supply voltage Figure 4. Output power vs. supply voltage (4 Ohm)
Id (mA) 200 190 180 170 160 150 140 8 10 12 Vs (V) 14 16 18
AC00531
Po (W) 45 40 35 30 25 20 15 10 5 8 9 10 11 12 13 Vs (V) 14 15 16 17 18
AC00532
Vin = 0 RL = 4
RL= 4 f= 1 KHz
THD = 10%
THD = 1%
Figure 5.
Distortion vs. output power
Figure 6.
Distortion vs. frequency
10
THD (%) Vs = 14.4V RL = 4
10
THD (%) Vs = 14.4V RL = 4 Po = 4W
1 f = 10 KHz 0.1 f = 1 KHz
1
0.1
0.01 0.1
1 Po (W)
10
100
AC00533
0.01 10
100
1000 f (Hz)
10000
100000
AC00534
Figure 7.
Supply voltage rejection vs. frequency
Figure 8.
Crosstalk vs. frequency
100 90 80 70 60
SVR (dB)
100 90 80 70 60
SVR (dB)
50 40 30 20 10 100 1000 f (Hz) 10000 100000
AC00535
Rg = 600 Vripple = 1 Vrms
50 40 30 10
RL = 4 Po = 4W Rg = 600
100
1000 f (Hz)
10000
100000
AC00536
8/13
TDA7388A
Electrical specifications
Figure 9.
Output noise vs. source resistance Figure 10. Power dissipation & efficiency vs. output power
80 70 60 50 22-22K Hz lin 40 Pdiss 30 "A" wgtd 20 10 0 30 20 10 0 24 Pdiss (W) Vs = 13.2V RL = 4 x 4 f = 1 KHz (%) 80 70 60 50 40
180 160 140 120 100 80 60 40 20 0 1
En (V) Vs = 14.4V RL = 4
10
100 Rg ()
1000
10000
AC00537
0
2
4
6
8
10
12 Po (W)
14
16
18
20
22
Figure 11. ITU R-ARM frequency response, weighting filter for transient pop
10 0 Output attenuation (dB)
-10 -20
-30 -40
-50 10 100 1000 Hz 10000 100000
AC00343
9/13
Application hints
TDA7388A
3
Application hints
Ref. to the circuit of Figure 2.
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 TDA7388A'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
Stand-by and Muting
Stand-by 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 10A normally flows out of pin 23, the maximum allowable muting-series resistance (R2) is 70K, 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 1.5V 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.
10/13
TDA7388A
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 12. Flexiwatt27 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 25.75 28.90 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 1.05 0.42 0.57 1.20 26.25 29.30 MIN. 0.175 0.070 0.029 0.014 0.031 1.014 1.139 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 0.041 0.016 0.022 0.047 1.033 1.153
OUTLINE AND MECHANICAL DATA
22.07 18.57 15.50 7.70
22.87 19.37 15.90 7.95
0.869 0.731 0.610 0.303
0.904 0.762 0.626 0.313
3.70 3.60
4.30 4.40
0.145 0.142
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 H3 O H2 R3 R4 V1
N
V3
A
L4
R2 R L L1
L2
L3
V1
V2
R2 L5 G G1 F
R1 R1 R1 E
FLEX27ME
D
Pin 1
M
M1
7139011
11/13
Revision history
TDA7388A
5
Revision history
Table 5.
Date 6-Dec-2007
Document revision history
Revision 1 Initial release. Changes
12/13
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 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) 2007 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
13/13

▲Up To Search▲

Price & Availability of TDA7388A

	To Download TDA7388A Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .