Datasheet

ManualsBrandsST ManualsAmplifiers & ComparatorsAudio/Video IC, 80W, Flexiwatt

This is information on a product in full production.

September 2013 DocID14256 Rev 6 1/13

TDA7388

4 x 45 W quad bridge car radio amplifier

Datasheet - production data

Features

 High output power capability:

– 4 x 45 W / 4  max.

– 4 x 26 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

Protections:

 Output short circuit to gnd, to V

, across the

load

 Very inductive loads

 Overrating chip temperature with soft thermal

limiter

 Load dump voltage

 Fortuitous open GND

 Reversed battery

 ESD

Description

The TDA7388 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 TDA7388 allows a rail to rail

output voltage swing with no need of bootstrap

capacitors. The extremely reduced boundary

components count allows very compact sets.

'!0'03

Flexiwatt25

Table 1. Device summary

Order code Package Packing

TDA7388 Flexiwatt25 Tube

www.st.com

Downloaded from Arrow.com.

Summary of content (13 pages)

PAGE 1
TDA7388 4 x 45 W quad bridge car radio amplifier Datasheet - production data  Low external component count: – Internally fixed gain (26 dB) – No external compensation – No bootstrap capacitors Protections:  Output short circuit to gnd, to VS, across the load  Very inductive loads '!0'03  Overrating chip temperature with soft thermal limiter Flexiwatt25  Load dump voltage  Fortuitous open GND  Reversed battery  ESD Features Description  High output power capability: – 4 x 45 W / 4  ma
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Contents TDA7388 Contents 1 Pin connection and test/application diagrams . . . . . . . . . . . . . . . . . . . . 5 2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 Electrical characteristics . . . . . . . . . . . . . .
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TDA7388 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 . .
PAGE 4
List of figures TDA7388 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. 4/13 Downloaded from Arrow.com. Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Quiescent current vs. supply voltage . . . .
PAGE 5
TDA7388 1 Pin connection and test/application diagrams Pin connection and test/application diagrams Figure 1. Pin connection (top view) .# 0 '.$ -54% /54 6## /54 /54 /54 0 '.$ ). !# '.$ ). 3 '.$ ). ). 362 /54 0 '.$ 6## /54 34 "9 /54 /54 0 '.$ 4!" '!0'03 Figure 2. Standard test and application circuit # M& # M& 6CC 6CC 2 34 "9 + 2 # M& -54% + # # M& ). # M& ).
PAGE 6
Electrical specifications TDA7388 2 Electrical specifications 2.1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol Value Unit 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: Repetitive (duty cycle 10 % at f = 10 Hz) Non repetitive (t = 100 µs) 4.5 5.5 A Power dissipation, (Tcase = 70 °C) 80 W Tj Junction temperature 150 C Tstg Storage temperature – 55 to 150 C VS IO Ptot 2.
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TDA7388 2.3 Electrical specifications Electrical characteristics VS = 14.4 V; f = 1 kHz; Rg = 600 ; RL = 4 ; Tamb = 25 °C; Refer to the test and application diagram (Figure 2), unless otherwise specified. Table 4. Electrical characteristics Symbol Iq1 Parameter Test condition Min. Typ. Max.
PAGE 8
Electrical specifications 2.4 TDA7388 Electrical characteristic curves Figure 3. Quiescent current vs. supply voltage ,G P$ 3R : 9L 5/ c Figure 4. Output power vs. supply voltage (4 Ohm) 9V 9 5/ 7 I N+] 3R PD[ 7+' 7+' Figure 5. Distortion vs. output power (4 Ohm) 9 V 9 *$3*36 Figure 6. Distortion vs.
PAGE 9
TDA7388 Electrical specifications Figure 9. Output noise vs. source resistance Figure 10. Total power disipation & efficiency (4 Ohm, sine) %N 6 6S 6 2, X 7 F K(Z 9V 9 5/ 7 N +] OLQ H 0DISS 7 H $ ZJWG 3GLVV *$3*36 Figure 11. Power dissipation vs.
PAGE 10
Application hints 3 TDA7388 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 10 µF. 3.2 Input stage The TDA7388’s inputs are ground-compatible and can stand very high input signals (±8 Vpk) without any performances degradation.
PAGE 11
TDA7388 4 Package information Package information In order to meet environmental requirements, ST offers these 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 13. Flexiwatt25 mechanical data and package dimensions $)- ! " # $ % & ' ' ( ( ( ( , , , , , , - . / 2 2 2 2 2 6 6 6 6 -).
PAGE 12
Revision history 5 TDA7388 Revision history Table 5. Document revision history 12/13 Downloaded from Arrow.com. Date Revision Changes 06-Dec-2007 1 Initial release. 12-Jul-2010 2 Document status promoted from preliminary data to datasheet. 26-Apr-2012 3 Modified Features on page 1. Updated Table 4: Electrical characteristics on page 7. 20-Jun-2012 4 Updated Section 3.3: Standby and muting. 11-Mar-2013 5 Added Section 2.4: Electrical characteristic curves.
PAGE 13
TDA7388 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.