TDA7386

TDA7386

4 x 45 W quad bridge car radio amplifier

Features

High output power capability:

4 x 45W/4

Ω max.

4 x 28W/4

Ω @ 14.4V, 1KHz, 10%

4 x 24W/4

Ω @ 13.2V, 1KHz, 10%

Low distortion

Low output noise

Standby function

Mute function

Automute at min. supply voltage detection

Low external component count:

– Internally fixed gain (26dB)

– No external compensation

– No bootstrap capacitors

Flexiwatt25

Load dump voltage

Fortuitous open GND

Reversed battery

ESD

Protections

Output short circuit to GND, to V

S

, across the load

Very inductive loads

Overrating chip temperature with soft thermal limiter

Table 1.

Device summary

Order code

TDA7386

Package

Flexiwatt25

Description

The TDA7386 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 TDA7386 allows a rail to rail output voltage swing with no need of bootstrap capacitors. The extremely reduced boundary components count allows very compact sets.

Packing

Tube

November 2008 Rev 4 1/14

www.st.com

1

4

5

1

2

Contents

Contents

3

TDA7386

Block and pin connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2

Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4

PCB and component layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.5

Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1

SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2

Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3

Standby and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2/14

TDA7386

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3/14

List of figures

List of figures

TDA7386

Figure 1.

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 2.

Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 3.

Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 4.

Components and top copper layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 5.

Bottom copper layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 6.

Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 7.

Quiescent output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 8.

Output power vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 9.

Max. output power vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 10.

Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 11.

Distortion vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 12.

Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 13.

Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 14.

Output noise vs. source resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 15.

Power dissipation and efficiency vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 16.

Flexiwatt25 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4/14

TDA7386

1

Block and pin connection diagrams

Block and pin connection diagrams

Figure 1.

Block diagram

Vcc1

ST-BY

MUTE

IN1

0.1µF

IN2

0.1µF

IN3

0.1µF

IN4

0.1µF

AC-GND

0.47µF

SVR

47µF

Vcc2

TAB S-GND

2200µF

N.C.

OUT1+

OUT1-

PW-GND

OUT2+

OUT2-

PW-GND

OUT3+

OUT3-

PW-GND

OUT4+

OUT4-

PW-GND

100nF

D99AU1018A

Figure 2.

Pin connection (top view)

1 25

D94AU159B

5/14

Electrical specifications TDA7386

2.1 Absolute maximum ratings

Table 2.

Symbol

V

CC

V

CC (DC)

V

CC (pk)

I

O

P tot

T amb

T j

T stg

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 = 100

μs)

Power dissipation, (T case

= 70°C)

Operating temperature range

Junction temperature

Storage temperature

Value

18

28

50

4.5

5.5

80

– 40 to 105

150

– 55 to 150

Table 3.

Symbol

Thermal data

Parameter

R th j-case

Thermal resistance junction to case max.

Value

1

Unit

°C/W

Table 4.

Symbol

I q1

V

OS

ΔV

OS

G v

ΔG v

P o

P o max

Electrical characteristics

V

S

= 14.4 V; f = 1 kHz; R g

= 600

Ω; R

L

= 4

Ω; T amb

= 25 °C; Refer to the test and application diagram, unless otherwise specified.

Parameter Min.

Typ.

Max.

Unit

R

L

=

Play Mode

Test condition

190 350

±80 mA mV

Quiescent current

Output offset voltage

During mute on/off output offset voltage

Voltage gain

Channel gain unbalance

25 26

±80

27

±1 mV

Output power

Max.output power

(1)

THD = 10%; V

S

= 13.2V

THD = 0.8%; V

S

= 13.2V

THD = 10%; V

S

= 14.4V

V

S

= 14.4V

22

16.5

26

43

24

18

28

45 dB dB

W

W

W

W

6/14

Unit

V

V

V

A

A

W

°C

°C

°C

TDA7386 Electrical specifications

Table 4.

Electrical characteristics (continued)

V

S

= 14.4 V; f = 1 kHz; R g

= 600

Ω; R

L

= 4

Ω; T amb

= 25 °C; Refer to the test and application diagram, unless otherwise specified.

Parameter Test condition Min.

Typ.

Max.

Unit Symbol

THD e

No

SVR f ch

R i

Distortion

Output noise

Supply voltage rejection

High cut-off frequency

Input impedance

P o

= 4W

"A" Weighted

Bw = 20 Hz to 20 kHz f = 100 Hz; V

P o

= 0.5 W r

= 1V rms

C

T

Cross talk f = 1 kHz; Po = 4 W f = 10 kHz; Po = 4W

V

I

I

SB pin4

SB out

Standby current consumption

V

St-by

= 1.5

V

St-by

= 0 V

V

St-by

= 1.5 to 3.5 V Standby pin current

Standby out threshold voltage

(Amp: on)

Standby in threshold voltage (Amp: off) V

SB IN

V

I

V

V

A

M

M out

M in

AM in pin22

Mute attenuation P

Oref

= 4W

Mute out threshold voltage (Amp: play)

Mute in threshold voltage

V

S

automute threshold

Muting pin current

(Amp: mute)

(Amp: mute); Att

≥ 80dB; P

Oref

(Amp: play); Att < 0.1dB; P

O

= 4

Ω

= 0.5

Ω

V

MUTE

= 1.5V (Source current)

V

MUTE

= 3.5V

1.

Saturated square wave output.

50

80

70

60

3.5

80

3.5

5

-5

0.04

50

70

75

200

100

70

60

90

7.6

11

-

0.15

70

100

1.5

1.5

6.5

8.5

20

20

50

20

±1

KHz

K

Ω dB dB

μA

μA

μA

%

μV

μV dB

V

V dB

V

V

V

V

μA

μA

Figure 3.

Standard test and application circuit

C8

0.1

μF

C7

2200

μF

Vcc1-2

6

Vcc3-4

20

ST-BY

MUTE

R1

10K

R2

47K

C1

C9

1

μF

C10

1

μF

4

22

IN1 11

0.1

μF

IN2 12

C2 0.1

μF

IN3 15

C3 0.1

μF

IN4

C4 0.1

μF

S-GND

14

13

16

C5

0.47

μF

SVR

C6

47

μF

10 25

N.C.

21

24

23

1

TAB

5

2

3

9

8

7

17

18

19

OUT1

OUT2

OUT3

OUT4

D95AU335C

7/14

Electrical specifications

2.4 PCB and component layout

Referred to the circuit of

Figure 3

.

Figure 4.

Components and top copper layer

TDA7386

Figure 5.

Bottom copper layer

8/14

TDA7386 Electrical specifications

Figure 6.

Quiescent current vs. supply voltage Figure 7.

Quiescent output voltage vs. supply voltage

Figure 8.

Output power vs. supply voltage Figure 9.

Max. output power vs. supply voltage

Figure 10. Distortion vs. output power Figure 11. Distortion vs. frequency

9/14

Electrical specifications

Figure 12. Supply voltage rejection vs. frequency

Figure 13. Crosstalk vs. frequency

TDA7386

Figure 14. Output noise vs. source resistance Figure 15. Power dissipation and efficiency vs. output power

10/14

TDA7386 Application hints

Referred to the circuit of

Figure 3

.

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.

The TDA7386’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 (0.1

μF) is adopted, the low frequency cut-off will amount to 16 Hz.

3.3 Standby muting

Standby and muting facilities are both 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 µA normally flows out of pin 22, the maximum allowable muting-series resistance (R

2

) is 70 K

Ω, which is sufficiently high to permit a muting capacitor reasonably small (about 1µF).

If R

2

is higher than recommended, the involved risk will be that the voltage at pin 22 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 2.5V/ms.

11/14

Package information TDA7386

12/14

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 16. Flexiwatt25 mechanical data and package dimensions mm inch

DIM.

A

B

C

D

E

F (1)

G

G1

MIN.

TYP.

MAX.

MIN.

TYP.

MAX.

4.45

4.50

4.65

0.175

0.177

0.183

1.80

1.90

2.00

0.070

0.074

0.079

1.40

0.055

0.75

0.90

1.05

0.029

0.035

0.041

0.37

0.80

0.39

1.00

0.42

0.57

1.20

0.014

0.031

0.015

0.040

0.016

0.022

0.047

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

H2

17.00

12.80

0.669

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

M

M1

N

O

R

R1

R2

R3

R4

3.70

3.60

3.5

4.00

4.00

2.20

2

1.70

0.5

0.3

1.25

0.50

4.30

4.40

0.145

0.142

V

V1

V2

V3

5˚ (T p.)

3˚ (Typ.)

20˚ (Typ.)

45˚ (Typ.)

(1): dam-bar protusion not included

(2): molding protusion included

0.138

0.157

0.157

0.086

0.079

0.067

0.02

0.12

0.049

0.019

0.169

0.173

OUTLINE AND

MECHANICAL DATA

Flexiwatt25 (vertical)

V

C

B

V

H

H1

V3

H3

R3

H2

A

R4

V1

N

R

R2

L L1

V1

V2

Pin 1

G

G1

F

R2

FLEX25ME

L5

R1

D

R1

M

R1

E

M1

7034862

TDA7386 Revision history

Table 5.

Date

Document revision history

24-Nov-2001

20-Dec-2007

29-Oct-2008

19-Nov-2008

Revision

1

2

3

4

Changes

Initial release.

Document reformatted.

Modified the

Features on page 1

.

Modified the

Figure 1

and

2

.

Updated the

Table 4: Electrical characteristics

.

Updated the

Table 3: Thermal data on page 6

.

Update the

Table 2: Absolute maximum ratings on page 6

.

13/14

TDA7386

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.

© 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

14/14

Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project