tda8510j(1).pdf

INTEGRATED CIRCUITS

DATA SHEET

TDA8510J

26 W BTL and 2

13 W SE power

Preliminary speciﬁcation

Supersedes data of 1999 Jun 14

File under Integrated Circuits, IC01

1999 Dec 14

amplifiers

Philips Semiconductors

Preliminary speciﬁcation

26 W BTL and 2

13 W SE power

TDA8510J

ampliﬁers

FEATURES

Electrostatic discharge protection

Requires very few external components

No switch-on/switch-off plop

High output power

Flexible leads

Low output offset voltage (BTL channel)

Low thermal resistance

Fixed gain

Identical inputs (inverting and non-inverting).

Diagnostic facility (distortion, short-circuit and

temperature detection)

GENERAL DESCRIPTION

Good ripple rejection

The TDA8510J is an integrated class-B output amplifier in

a 17-lead single-in-line (SIL) power package. It contains a

26 W Bridge-Tied Load (BTL) amplifier and 2 ´ 13 W

Single-Ended (SE) amplifiers.

Mode select switch (operating, mute and standby)

AC and DC short-circuit safe to ground and to V P

Low power dissipation in any short-circuit condition

The device is primarily developed for multi-media

applications and active speaker systems (stereo with

subwoofer).

Thermally protected

Reverse polarity safe

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

General

V P

supply voltage

I ORM

repetitive peak output current

I q(tot)

total quiescent current

I stb

standby current

0.1

100

BTL channel

P o

output power

R L =4

; THD = 10%

SVRR

supply voltage ripple rejection

V n(o)

noise output voltage

R s =0

Z i ï

input impedance

ïD

V OO ï

DC output offset voltage

150

Single-ended channels

P o

output power

THD = 10%

R L =4

R L =2

SVRR

supply voltage ripple rejection

V n(o)

noise output voltage

R s =0 W

m V

Z i ï

input impedance

ORDERING INFORMATION

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA8510J

DBS17P plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm)

SOT243-1

1999 Dec 14

Philips Semiconductors

Preliminary speciﬁcation

26 W BTL and 2

13 W SE power

TDA8510J

ampliﬁers

BLOCK DIAGRAM

V P1

V P2

non-inverting

input 1

mute switch

C m

TDA8510J

output 1

k W

18 k W

power stage

non-inverting

input 2

mute switch

C m

k W

output 2

18 k

power stage

V P

mode

select

switch

standby

switch

standby

reference

voltage

PROTECTIONS

thermal

short-circuit

15 k

mute

switch

diagnostic

output

supply voltage

ripple rejection

15 k

mute

reference

voltage

mute switch

C m

k W

inverting

input 3

output 3

18 k

power stage

non-inverting

input 4

mute switch

C m

output 4

k W

input

reference

voltage

18 k

power stage

GND1

GND2

MGL428

ground

(signal)

not connected

power ground (substrate)

Fig.1 Block diagram.

1999 Dec 14

Philips Semiconductors

Preliminary speciﬁcation

26 W BTL and 2

13 W SE power

TDA8510J

ampliﬁers

PINNING

SYMBOL PIN

DESCRIPTION

- INV1

non-inverting input 1

SGND

signal ground

INV1

INV2

non-inverting input 2

SGND

supply voltage ripple rejection

- INV2

V P1

supply voltage 1

OUT1

output 1

V P1

GND1

power ground 1

OUT1

OUT2

output 2

n.c.

not connected

GND1

OUT3

10 output 3

OUT2

GND2

11 power ground 2

n.c.

TDA8510J

OUT4

12 output 4

OUT3

V P2

13 supply voltage 2

GND2

MODE

14 mode select switch input

OUT4

INV3

15 inverting input 3

V P2

V DIAG

16 diagnostic output

- INV4

17 non-inverting input 4

MODE

INV3

V DIAG

- INV4

MGL427

Fig.2 Pin configuration.

1999 Dec 14

Philips Semiconductors

Preliminary speciﬁcation

26 W BTL and 2

13 W SE power

TDA8510J

ampliﬁers

FUNCTIONAL DESCRIPTION

During this short-circuit condition, pin 16 is LOW for 20 ms

and HIGH for 50

The TDA8510J contains four identical amplifiers and can

be used for two Single-Ended (SE) channels (fixed gain

20 dB) and one Bridge-Tied Load (BTL) channel (fixed

gain 26 dB). Special features of the device are:

s (see Fig.5).

The power dissipation in any short-circuit condition is very

low.

Mode select switch (pin 14)

Low standby current (<100

Low switching current (low cost supply switch)

Mute facility.

To avoid switch-on plops, it is advised to keep the amplifier

in the mute mode during

handbook, halfpage

V O

MGA705

100 ms (charging of the input

capacitors at pins 1, 3, 15 and 17). This can be achieved

by:

Microcontroller control

V P

External timing circuit (see Fig.8).

Diagnostic output (pin 16)

D YNAMIC D ISTORTION D ETECTOR (DDD)

At the onset of clipping of one or more output stages, the

dynamic distortion detector becomes active and pin 16

goes LOW. This information can be used to drive a sound

processor or DC volume control to attenuate the input

signal and thus limit the distortion. The output level of

pin 16 is independent of the number of channels that are

clipping (see Figs 3 and 4).

Fig.3 Distortion detector waveform; BTL channel.

S HORT - CIRCUIT PROTECTION

When a short-circuit occurs at one or more outputs to

ground or to the supply voltage, the output stages are

switched off until the short-circuit is removed and the

device is switched on again, with a delay of approximately

20 ms, after removal of the short-circuit. During this

short-circuit condition, pin 16 is continuously LOW.

handbook, halfpage

V O

MGA706

V 16

V P

When a short-circuit across the load of one or more

channels occurs the output stages are switched off for

approximately 20 ms. After that time it is checked during

approximately 50

s to see whether the short-circuit is still

present. Due to this duty cycle of 50

s/20 ms the average

current consumption during this short-circuit condition is

very low (approximately 40 mA).

Fig.4 Distortion detector waveform; SE channels.

1999 Dec 14

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