Philips TDA8543T-N1, TDA8543-N1 Datasheet

DATA SH EET

Product specification
File under Integrated Circuits, IC01

1997 Jun 12

INTEGRATED CIRCUITS

TDA8543

2 W BTL audio amplifier

1997 Jun 12 2

Philips Semiconductors Product specification

2 W BTL audio amplifier TDA8543

FEATURES

• Flexibility in use

• Few external components

• Low saturation voltage of output stage

• Gain can be fixed with external resistors

• Standby mode controlled by CMOS compatible levels

• Low standby current

• No switch-on/switch-off plops

• High supply voltage ripple rejection

• Protected against electrostatic discharge

• Outputs short-circuit safe to ground, V

CC

and across

the load

• Thermally protected.

GENERAL DESCRIPTION

The TDA8543(T) is a one channel audio power amplifier
for an output power of 2 W with an 8 Ω load at a 7.5 V
supply. The circuit contains a BTL amplifier with
a complementary PNP-NPN output stage and
standby/mute logic. The TDA8543T comes in a 16 pin
SO package and the TDA8543 in a 16 pin DIP package.

APPLICATIONS

• Portable consumer products

• Personal computers

• Telephony.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

CC

supply voltage 2.2 5 18 V

I

q

quiescent current VCC=5V − 812mA

I

stb

standby current −−10 µA

P

o

output power THD = 10%

R

L

=8Ω; VCC= 5 V 1 1.2 − W

R

L

=8Ω; VCC= 7.5 V − 2.2 − W

R

L

=16Ω; VCC=9V − 2.0 − W

THD total harmonic distortion P

o

= 0.5 W − 0.15 − %

SVRR supply voltage ripple rejection 50 −−dB

TYPE

NUMBER

PACKAGE

NAME DESCRIPTION VERSION

TDA8543T SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1
TDA8543 DIP16 plastic dual in-line package; 16 leads (300 mil); long body SOT38-1

1997 Jun 12 3

Philips Semiconductors Product specification

2 W BTL audio amplifier TDA8543

BLOCK DIAGRAM

Fig.1 Block diagram.

handbook, halfpage

MGK402

6

STANDBY/MUTE LOGIC

5

12

4

3

13

14

11

R

R

20 kΩ

20 kΩ

IN−
IN+

V

CC

SVR

MODE

OUT−

OUT+

GND

−

−
+

−

−
+

TDA8543

PINNING

SYMBOL PIN DESCRIPTION

n.c. 1 not connected
n.c. 2 not connected
MODE 3 operating mode select

(standby, mute, operating)

SVR 4 half supply voltage, decoupling

ripple rejection
IN+ 5 positive input
IN− 6 negative input
n.c. 7 not connected
n.c. 8 not connected
n.c. 9 not connected
n.c. 10 not connected
OUT− 11 negative loudspeaker terminal
V

CC

12 supply voltage
GND 13 ground
OUT+ 14 positive loudspeaker terminal
n.c. 15 not connected
n.c. 16 not connected

Fig.2 Pin configuration.

handbook, halfpage

TDA8543

MGK401

1
2
3
4
5
6
7
8

16
15
14
13
12
11
10

9

n.c.
n.c.

MODE

SVR

IN+
IN−
n.c.
n.c.

n.c

n.c.

OUT−

V

CC

GND

OUT+

n.c

n.c.

1997 Jun 12 4

Philips Semiconductors Product specification

2 W BTL audio amplifier TDA8543

FUNCTIONAL DESCRIPTION

The TDA8543(T) is a BTL audio power amplifier capable
of delivering an output power between 1 and 2 W,
depending on supply voltage, load resistance
and package. Using the MODE pin the device can
be switched to standby and mute condition. The device
is protected by an internal thermal shutdown protection
mechanism.
The gain can be set within a range from 6 dB to 30 dB
by external feedback resistors.

Power amplifier

The power amplifier is a Bridge Tied Load (BTL) amplifier
with a complementary PNP-NPN output stage.

The voltage loss on the positive supply line is
the saturation voltage of a PNP power transistor,
on the negative side the saturation voltage of an
NPN power transistor.

Mode select pin

The device is in standby mode (with a very low current
consumption) if the voltage at the MODE
pin is >(V

CC

− 0.5 V), or if this pin is floating. At a MODE
voltage level of less than 0.5 V the amplifier is fully
operational.
In the range between 1.5 V and V

CC

− 1.5 V the amplifier
is in mute condition. The mute condition is useful to
suppress plop noise at the output, caused by charging of
the input capacitor.

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

QUALITY SPECIFICATION

In accordance with

“SNW-FQ-611-E”

. The number of the quality specification can be found in the

“Quality Reference

Handbook”

. The handbook can be ordered using the code 9397 750 00192.

THERMAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

CC

supply voltage operating −0.3 +18 V

V

I

input voltage −0.3 VCC+ 0.3 V

I

ORM

repetitive peak output current − 1A

T

stg

storage temperature non-operating −55 +150 °C

T

amb

operating ambient temperature −40 +85 °C

V

psc

AC and DC short-circuit safe voltage − 10 V

P

tot

total power dissipation SO16 − 1.2 W

DIP16 − 2.2 W

SYMBOL PARAMETER CONDITIONS VALUE UNIT

R

th j-a

thermal resistance from junction to ambient in free air

TDA8543T (SO16) 100 K/W
TDA8543 (DIP16) 55 K/W

1997 Jun 12 5

Philips Semiconductors Product specification

2 W BTL audio amplifier TDA8543

Table 1

Note

1. At THD = 10%; BTL.

VCC (V) RL (Ω)P

o

(W)

(1)

CONTINUOUS SINE WAVE DRIVEN

P

max

(W)

T

amb(max)

(°C)

SO16 DIP16

5 8 1.2 0.7 80 112

7.5 8 2.2 1.6 − 62

7.5 16 1.4 0.9 60 100
9 16 2.0 1.3 − 78
9 25 1.3 0.9 60 100

Fig.3 Power derating curve.

(1) DIP16.
(2) SO16.

handbook, halfpage

0 40 80 160

2.5

0

2.0

MGK410

120

T

amb

(°C)

1.5

1

0.5

(1)

(2)

P

(W)

1997 Jun 12 6

Philips Semiconductors Product specification

2 W BTL audio amplifier TDA8543

DC CHARACTERISTICS

V

CC

=5V; T

amb

=25°C; RL=8Ω; V

MODE

= 0 V; G = 20 dB; measured in test circuit Fig.4; unless otherwise specified.

Notes

1. With a load connected at the outputs the quiescent current will increase, the maximum of this increase being equal
to the DC output offset voltage divided by R

L

.

2. The DC output voltage with respect to ground is approximately 0.5 × VCC.

AC CHARACTERISTICS

V

CC

=5V; T

amb

=25°C; RL=8Ω; f = 1 kHz; V

MODE

= 0 V; G = 20 dB; measured in test circuit Fig.4; unless otherwise

specified.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

CC

supply voltage operating 2.2 5 18 V

I

q

quiescent current RL= ∞; note 1 − 812mA

I

stb

standby current V

MODE=VCC

−−10 µA

V

O

DC output voltage note 2 − 2.2 − V

V

OUT+

− V

OUT−

 differential output voltage offset −−50 mV

I

IN+

, I

IN−

input bias current −−500 nA

V

MODE

input voltage mode select operating 0 − 0.5 V

mute 1.5 − V

CC

− 1.5 V

standby V

CC

− 0.5 − V

CC

V

I

MODE

input current mode select 0 < V

MODE<VCC

−−20 µA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

P

o

output power THD = 10%;

V

CC

= 5 V; RL=8Ω 1 1.2 − W

V

CC

= 7.5 V; RL=8Ω− 2.2 − W

V

CC

= 9 V; RL=16Ω− 2.0 − W

THD = 0.5%;

VCC= 5 V; RL=8Ω 0.6 0.9 − W
V

CC

= 7.5 V; RL=8Ω− 1.7 − W

V

CC

= 9 V; RL=16Ω− 1.4 − W

THD total harmonic distortion P

o

= 0.5 W − 0.15 0.3 %

G

v

closed loop voltage gain note 1 6 − 30 dB

Z

i

differential input impedance − 100 − kΩ

V

no

noise output voltage note 2 −−100 µV

SVRR supply voltage ripple rejection note 3 50 −−dB

note 4 40 −−dB

V

o

output voltage in mute condition note 5 −−200 µV