ST TBA820M User Manual

®

TBA820M

1.2W AUDIO AMPLIFIER

DESCRIPTION
The TBA820M is a monolithic integrated audio

amplifier in a 8 lead dual in-line plastic package. It
is intended for use as low frequency class B po wer
amplifier with wide range of supply voltage: 3 to
16V, in portable radios, cassette recorders and
players etc. Main features are: minimum working
supply voltage of 3V, low quiescent current, low
number of external components, good ripple rejec­tion, no cross-over distortion, low power dissipa­tion.
Output power: P

= 2W at 12V/8Ω, 1.6W at 9V/4

o

Ω

ORDERING NUMBER: TBA820M

and 1.2W at 9V/8Ω.

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

Supply voltage 16 V

V

s

I

Output peak current 1.5 A

o

P

T

stg

Pow er dissipatio n at T

tot

, TjStorage and junction temperature -40 to 150

amb

= 50°C

Minidip

1W

C

°

TEST AND APPLICATION CIRCUITS

Figure 1. Ci rcuit diagram with load con nected to the
supply voltage

September 2003

Figure 2. Cir cuit diagram w ith load connected
to ground

* Capacitor C6 must be used when high ripple
rejection is requested.

1/6

TBA820M

PIN CONNECTION

(top view)

SCHEMATIC DIAGRAM

THERMAL DATA

Symbol Parameter Value Unit

2/6

R

th-j-amb

Thermal resistance junction-ambient max 100

C/W

°