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 power 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: Po = 2W at 12V/8Ω, 1.6W at 9V/4Ω and 1.2W at 9V/8Ω.

ABSOLUTE MAXIMUM RATINGS

Minidip

ORDERING NUMBER: TBA820M

Symbol	Parameter	Value	Unit
Vs	Supply voltage	16	V
Io	Output peak current	1.5	A
Ptot	Power dissipation at Tamb = 50°C	1	W
Tstg, Tj	Storage and junction temperature	-40 to 150	°C

TEST AND APPLICATION CIRCUITS

Figure 1. Circuit diagram with load connected to the supply voltage

Figure 2. Circuit diagram with load connected to ground

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

September 2003

1/6

TBA820M

PIN CONNECTION (top view)

SCHEMATIC DIAGRAM

THERMAL DATA

Symbol	Parameter		Value	Unit
Rth-j-amb	Thermal resistance junction-ambient	max	100	°C/W

2/6