TDA8943SF
6 W mono Bridge Tied Load (BTL) audio amplifier
Rev. 02 — 7 April 2000
Product specification
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1.
General description
The TDA8943SF is a single-channel audio power amplifier with an output power of
6 W at an 8
Ω
load and a 12 V supply. The circuit contains a Bridge Tied Load (BTL)
amplifier with an all-NPN output stage and standby/mute logic. The TDA8943SF
comes in a 9-lead single in-line (SIL) medium power package. The TDA8943SF is
printed-circuit board (PCB) compatible with all other types in the TDA894x family.
One PCB footprint accommodates both the mono and the stereo products.
2.
Features
■
Few external components
■
Fixed gain
■
Standby and mute mode
■
No on/off switching plops
■
Low standby current
■
High supply voltage ripple rejection
■
Outputs short-circuit protected to ground, supply and across the load
■
Thermally protected
■
Printed-circuit board compatible.
3.
Applications
■
Mains fed applications (e.g. TV sound)
■
PC audio
■
Portable audio.
4.
Quick reference data
Table 1:
Quick reference data
Symbol Parameter
Conditions
Min
Typ
Max
Unit
V
CC
supply voltage
6
12
18
V
I
q
quiescent supply current
V
CC
= 12 V; R
L
=
∞
-
15
22
mA
I
stb
standby supply current
-
-
10
µ
A
