Philips TDA8944J - Manual

TDA8944J
2 x 7 W stereo Bridge Tied Load (BTL) audio amplifier
Rev. 02 — 14 February 2000 Product specification
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1. General description
The TDA8944J is a dual-channel audio power amplifier with an output power of
2
× 7 W at an 8 Ω load and a 12 V supply. The circuit contains two Bridge Tied Load
(BTL) amplifiers with an all-NPN output stage and standby/mute logic. The TDA8944J
comes in a 17-pin DIL-bent-SIL (DBS) power package. The TDA8944J 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
=
∞
- 24 36 mA
I
stb
standby supply current - - 10
μA