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
VCC supply voltage 6 12 18 V
Iqquiescent supply current VCC =12V; R
L=∞- 2436mA
Istb standby supply current - - 10 µA