TDA8944J Datasheet, PDF (1/21 Pages) NXP Semiconductors – 2 x 7 W stereo Bridge Tied Load BTL audio amplifier

TDA8944J
2 x 7 W stereo Bridge Tied Load (BTL) audio amplifier
Rev. 02 — 14 February 2000
Product specification
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
c
c
s Few external components
s Fixed gain
s Standby and mute mode
s No on/off switching plops
s Low standby current
s High supply voltage ripple rejection
s Outputs short-circuit protected to ground, supply and across the load
s Thermally protected
s Printed-circuit board compatible.
3. Applications
s Mains fed applications (e.g. TV sound)
s PC audio
s Portable audio.
4. Quick reference data
Table 1: Quick reference data
Symbol Parameter
V_CC
supply voltage
I_q
quiescent supply current
I_stb
standby supply current
Conditions
V_CC = 12 V; R_L = ∞
Min Typ Max Unit
6
12 18 V
-
24 36 mA
-
-
10 µA