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 n Few external components n Fixed gain n Standby and mute mode n No on/off switching plops n Low standby current n High supply voltage ripple rejection n Outputs short-circuit protected to ground, supply and across the load n Thermally protected n Printed-circuit board compatible. 3. Applications n Mains fed applications (e.g. TV sound) n PC audio n Portable audio.