Product Summary

The TDA8945SU is a single-channel audio power amplifier with an output power of 15 W at an 8 Ω load and an 18 V supply. The circuit contains a Bridge Tied Load (BTL) amplifier with an all-NPN output stage and standby/mute logic. The TDA8945SU comes in a 9-lead single in-line (SIL) power package. The TDA8945SU 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. The applications are Mains fed applications (e.g. TV sound), PC audio and Portable audio.

Parametrics

TDA8945SU absolute maximum ratings: (1)VCC supply voltage no signal: -0.3 to +25 V; operating -0.3 to +18 V; (2)VI input voltage: -0.3 to VCC + 0.3 V; (3)IORM repetitive peak output current: 2 A; (4)Tstg storage temperature non-operating: -55 to +150℃; (5)Tcase operating case temperature: -40 to +70℃; (6)Ptot total power dissipation: 14 W; (7)VCC(sc) supply voltage to guarantee short-circuit protection: 18V.

Features

TDA8945SU features: (1)Few external components; (2)Fixed gain; (3)Standby and mute mode; (4)No on/off switching plops; (5)Low standby current; (6)High supply voltage ripple rejection; (7)Outputs short-circuit protected to ground, supply and across the load; (8)Thermally protected; (9)Printed-circuit board compatible.

Diagrams

TDA8945SU block diagram

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