General description
The TDA8945S 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 TDA8945S comes in a 9-lead single in-line (SIL) power package. The TDA8945S 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.
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.
Applications
Mains fed applications (e.g. TV sound)
PC audio
Portable audio.
Circuit Diagram
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| 15 W mono Bridge Tied Load (BTL) audio amplifier cicuit diagram |
Layout and pcb:
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| 15 W mono Bridge Tied Load (BTL) audio amplifier pcb layout |
