TDA8954TH

General description

The TDA8950 is a high efficiency class-D audio power amplifier. The typical output power is 2 ×150 W with a speaker load impedance of 4Ω. The TDA8950 is available in the HSOP24 power package and DBS23P power package. The amplifier operates over a wide supply voltage range from ±12.5 V to ±40 V and consumes a low quiescent current.

Features

High output power in typical applications:
SE 2 × 210 W, RL = 4 Ω (VDD = 41 V; VSS = −41 V)
SE 2 × 235 W, RL = 3 Ω (VDD = 39 V; VSS = −39 V)
SE 2 × 150 W, RL = 6 Ω (VDD = 41 V; VSS = −41 V)
BTL 1 × 420 W, RL = 8 Ω (VDD = 41 V; VSS = −41 V)
Symmetrical operating supply voltage range from ±12.5 V to ±42.5 V
Stereo full differential inputs, can be used as stereo SE or mono BTL amplifier
Low noise
Smooth pop noise-free start-up and switch off
2-pin diagnostics for protection circuits
Fixed frequency internal or external clock
High efficiency ≈93 %
Zero dead time switching
Low quiescent current
Advanced protection strategy: voltage protection and output current limiting
Thermal FoldBack (TFB) with disable functionality
Fixed gain of 30 dB in SE and 36 dB in BTL applications
Fully short-circuit proof across load
BD modulation in BTL configuration
Clock protection

Applications

DVD
Home Theater In A Box (HTIAB) system
Mini and micro receiver
High-power speaker system
Subwoofers
Public Address (PA) system