1. 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 4 Ω.
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.
2. Features
nPin compatible with TDA8920B for both HSOP24 and DBS23P packages
nSymmetrical high operating supply voltage range from ±12.5 V to ±40 V
nStereo full differential inputs, usable as stereo Single-Ended (SE) or mono Bridge-Tied
Load (BTL) amplifier
nHigh output power at typical applications:
uSE 2 ×150 W, RL=4Ω (VP = ±37 V)
uSE 2 ×170 W, RL=4Ω (VP = ±39 V)
uSE 2 ×100 W, RL=6Ω (VP = ±37 V)
uBTL 1 ×300 W, RL=8Ω (VP = ±37 V)
nLow noise in BTL due to BD-modulation
nSmooth pop noise-free start-up and switch down
nZero dead time Pulse Width Modulation (PWM) output switching
nFixed frequency
nInternal or external clock switching frequency
nHigh efficiency
nLow quiescent current
nAdvanced protection strategy: voltage protection and output current limiting
nThermal foldback
nFixed gain of 30 dB in SE and 36 dB in BTL
nFull short-circuit proof across load
3. Applications
nDVD
nMini and micro receiver
nHome Theater In A Box (HTIAB) system
nHigh power speaker system