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深圳市春东电子有限公司
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1. General descriptionThe 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
n Pin compatible with TDA8920B for both HSOP24 and DBS23P packages
n Symmetrical high operating supply voltage range from ±12.5 V to ±40 V
n Stereo full differential inputs, usable as stereo Single-Ended (SE) or mono Bridge-Tied
Load (BTL) amplifier
n High output power at typical applications:
u SE 2 × 150 W, R
L
=4Ω (V
P
= ±37 V)
u SE 2 × 170 W, R
L
=4Ω (V
P
= ±39 V)
u SE 2 × 100 W, R
L
=6Ω (V
P
= ±37 V)
u BTL 1 × 300 W, R
L
=8Ω (V
P
= ±37 V)
n Low noise in BTL due to BD-modulation
n Smooth pop noise-free start-up and switch down
n Zero dead time Pulse Width Modulation (PWM) output switching
n Fixed frequency
n Internal or external clock switching frequency
n High efficiency
n Low quiescent current
n Advanced protection strategy: voltage protection and output current limiting
n Thermal foldback
n Fixed gain of 30 dB in SE and 36 dB in BTL
n Full short-circuit proof across load
3. Applications
n DVD
n Mini and micro receiver
n Home Theater In A Box (HTIAB) system
n High power speaker system
TDA8950
2 × 150 W class-D power amplifier
Rev. 01 — 9 September 2008 Preliminary data sheet
