TDA8950 Просмотр технического описания (PDF) - NXP Semiconductors.

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TDA8950

2×150 W class-D power amplifier

NXP Semiconductors. 

TDA8950

2 × 150 W class-D power amplifier

Rev. 01 — 9 September 2008

Preliminary data sheet

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

I Pin compatible with TDA8920B for both HSOP24 and DBS23P packages

I Symmetrical high operating supply voltage range from ±12.5 V to ±40 V

I Stereo full differential inputs, usable as stereo Single-Ended (SE) or mono Bridge-Tied

Load (BTL) amplifier

I High output power at typical applications:

N SE 2 × 150 W, RL = 4 Ω (VP = ±37 V)

N SE 2 × 170 W, RL = 4 Ω (VP = ±39 V)

N SE 2 × 100 W, RL = 6 Ω (VP = ±37 V)

N BTL 1 × 300 W, RL = 8 Ω (VP = ±37 V)

I Low noise in BTL due to BD-modulation

I Smooth pop noise-free start-up and switch down

I Zero dead time Pulse Width Modulation (PWM) output switching

I Fixed frequency

I Internal or external clock switching frequency

I High efficiency

I Low quiescent current

I Advanced protection strategy: voltage protection and output current limiting

I Thermal foldback

I Fixed gain of 30 dB in SE and 36 dB in BTL

I Full short-circuit proof across load

3. Applications

I DVD

I Mini and micro receiver

I Home Theater In A Box (HTIAB) system

I High power speaker system

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