TDA8950: 2 x 150 W class-D power amplifier

Overview

The TDA8950 is a high-efficiency Class D audio power amplifier. The typical output power is 2 x 150 W with a speaker load impedance of 4 Ω.

The TDA8950 is available in both HSOP24 and DBS23P power packages. The amplifier operates over a wide supply voltage range from +-12.5 V to +-40 V and features low quiescent current consumption.

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Features

Pin compatible with TDA8920B for both HSOP24 and DBS23P packages
Symmetrical operating supply voltage range from +-12.5 V to +-40 V
Stereo full differential inputs, can be used as stereo Single-Ended (SE) or mono Bridge-Tied Load (BTL) amplifier
High output power in typical applications:
- SE 2 x 150 W, R_L = 4 Ω (V_P = +-37 V)
- SE 2 x 170 W, R_L = 4 Ω (V_P = +-39 V)
- SE 2 x 100 W, R_L = 6 Ω (V_P = +-37 V)
- BTL 1 x 300 W, R_L = 8 Ω (V_P = +-37 V)
Low noise
Smooth pop noise-free start-up and switch off
Zero dead time switching
Fixed frequency
Internal or external clock
High efficiency
Low quiescent current
Advanced protection strategy: voltage protection and output current limiting
Thermal FoldBack (TFB)
Fixed gain of 30 dB in SE and 36 dB in BTL applications
Fully short-circuit proof across load
BD modulation in BTL configuration

Target Applications

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

MoreLess

Features

Pin compatible with TDA8920B for both HSOP24 and DBS23P packages
Symmetrical operating supply voltage range from +-12.5 V to +-40 V
Stereo full differential inputs, can be used as stereo Single-Ended (SE) or mono Bridge-Tied Load (BTL) amplifier
High output power in typical applications:
- SE 2 x 150 W, R_L = 4 Ω (V_P = +-37 V)
- SE 2 x 170 W, R_L = 4 Ω (V_P = +-39 V)
- SE 2 x 100 W, R_L = 6 Ω (V_P = +-37 V)
- BTL 1 x 300 W, R_L = 8 Ω (V_P = +-37 V)
Low noise
Smooth pop noise-free start-up and switch off
Zero dead time switching
Fixed frequency
Internal or external clock
High efficiency
Low quiescent current
Advanced protection strategy: voltage protection and output current limiting
Thermal FoldBack (TFB)
Fixed gain of 30 dB in SE and 36 dB in BTL applications
Fully short-circuit proof across load
BD modulation in BTL configuration

Target Applications

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

Data Sheets

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