Philips TDA8950 - User Manual

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 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.
2. Features
n Pin compatible with TDA8920B for both HSOP24 and DBS23P packages
n Symmetrical operating supply voltage range from ±12.5 V to ±40 V
n Stereo full differential inputs, can be used as stereo Single-Ended (SE) or mono
Bridge-Tied Load (BTL) amplifier
n High output power in 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
n Smooth pop noise-free start-up and switch off
n Zero dead time switching
n Fixed frequency
n Internal or external clock
n High efficiency
n Low quiescent current
n Advanced protection strategy: voltage protection and output current limiting
n Thermal FoldBack (TFB)
n Fixed gain of 30 dB in SE and 36 dB in BTL applications
n Fully short-circuit proof across load
n BD modulation in BTL configuration
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. 02 — 11 June 2009 Product data sheet

Summary

Quick reference data

Ordering information

Block diagram

Pinning information

Functional description

Protection

Thermal protection

Details thermal protection strategy, including TFB and OTP.

OverCurrent Protection (OCP)

Explains output current limiting and short-circuit protection mechanisms.

Window Protection (WP)

Describes protection activated during start-up or after OCP shutdown.

Supply voltage protection

Details UVP, OVP, and UBP circuits and their effects.

Limiting values

Thermal characteristics

Dynamic characteristics

Stereo SE configuration characteristics

Lists dynamic characteristics for Stereo Single-Ended (SE) configuration.

Mono BTL application characteristics

Lists dynamic characteristics for Mono Bridge-Tied Load (BTL) configuration.

Application information

Heatsink requirements

Package outline

Soldering of SMD packages

Soldering of through-hole mount packages

Philips TDA8950 Specifications

General

Brand	Philips
Model	TDA8950
Category	Amplifier
Language	English