1.
General description
The TDA8920B is a high efficiency class-D audio power amplifier with very low
dissipation. The typical output power is 2
×
100 W.
The device is available in the HSOP24 power package and in the DBS23P through-hole
power package. The amplifier operates over a wide supply voltage range from
±
12.5 V to
±
30 V (
±
32 V non operating) and consumes a very low quiescent current.
2.
Features
■
Zero dead time switching
■
Advanced current protection: output current limiting
■
Smooth start-up: no pop noise due to DC offset
■
High efficiency
■
Operating supply voltage from
±
12.5 V to
±
30 V
■
Low quiescent current
■
Usable as a stereo Single-Ended (SE) amplifier or as a mono amplifier in Bridge-Tied
Load (BTL)
■
Fixed gain of 30 dB in Single-Ended (SE) and 36 dB in Bridge-Tied Load (BTL)
■
High output power
■
High supply voltage ripple rejection
■
Internal switching frequency can be overruled by an external clock
■
Full short-circuit proof across load and to supply lines
■
Thermally protected
3.
Applications
■
Television sets
■
Home-sound sets
■
Multimedia systems
■
All mains fed audio systems
■
Car audio (boosters)
TDA8920B
2
×
100 W class-D power amplifier
Rev. 02 — 07 November 2005
Product data sheet
