资 源 简 介
1. General descripTIon
The TDA8920B is a high efficiency class-D audio power amplifier with very low
dissipaTIon. The typical output power is 2 &TImes; 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
n Zero dead time switching
n Advanced current protection: output current limiting
n Smooth start-up: no pop noise due to DC offset
n High efficiency
n Operating supply voltage from ±12.5 V to ±30 V
n Low quiescent current
n Usable as a stereo Single-Ended (SE) amplifier or as a mono amplifier in Bridge-Tied
Load (BTL)
n Fixed gain of 30 dB in Single-Ended (SE) and 36 dB in Bridge-Tied Load (BTL)
n High output power
n High supply voltage ripple rejection
n Internal switching frequency can be overruled by an external clock
n Full short-circuit proof across load and to supply lines
n Thermally protected
3. Applications
n Television sets
n Home-sound sets
n Multimedia systems
n All mains fed audio systems
n Car audio (boosters)
