
Philips Electronics
General description
The TDA8922B is a high efficiency class-D audio power amplifier with very low dissipation. The typical output power is 2×50 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 and consumes a very low quiescent current.
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 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.
APPLICATIONs
■Television sets
■Home-sound sets
■Multimedia systems
■All mains fed audio systems
■Car audio (boosters).