General description

The TDF8590TH is a high-efficiency class-D audio power amplifier with low power dissipation for application in car audio systems. The typical output power is 2 × 80 W into 4 Ω.

The TDF8590TH is available in an HSOP24 power package with a small internal heat sink. Depending on the supply voltage and load conditions, a small or even no external heat sink is required. The amplifier operates over a wide supply voltage range from ±14 V to ±29 V and consumes a low quiescent current.

Features

■ Zero dead time switching

■ Advanced output current protection

■ No DC offset induced pop noise at mode transitions

■ High efficiency

■ Supply voltage from ±14 V to ±29 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 26 dB in SE and 32 dB in BTL

■ High BTL output power: 160 W into 8 Ω, 120 W into 4 Ω

■ Suitable for speakers in the range of 2 Ω to 8 Ω

■ High supply voltage ripple rejection

■ Internal oscillator or synchronized to an external clock

■ Full short-circuit proof outputs across load and to supply lines

■ Thermal foldback and thermal protection