Features

 Single supply voltage

4.5V ~ 26V for loudspeaker driver

Built-in LDO output 5V for others

Supports Multiple Output Configurations

BTL Mode: 30W/CH into 8 at 24 V

BTL Mode: 30W/CH into 4at 18 V

PBTL Mode: 60W/CH into 4 at 24 V

PBTL Mode: 45W/CH into 4at 18 V

PBTL Mode: 60W/CH into 2at 18 V

Loudspeaker performance

BTL Mode: 30W/CH into 8<1% THD+N@24V

BTL Mode: 30W/CH into 4<1% THD+N@18V

>90% efficient Class-D operation eliminates need

for heat sink

 Differential inputs

 Four selectable, fixed gain settings

 Internal oscillator

 Short-Circuit protection with auto recovery option

Under-Voltage detection

 Over-Voltage protection

 Pop noise and click noise reduction

 Adjustable power limit function for speaker

protection

 Output DC detection for speaker protection

 Over temperature protection with auto recovery

Applications

 TV audio

 Boom-Box

 Powered speaker

 Monitors

 Consumer Audio Equipment

Description

The AD52090 is a high efficiency stereo class-D

audio amplifier with adjustable power limit

function.The loudspeaker driver operates from

4.5V~26V supply voltage and analog circuit

operates at 5V supplyvoltage. It can deliver 30W/CH

output power into 4or 8loudspeakerwithin 1%

THD+N at 24V supply voltage.

AD52090 provides parallel BTL (Mono)

application, and it can deliver 60W into 4

loudspeaker at 24V supply voltage. The adjustable

power limit function allows user to set a voltage rail

lower than half of 5V to limit the amount of current

through the speaker.

Output DC detection prevents speaker damage

from long-time current stress.AD52090output short

circuit and over temperature protection include

auto-recovery feature.