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 supply voltage. It can deliver 30W/CH output power into 4W or 8W loudspeaker within 1% THD+N at 24V
AD52090 provides parallel BTL (Mono)
application, and it can deliver 60W into 4W 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. AD52090 provides superior EMC performance for filter-free application.
The output short circuit and over temperature protection include auto-recovery feature.
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 8W at 24 V
BTL Mode: 30W/CH into 4W at 18 V
PBTL Mode: 60W/CH into 4W at 24 V
PBTL Mode: 45W/CH into 4W at 18 V
PBTL Mode: 60W/CH into 2W at 18 V
BTL Mode: 30W/CH into 8W <1% THD+N@24V
BTL Mode: 30W/CH into 4W <1% THD+N@18V
>90% efficient Class-D operation eliminates need for heat sink
Four selectable, fixed gain settings
Short-Circuit protection with auto recovery option
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
Superior EMC performance
Consumer Audio Equipment