2x30W Stereo / 1x60W Mono Class-D Audio Amplifier With Power Limit
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 8Ω at 24 V BTL Mode: 30W/CH into 4Ω at 18 V PBTL Mode: 60W/CH into 4Ω at 24 V PBTL Mode: 45W/CH into 4Ω at 18 V PBTL Mode: 60W/CH into 2Ω at 18 V
Loudspeaker performance BTL Mode: 30W/CH into 8Ω <1% THD+N@24V BTL Mode: 30W/CH into 4Ω <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
Filter-Free operation
Over temperature protection with auto recovery
Superior EMC performance 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 supply voltage. It can deliver 30W/CH output power into 4Ω or 8Ω loudspeaker within 1% THD+N at 24V supply voltage. AD52090 provides parallel BTL (Mono) application, and it can deliver 60W into 4Ω 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.