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AD52090 2x30W立体声/60W单声道D类功放IC
文章来源:永阜康科技 更新时间:2020/6/5 15:08:00
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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 4W or 8W loudspeaker within 1% THD+N at 24V
supply voltage.
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.

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 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
 Loudspeaker performance
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
 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

DEMO实物图

典型应用原理图

 
 
 
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