Features
 Single supply voltage
4.5V ~ 14.4V for loudspeaker driver
Built-in LDO output 5.5V for others
 Loudspeaker power from 12V supply
BTL Mode: 8W/CH into 8 @1% THD+N
BTL Mode: 10W/CH into 6 @<1% THD+N
BTL Mode: 12W/CH into 4 @<1% THD+N
PBTL Mode: 16W/CH into 4 @1% THD+N
Loudspeaker power from 12V supply
BTL Mode: 10W/CH into 8 @10% THD+N
BTL Mode: 13W/CH into 6 @10% THD+N
BTL Mode: 15W/CH into 4@10% THD+N
PBTL Mode: 20W/CH into 4 @10% THD+N
 93% efficient Class-D operation eliminates need
for heat sink
 Differential inputs
 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 AD52050 is a high efficiency stereo class-D
audio amplifier with adjustable power limit function.
The loudspeaker driver operates from 4.5V~14.4V
supply voltage. It can deliver 15W/CH output power
into 4 loudspeaker within 10% THD+N at 12V
supply voltage and without external heat sink when
playing music.
The adjustable power limit function allows user to
set a voltage rail lower than half of 5.5V to limit the
amount of current through the speaker.
Output DC detection prevents speaker damage
from long-time current stress. AD52050 provides
superior EMC performance for filter-free application.
The output short circuit and over temperature
protection include auto-recovery feature.