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.