APA2623 Datasheet, PDF (1/28 Pages) Anpec Electronics Coropration – 15W Stereo Class-D Audio Power Amplifier

APA2623
15W Stereo Class-D Audio Power Amplifier
Features
• Supply Voltage is 4.5V ~ 16V
• Class D operation eliminates heat sink & reduce
power supply requirement
• 20,26, 32, 36, 4 steps gain setting
• 15W/ch into an 8Ω Stereo Loads at 1% THD+N from
a 16-V supply
• 10W/ch into an 8Ω Stereo Loads at 10% THD+N
from a 12-V supply
• 30W into a 4Ω Mono Load at 10% THD+N from a 16-
V supply
• 90% Efficient Class-D Operation Eliminates Need
for Heat Sinks
• External AGC function
• Thermal and Over-Current Protections with Auto-
Recovery option
• TSSOP-28P with thermal pad packages
• QFN4x4-28B with thermal pad packages
Applications
• LCD Monitor
• Consumer Audio Equipment
General Description
The APA2623 is a stereo, high efficiency, Class-D audio
amplifier and is available in TSSOP-28P and QFN4x4-
28B pins packages.
The Class-D power amplifier has higher efficiency com-
pared to the traditional Class-AB power amplifier. The
filter free Class-D architecture eliminates the external low
pass filters. The internal gain setting can minimize the
external component counts, and for the flexible applica-
tion the gain can be set to 4-step 20, 26, 32, 36dB by gain
control pins (GAIN0 and GAIN1). The AGC function pro-
tects speaker from being out of its power rating but keeps
acceptable performance.
The integration of Class-D power amplifier is a best so-
lution for high efficiency and low BOM costs. The operat-
ing voltage is from 4.5V to 16V. The APA2623 power am-
plifiers are capable of driving 15 W at VDD=16V into
8Ω speaker, and provides thermal and over-current
protections. It also can detect the DC and then prevent
the speaker voice coil from being detroyed.
Simplified Application Circuit
Left
Channel
Input
Right
Channel
Input
APA2623
LOUTP
LINP
LINN
LOUTN
RINN
RINP
ROUTN
ROUTP
FERRITE
BEAD
FILTER
FERRITE
BEAD
FILTER
Left
Channel
Speaker
Right
Channel
Speaker
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
1
Rev. A.2 - Jan., 2016
www.anpec.com.tw