IS31AP4915A
Integrated Silicon Solution, Inc. – www.issi.com 1
Rev. B, 08/08/2013
20V
P-P
CHARGE PUMP CERAMIC SPEAKER DRIVER
August 2013
GENERAL DESCRIPTION
The IS31AP4915A features a mono power amplifier
with an integrated charge-pump power supply
specifically designed to drive the high capacitance of
a ceramic loudspeaker.
The IS31AP4915A maximizes battery life by offering
high performance efficiency.
The IS31AP4915A is ideally suited to deliver the high
output-voltage swing required to drive
ceramic/piezoelectric speakers.
The device utilizes comprehensive click-and-pop
suppression and shutdown control. The
IS31AP4915A is fully specified over the -40°C to
+85°C extended temperature range and is available
in small lead-free 16-pin QFN (4mm × 4mm)
packages.
TYPICAL APPLICATION CIRCUIT
FEATURES
Integrated charge-pump power supply - no
inductor required
Thermal protection
Pop reduction circuitry
20V
P-P
voltage swing into piezoelectric speaker
QFN-16, 4mm × 4mm
ESD (HBM): 2kV
ESD (MM): 200V
APPLICATIONS
CD/MP3 players
Smart phones
Cellular phones
PDAs
Handheld gaming
Figure 1 Typical Application Circuit