20VP-P CHARGE PUMP CERAMIC SPEAKER DRIVER
IS31AP4915
20VP-P CHARGE PUMP CERAMIC SPEAKER DRIVER
September 2012 GENERAL DESCRIPTION The IS31AP4915 features a mono p...
Description
IS31AP4915
20VP-P CHARGE PUMP CERAMIC SPEAKER DRIVER
September 2012 GENERAL DESCRIPTION The IS31AP4915 features a mono power amplifier with an integrated charge-pump power supply specifically designed to drive the high capacitance of a ceramic loudspeaker. The IS31AP4915 maximizes battery life by offering high performance efficiency. The IS31AP4915 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 IS31AP4915 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. FEATURES Integrated charge-pump power supply - no inductor required Thermal protection Pop reduction circuitry 20VP-P voltage swing into piezoelectric speaker QFN-16, 4mm × 4mm
APPLICATIONS CD/MP3 players Smart phones Cellular phones PDAs Handheld gaming
TYPICAL APPLICATION CIRCUIT
220pF 200K
http://www.DataSheet4U.net/
33nF
5K
OUT + IN SVDD PVDD FB 10K 10K
10ohm
2.5 - 5.5V
1 uF
SHUTDOWN
SD OUT C1N 100K SGND PGND SVSS PVSS
10ohm
C1P
10 uF
10 uF
Figure 1
Typical Application Circuit
Integrated Silicon Solution, Inc. – www.issi.com Rev.B, 09/11/2012
1
datasheet pdf - http://www.DataSheet4U.net/
IS31AP4915
PIN CONFIGURATION Package Pin Configuration (Top View)
14 SGND 16 PVDD 13 NC 12 IN 11 SD 10 FB 9 OUT+ SVDD 8 15 SD 6 SVSS
C1P PGND
1 2 3 4
QFN-16
C1N ...
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