IS31AP4915A-QFLS2-EB Datasheet IS31AP4915A-QFLS2-TR, IS31AP4915A-QFLS2-EB | P1-P3

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

IS31AP4915A

Integrated Silicon Solution, Inc. – www.issi.com 2

Rev. B, 08/08/2013

PIN CONFIGURATION

Package Pin Configuration (Top View)

QFN-16

PIN DESCRIPTION

No. Pin Description

1 C1P Charge pump flying capacitor positive terminal.

2 PGND Power ground, connect to ground.

3 C1N Charge pump flying capacitor negative terminal.

4 PVSS Output from charge pump.

5, 13 NC No connection.

6 SVSS Amplifier negative supply, connect to PVSS.

7 OUT+ Positive output signal.

8 SVCC Amplifier positive supply, connect to PVCC.

9 OUT- Negative output signal.

10 FB Feed back.

11, 15 SDB Shutdown, active low logic.

12 IN Audio input signal.

14 SGND Signal ground, connect to ground.

16 PVCC Charge pump supply voltage, connect to positive supply.

Thermal Pad Connect to GND.

IS31AP4915A

Integrated Silicon Solution, Inc. – www.issi.com 3

Rev. B, 08/08/2013

ORDERING INFORMATION

Industrial Range: -40°C to +85°C

Order Part No. Package QTY/Reel

IS31AP4915A-QFLS2-TR QFN-16, Lead-free 2500

timewithoutnotice.ISSIassumesnoliabilityarisingoutoftheapplicationoruseofanyinformation,productsorservicesdescribedherein.Customersare

advisedto

obtainthelatestversionofthisdevicespecificationbeforerelyingonanypublishedinformationandbeforeplacingordersforproducts.

IntegratedSiliconSolution,Inc.doesnotrecommendtheuseofanyofitsproductsinlifesupportapplicationswherethefailureormalfunctionofthe

productcanreasonablybeexpected

tocausefailureofthelifesupportsystemortosignificantlyaffectitssafetyoreffectiveness.Productsarenot

authorizedforuseinsuchapplicationsunlessIntegratedSiliconSolution,Inc.receiveswrittenassurancetoitssatisfaction,that:

a.)theriskofinjuryorda magehasbeenminimized;

b.)theuserassume

allsuchrisks;and

c.)potentialliabilityofIntegratedSiliconSolution,Incisadequatelyprotectedunderthecircumstances

P1-P3 P4-P6 P7-P9

IS31AP4915A-QFLS2-EB

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