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Eutech Microelectronics

EUA6288 Datasheet Preview

EUA6288 Datasheet

Ceramic Speaker Driver

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EUA6288
14VP-P, Mono, Class G
Ceramic Speaker Driver
DESCRIPTION
The EUA6288 is a mono Class G power amplifier with an
integrated inverting charge-pump power supply. The
charge pump can supply up to 500mA of peak out-put
current over at 5V, guaranteeing an output of 14VP-P.
The EUA6288 offers good performance through the class
G output stage, which provides efficiency levels greater
than Class AB devices without the EMI penalties
commonly associated with Class D amplifiers. The
EUA6288 is ideally designed to deliver the high output
voltage swing for ceramic/piezoelectric speakers. The
device utilizes fully differential inputs and outputs,
comprehensive click-and-pop suppression, shutdown
control, and soft-start circuitry. The EUA6288 is available
in 28-pin TQFN (4mm× 4mm) package.
FEATURES
2.7V-5.0V Operation
Integrated Charge-Pump Power Supply
14VP-P Voltage Swing into Piezoelectric Speaker
Click-and-Pop Suppression
Available in TQFN-28 Package
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
Mobile Phones/ Smartphones
Personal Media Players
Tablet PC
Handheld Gaming
Notebook Computers
Typical Application Circuit
DS6288 Ver1.0 Sep. 2011
Figure1.
1




Eutech Microelectronics

EUA6288 Datasheet Preview

EUA6288 Datasheet

Ceramic Speaker Driver

No Preview Available !

Pin Configurations
Package Type
EUA6288Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Pin Configurations
TQFN-28
Pin Description
PIN
SHDN
NC
C1P
CPVDD
FB-
TQFN-28
DESCRIPTION
1
2,5,6,8,11,17,
19,23,25,28
3
Shutdown. “High Voltage” enable IC, “Low Voltage” disable IC, SHDN pin
can not be floating.
No Connection. No internal connection.
Charge-Pump Flying Capacitor, Positive Terminal. Connect a 4.7µF capacitor
between C1P and C1N.
4 Charge-Pump Positive Supply
7 Negative Amplifier Feedback
IN- 9 Negative Amplifier Input
IN+ 10 Positive Amplifier Input
FB+
FS
VCC
SVSS
OUT-
12
13
14,22
15,21
16
Positive Amplifier Feedback
Charge-Pump Frequency Set. Connect a 100kresistor from FS to GND to
set the charge-pump switching frequency.
Supply Voltage. Bypass with a 10µF capacitor to GND.
Amplifier Negative Power Supply. Connect to PVSS.
Negative Amplifier Output
GND
18 Ground
OUT+
20 Positive Amplifier Output
PVSS
C1N
CPGND
24 Charge-Pump Output. Connect a 10µF capacitor between PVSS and CPGND.
26
Charge-Pump Flying Capacitor, Negative Terminal. Connect a 4.7µFcapacitor
between C1N and C1P.
27 Charge-Pump Ground. Connect to GND.
DS6288 Ver1.0 Sep. 2011
2


Part Number EUA6288
Description Ceramic Speaker Driver
Maker Eutech Microelectronics
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