EUA6288 Datasheet | Eutech Microelectronics

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 500m A 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 monly 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, prehensive 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 Ro HS pliant and 100% Lead(Pb)-Free Halogen-Free APPLICATIONS Mobile Phones/ Smartphones Personal Media Players Tablet PC Handheld Gaming Notebook puters Typical Application Circuit Vm Ry w‘ fo b w .go w w om c . h tec Figure1. DS6288 Ver1.0 Sep. 2011 N~- NªtmæW3^Vmw‘Rybg PQl Sł Tel: 0755-8398 3377 / 135 9011 2223 Pin Configurations Package Type http://.gofotech. Pin Configurations TQFN-28 Pin Description SHDN TQFN-28 DESCRIPTION Shutdown. “High Voltage” enable IC, “Low Voltage” disable IC, SHDN pin can not be floating. NC C1P CPVDD FBININ+ FB+ FS VCC SVSS OUTGND OUT+ PVSS C1N CPGND 2,5,6,8,11,17, No Connection. No internal connection. 19,23,25,28 Charge-Pump Flying Capacitor, Positive Terminal. Connect a 4.7µF capacitor 3 between C1P and C1N. 4 Charge-Pump Positive Supply Vm R w‘ yb 7 9 10 12 13 14,22 15,21 16 18 20 24 26 27 fo o g Negative w. Amplifier Input w w Positive Amplifier Input Negative Amplifier Feedback om c . h tec Positive Amplifier Feedback Charge-Pump...