EUA2112 Datasheet | Eutech Microelectronics

DESCRIPTION The EUA2112 is a high efficiency, one channel bridged-tied load (BTL), class-D audio power amplifier. Operating from a 24V power supply, EUA2112 is capable of delivering 25W of continuous output power to a 8Ω load with 10% THD+N. The EUA2112 features a differential input architecture offering improved noise immunity over a single-ended (SE) input amplifier. Amplifier gain is internally configured and can be selected to 20, 26, 32 or 36d B utilizing the Go and G1 gain select pins. Advanced EMI suppression technology enables the use of inexpensive ferrite bead at the outputs while meeting EMC requirements. The speaker protection circuitry is integrated into EUA2112 to limit the amount of current through the speaker. The EUA2112 also features short-circuit and thermal protection preventing the device from being damaged during a fault condition. The EUA2112 is available in thermally efficient 28-pin TSSOP package. FEATURES z z z z z z z z z z z Wide Supply Voltage: 8V to 26V Unique Modulation Scheme Reduces EMI Emission 25W into an 8-Ω Load From a 24-V Supply 20W into a 4-Ω Load From a 12-V Supply 94% Efficient Class-D Operation Eliminates Need for Heat Sinks Four Selectable, Gain Settings Differential Inputs Speaker Protection Circuitry Thermal and Short-Circuit Protection 28-pin TSSOP Package with Thermal Pad Ro HS pliant and 100% lead(Pb)-free Halogen-Free APPLICATIONS z Televisions Typical Application Circuit VÛm w`R - yÑb € ww w.g ofot ech. Figure1. Simplified Application Schematic DS2112 Ver0.1 Apr. 2010 N~- NãtÿmñW3^VÛmw`R- yÑb€g- PQl Sø Tel: 0755-8398 3377 / 135 9011 2223 http://.gofotech. Pin Configurations Package Type Pin Configurations TSSOP-28 Pin Description PIN TSSOP-28 1 I/O/P I FAULT GND GAIN0 GAIN1 AVCC AGND GVDD PLIMIT INN INP NC PVCC BSP OUTP PGND BSN OUTN 3,4 5 6 7,14 8 9 10 11 12 13 15,16,27,28 17,21 18,20 19,24 22,26 23,25 I I I P P O I I I P P I O ww w.g ofot ec m h.co VÛm w`R - yÑb...