NCP9004

www.DataSheet4U.com NCP9004 2.65 W Filterless Class−D Audio Power Amplifier The NCP9004 is a cost−effective mono Class−D audio power amplifier capable of delivering 2.65 W of continuous average power to 4.0 W from a 5.0 V supply in a Bridge Tied Load (BTL) configuration. Under the same conditions, the output power stage can provide 1.4 W to a 8.0 W BTL load with less than 1% THD+N. For cellular handsets or PDAs it offers space and cost savings because no output filter is required when using inductive tranducers. With more than 90% efficiency and very low shutdown current, it increases the lifetime of your battery and drastically lowers the junction temperature. The NCP9004 processes analog inputs with a pulse width modulation technique that lowers output noise and THD when compared to a conventional sigma−delta modulator. The device allows independent gain while summing signals from various audio sources. Thus, in cellular handsets, the earpiece, the loudspeaker and even the melody ringer can be driven with a single NCP9004. Due to its low 42 mV noise floor, A−weighted, a clean listening is guaranteed no matter the load sensitivity. Features http://onsemi.com MARKING DIAGRAM 9−PIN FLIP−CHIP CSP FC SUFFIX CASE 499E 1 MAQ A Y WW G = Device Code = Assembly Location = Year = Work Week = Pb−Free Package MAQG AYWW 1 PIN CONNECTIONS 9−Pin Flip−Chip CSP A1 INP B1 VP C1 INM A2 GND B2 VP C2 SD (Top View) A3 OUTM B3 GND C3 OUTP Optimized PWM Output Stage: Filterless Capability E...