NCP2991 Datasheet (ON Semiconductor) - 1.35W Audio Power Amplifier

NCP2991, 1.35W Audio Power Amplifier

Pin Name A1 INM A2 OUTA A3 INP B1 VM B2 TON Type I O I I I B3 VP I C1 BYPASS I C2 OUTB O C3 SHUTDOWN I Description Negative input of the first amplifier, receives the audio input signal.

Connected to the feedback resistor Rf and to the input resistor Rin.

Negative output of the NCP2991.

NCP2991 1.35 Watt Audio Power Amplifier with Selectable Fast Turn On Time The NCP2991 is an audio power amplifier designed for portable communication device applications such as mobile phone applications.

The NCP2991 is capable of delivering 1.35 W of continuous average power to an 8.0 W BTL load from a 5.0 V power supply, and 1.1 W to a 4.0 W BTL load from a 3.6 V power supply.

The NCP2991 provides high quality audio while requiring few external components and minimal power consumption.

It fea

NCP2991 Features

* a low

* power consumption shutdown mode, which is achieved by driving the SHUTDOWN pin with logic low. The NCP2991 contains circuitry to prevent from “pop and click” noise that would otherwise occur during turn

* on and turn

* off transitions. It is a zero pop noise device when a s