© Semiconductor Components Industries, LLC, 2005

March, 2005 − Rev. 3

1

Publication Order Number:

NCP4896/D

NCP4896

1.0 Watt Audio Power

Amplifier with Earpiece

Driving Capability

The NCP4896 is an audio power amplifier designed for portable

communication device applications such as mobile phones. This part

is capable of delivering 1.0 W of continuous average power to an

8.0

W BTL load from a 5.0 V power supply and, 250 mW to a 4.0 W

BTL from 2.6 V power supply. It also provides the control of driving

a single−ended earpiece and delivers 90 mW from a 5.0 V power

supply to a 32

W load.

This device provides high quality audio while requiring few

external components and minimal power consumption. It features a

low−power consumption shutdown mode, which is achieved by

driving the shutdown pin with logic Low.

The NCP4896 contains circuitry to prevent from “pop and click”

noise that would otherwise occur during turn−on and turn−off

transitions. It is also efficient when switching modes from BTL to SE

and SE to BTL.

For maximum flexibility, the part provides an externally controlled

gain (with resistors), as well as an externally controlled turn−on time

(with bypass capacitor).

Due to its excellent PSRR, it can be directly connected to the

battery, saving the use of an LDO.

Features

Typical Applications

9−PIN FLIP−CHIP

FC SUFFIX

CASE 499AL

PIN CONNECTIONS

9−PIN FLIP−CHIP CSP

XXX

= Specific Device Code

A

= Assembly Location

Y

= Year

WW

= Work Week

MARKING

DIAGRAM

A3

B3

C3

A2

B2

C2

A1

B1

C1

SE/BTL

BYP

OUTB

VP

NC

VM

INM

SD

OUTA

(Top View)

1

See detailed ordering and shipping information in the package

dimensions section on page 15 of this data sheet.

ORDERING INFORMATION

XXX

AYWW

A1

A3

C1

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