Datasheet > NCP2991_09

NCP2991_09

更新时间： 2024-11-29 10:28:15

品牌	Logo	应用领域
安森美 - ONSEMI		放大器功率放大器
页数	文件大小	规格书
15页	3918K
描述
1.35 Watt Audio Power Amplifier with Selectable Fast Turn On Time

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NCP2991_09 数据手册

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

http://onsemi.com

MARKING

continuous average power to an 8.0ꢀ ꢁ BTL load from a 5.0 V power

DIAGRAMS

supply, and 1.1 W to a 4.0 ꢁ 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 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 single ended or a

differential audio input is used.

For maximum flexibility, the NCP2991 provides an externally

controlled gain (with resistors). In addition, it integrates 2 different

Turn On times (15 ms or 30 ms) adjustable with the TON pin.

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

battery, saving the use of an LDO.

9−Pin Flip−Chip CSP

FC SUFFIX

MRHG

AYWW

CASE 499E

MRH = Specific Device Code

= Assembly Location

= Year

= Work Week

= Pb−Free Package

PIN CONNECTIONS

This device is available in a 9−Pin Flip−Chip CSP (Lead−Free).

Features

INM

OUTA

INP

• 1.35 W to an 8.0 ꢁ BTL Load from a 5.0 V Power Supply

• Best−in−Class PSRR: up to −100 dB, Direct Connection to the

Battery

TON

• Zero Pop Noise Signature with a Single Ended Audio Input

• Ultra Low Current Shutdown Mode: 10 nA

• 2.5 V−5.5 V Operation

• External Gain Configuration Capability

• External Turn−on Time Configuration Capability: 15 ms or 30 ms

• Thermal Overload Protection Circuitry

• This is a Pb−Free Device*

BYPASS OUTB SHUTDOWN

(Top View)

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 14 of this data sheet.

Typical Applications

• Portable Electronic Devices

• PDAs

• Wireless Phones

*For additional information on our Pb−Free strategy and soldering details, please

downloadthe ON Semiconductor Soldering and Mounting Techniques Reference

Manual, SOLDERRM/D.

Semiconductor Components Industries, LLC, 2009

Publication Order Number:

November, 2009 − Rev. 2

NCP2991/D

12 3 4 5 6 7...15

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