Datasheet > SGM4891

SGM4891

更新时间： 2023-09-03 20:37:20

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
9页	571K
描述
1.2W Audio Power Amplifier

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SGM4891 数据手册

SGM4891

1.2W Audio Power Amplifier

GENERAL DESCRIPTION

FEATURES

The SGM4891 is a fully-integrated audio power

amplifier which operates from 2.5V to 5.5V supply

voltage. It can deliver 1.2W into an 8Ω BTL load from

5V supply at THD+N = 1%. It is designed for portable

application that needs low-component count.

 Supply Voltage Range: 2.5V to 5.5V

 1.2W into 8Ω BTL Load from 5V Power Supply at

THD+N = 1% (Typical, per Channel)

 Shutdown Current: 0.02μA (TYP)

 High PSRR

 Fast Turn-On Time

The SGM4891 has a low power consumption

shutdown mode and thermal shutdown protection.

 Unity-Gain Stable

 Thermal Shutdown Protection

 -40℃ to +85℃ Operating Temperature Range

 Available in a Green TDFN-2×2-8L Package

The SGM4891 is applied to low power portable

systems. Output coupling capacitors or bootstrap

capacitors are not needed.

The SGM4891 provides an externally controlled gain

(with resistors), as well as an externally controlled

turn-on time (with the bypass capacitor) for maximum

flexibility.

APPLICATIONS

Mobile Phones

TVs

The SGM4891 is available in a Green TDFN-2×2-8L

package. It operates over an ambient temperature

range of -40℃ to +85℃.

GPS

Portable Systems

SG Micro Corp

NOVEMBER 2012 –REV. A. 2

www.sg-micro.com

12 3 4 5 6 7...9

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