Datasheet > LM48100Q-Q1

LM48100Q-Q1

更新时间： 2023-06-19 15:33:02

品牌	Logo	应用领域
德州仪器 - TI		放大器音频放大器
页数	文件大小	规格书
24页	949K
描述
具有输出故障检测的 1.3W 单声道、模拟输入 AB 类音频放大器

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LM48100Q-Q1 数据手册

LM48100Q

www.ti.com

SNAS470D –OCTOBER 2008–REVISED MARCH 2013

LM48100Q Boomer™ Mono, 1.3W Audio Power Amplifier with Output Fault Detection and

Volume Control

Check for Samples: LM48100Q

FEATURES

DESCRIPTION

The LM48100Q is a single supply, mono, bridge-tied

load amplifier with I²C volume control, ideal for

automotive applications. A comprehensive output

fault detection system senses the load conditions,

protecting the device during short circuit events, as

well as detecting open circuit conditions.

•

Output Fault Detection

•

I²C Volume and Mode Control

Input Mixer/Multiplexer

High PSRR

Individual 32-Step Volume Control

Short Circuit and Thermal Protection

Advanced Click-and-Pop Suppression

Low Power Shutdown Mode

Available in 14-pin HTSSOP Package

Operating from a single 5V supply, the LM48100Q

delivers 1.3W of continuous output power to an 8Ω

load with < 1% THD+N. Flexible power supply

requirements allow operation from 3.0V to 5.5V. High

power supply rejection ratio (PSRR), 74dB at 1kHz,

allows the device to operate in noisy environments

without additional power supply conditioning.

APPLICATIONS

The LM48100Q features dual audio inputs that can

be mixed/multiplexed to the device output. Each input

path has its own independent, 32-step volume

control. The mixer, volume control and device mode

select are controlled through an I²C compatible

interface. An open drain FAULT output indicates

when a fault has occurred. Comprehensive output

short circuit and thermal overload protection prevent

the device from being damaged during a fault

condition.

•

Automotive Instrument Clusters

Hands-free Car Kits

Medical

KEY SPECIFICATIONS

•

Output Power at V_DD= 5V, R_L= 8Ω, THD+N ≤

1% 1.3W (typ)

•

Quiescent Power Supply Current at 5V 6mA

(Typ)

A low power shutdown mode reduces supply current

consumption to 0.01µA. Superior click and pop

suppression eliminates audible transients on power-

up/down and during shutdown. The LM48100Q is

available in an 14-pin HTSSOP package

•

PSRR at 1kHz 74dB (Typ)

Shutdown current 0.01μA (Typ)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Boomer is a trademark of Texas Instruments.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...24

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