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LM4675TLXSLASHNOPB.A中文资料

厂家型号

LM4675TLXSLASHNOPB.A

文件大小

882.68Kbytes

页面数量

25

功能描述

LM4675 Ultra-Low EMI, Filterless, 2.65W, Mono, Class D Audio Power Amplifier with Spread Spectrum

数据手册

下载地址一下载地址二到原厂下载

生产厂商

TI2

LM4675TLXSLASHNOPB.A数据手册规格书PDF详情

1FEATURES

2• Spread Spectrum Architecture Reduces EMI

• Mono Class D Operation

• No Output Filter Required for Inductive Loads

• Externally Configurable Gain

• Very Fast Turn On Time: 17μs (typ)

• Minimum External Components

• Click and Pop Suppression Circuitry

• Micro-Power Shutdown Mode

• Available in Space-Saving 0.5mm Pitch

DSBGA and WSON Packages

APPLICATIONS

• Mobile Phones

• PDAs

• Portable Electronic Devices

KEY SPECIFICATIONS

• Efficiency at 3.6V, 400mW into 8Ω Speaker:

89% (typ)

• Efficiency at 3.6V, 100mW into 8Ω Speaker:

80% (typ)

• Efficiency at 5V, 1W into 8Ω Speaker: 89%

(typ)

• Quiescent Current, 3.6V Supply: 2.2mA (typ)

• Total Shutdown Power Supply Current: 0.01μA

(typ)

• Single Supply Range: 2.4V to 5.5V

• PSRR, f = 217Hz: 82dB

DESCRIPTION

The LM4675 is a single supply, high efficiency,

2.65W, mono, Class D audio amplifier. A spread

spectrum, filterless PWM architecture reduces EMI

and eliminates the output filter, reducing external

component count, board area consumption, system

cost, and simplifying design.

The LM4675 is designed to meet the demands of

mobile phones and other portable communication

devices. Operating on a single 5V supply, it is

capable of driving a 4Ω speaker load at a continuous

average output of 2.2W with less than 1% THD+N. Its

flexible power supply requirements allow operation

from 2.4V to 5.5V. The wide band spread spectrum

architecture of the LM4675 reduces EMI-radiated emissions due to the modulator frequency.

The LM4675 has high efficiency with speaker loads

compared to a typical Class AB amplifier. With a 3.6V

supply driving an 8Ω speaker, the IC's efficiency for a

100mW power level is 80%, reaching 89% at 400mW

output power.

The LM4675 features a low-power consumption

shutdown mode. Shutdown may be enabled by

driving the Shutdown pin to a logic low (GND).

The gain of the LM4675 is externally configurable

which allows independent gain control from multiple

sources by summing the signals. Output short circuit

and thermal overload protection prevent the device

from damage during fault conditions.

更新时间:2025-10-18 10:59:00
供应商 型号 品牌 批号 封装 库存 备注 价格
NS/国半
23+
BGA
50000
全新原装正品现货,支持订货
NS/国半
24+
DSBGA9
39197
郑重承诺只做原装进口现货
MIC
24+
NA
990000
明嘉莱只做原装正品现货
NS
17+
QFN
6200
100%原装正品现货
NS
25+
QFN
4500
百分百原装正品 真实公司现货库存 本公司只做原装 可
NSC
23+
QFN14
30000
代理全新原装现货,价格优势
NSC
08+
LLP
220
普通
NS/国半
23+
LLP14
13000
原厂授权一级代理,专业海外优势订货,价格优势、品种
NS
22+
DFN-14
3000
原装正品,支持实单
NS
LLP-14
68500
一级代理 原装正品假一罚十价格优势长期供货