- 参考价格:¥13.04-¥8.76
更新日期:2024-04-01 00:04:00
产品简介:3.0W 单声道、2.7V 至 9V 电源电压、模拟输入 D 级音频放大器
查看详情- 参考价格:¥13.04-¥8.76
LM4954TL/NOPB 供应商
- 公司
- 型号
- 品牌
- 封装/批号
- 数量
- 地区
- 日期
- 说明
- 询价
-
TI
-
原厂原装
22+ -
3288
-
上海市
-
-
-
一级代理原装
-
TI(德州仪器)
-
DSBGA-9
2022+ -
12000
-
上海市
-
-
-
原装可开发票
LM4954TL/NOPB 中文资料属性参数
- 制造商:National Semiconductor (TI)
- 产品:Class-AB
- 输出功率:1.2 W x 1 at 8 Ohms
- 输出类型:1-Channel Mono
- THD + 噪声:0.1 %
- 工作电源电压:3 V, 5 V
- 最大工作温度:+ 85 C
- 安装风格:SMD/SMT
- 封装 / 箱体:uSMD
- 封装:Reel
- 音频负载电阻:8 Ohms
- 输入信号类型:Single
- 最小工作温度:- 40 C
- 输出信号类型:Differential
- 工厂包装数量:250
- 电源类型:Single
- Supply Voltage - Max:9 V
- Supply Voltage - Min:2.7 V
产品特性
- No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
- Unity Gain Stable
- Externally Configurable Gain
- Ultra Low Current Active Low Shutdown Mode
- BTL Output can Drive Capacitive Loads Up to 100pF
- “Click and Pop” Suppression Circuitry
- 2.7V - 9.0V Operation
- Available in Space-Saving DSBGA Package
- Wide Power Supply Voltage Range, 2.7 ≤ VDD ≤ 9V
- Output Power: VDD = 7V, 1% THD+N, 2.4W (Typ)
- Quiescent Power Supply Current, 3mA (Typ)
- PSRR: VDD = 5V and 3V at 217Hz, 80dB (Typ)
- Shutdown Power Supply Current, 0.01µA (Typ)
产品概述
The LM4954 is an audio power amplifier primarily designed for demanding applications in
mobile phones and other portable communication device applications. It is capable of delivering 2.4
Watts of continuous average power to an 8Ω BTL load with less than 1% THD+N from a
7VDC power supply. Boomer audio power amplifiers are designed specifically to provide high quality output
power with a minimal number of external components. The LM4954 does not require output coupling
capacitors or bootstrap capacitors, and therefore is ideally suited for lower-power portable
applications where minimal space and power consumption are primary requirements.The LM4954 features a low-power consumption global shutdown mode which is achieved by
driving the shutdown pin with logic low. Additionally, the LM4954 features an internal thermal
shutdown protection mechanism. The LM4954 contains advanced pop & click circuitry which eliminates noises that would
otherwise occur during turn-on and turn-off transitions.The LM4954 is unity-gain stable and can be configured by external gain-setting resistors.
LM4954TL/NOPB 数据手册
数据手册 | 说明 | 数量 | 操作 |
---|---|---|---|
![]() |
Amplifier IC 1-Channel (Mono) Class AB 9-DSBGA |
23页,1.36M | 查看 |
LM4954TL/NOPB 电路图

LM4954TL/NOPB 电路图
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