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Slkor LM386M-1 LM386M
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Slkor LM386M-1
- Type
- SLKOR
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- SLKOR
- Electronic Component
- LM386M-1
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- Audio Power Amplifier
- Electronic Component
- 0.17g
- Electronic Component
- 1
- Features
- Analog Voltage
- Electronic Component
- BM0228146963
- Operating Temperature
- 0℃~+70℃
- Operating Voltage
- 4V~12V
- Output Power
- 325mWx1@8Ω
- Static Current(Iq)
- 4mA
- Electronic Component
- Electronic Component
- Electronic Component
- 2500
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LM386M-1 产品概述
一、产品简介
LM386M-1 是一款面向小功率音频输出的单通道低电压音频功率放大器，由 Slkor（萨科微）封装为 SOP-8。器件工作电压范围宽（4V～12V），在典型 8Ω 负载下可提供约 325mW 的输出功率，适用于便携式音响、便携录音/播放设备、玩具音频、门铃及各类小型声音驱动场合。
二、主要性能参数
- 工作电压（Vcc）：4V ～ 12V
- 工作温度范围：0℃ ～ +70℃
- 静态电流（Iq）：4mA（典型）
- 输出功率：325mW × 1（8Ω 负载，典型）
- 总谐波失真+噪声（THD+N）：0.2%（典型）
- 电源纹波抑制比（PSRR）：50dB（典型）
- 封装：SOP-8
以上参数为典型值，实际性能受电源、负载、环境温度及外部外围网络影响。
三、核心特性
- 低工作电流：静态消耗仅约 4mA，有利于电池供电产品延长续航。
- 低失真及低噪声：THD+N 为 0.2%（典型），可保证在小功率场合下的音质表现。
- 良好电源抑制能力：PSRR 约 50dB，可以抵抗电源纹波引入的噪声。
- 宽电源电压范围：4V～12V，支持常见单节或多节电池及稳压电源。
- 单通道输出：结构简单、外围器件少，便于快速集成到系统中。
四、典型应用场景
- 便携式蓝牙音箱与袖珍扬声器
- 便携式音乐播放器、录音笔
- 儿童玩具与语音提示模块
- 小型扩音器、门铃与报警器音源
- 教学实验与音频放大参考设计
五、设计与使用建议
- 电源旁路：为保证稳定的 PSRR 与低噪声表现，建议在 Vcc 端近芯片放置 0.1µF 陶瓷电容与 10µF ～ 100µF 电解电容并联做电源去耦。
- 输出耦合：输出端通常需要耦合电容与扬声器隔直流分量，需按频响要求选择合适容量。
- 增益设置：若需改变放大倍数，可通过器件指定的增益引脚与外部电阻/电容网络进行调整（参考器件应用电路）。
- 布局注意：将敏感输入线远离输出与电源开关噪声源，缩短高电流回路路径以降低噪声与振荡风险。
- 热管理：虽然器件功耗较小，但在高供电电压与低阻负载下功耗增加，应保证良好散热与合理的温度升限使用。
六、封装与订购信息
- 典型封装：SOP-8（表面贴装），便于自动化贴片与批量生产。
- 品牌：Slkor（萨科微）。购买时请留意封装、温度等级与出厂检验报告，以确保与设计要求一致。
七、可靠性与环境适应
在 0℃～+70℃ 的工作温度范围内，器件能稳定工作。为保证长期可靠性，建议在电源、负载与环境温度均在器件额定范围内使用，避免长期在高电流、过压或强振动环境下工作。
总结：LM386M-1 以其低功耗、低失真与简单外围结构，适合小功率音频放大场合。合理的电源去耦、布局与输出耦合设计，可充分发挥其在便携与嵌入式音频场景中的性能。
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