
- 制造厂商:TI(德州仪器,Texas Instruments)
- 产品类别:音频
- 技术类目:音频放大器 - 扬声器放大器
- 功能描述:725mW 单声道、模拟输入 AB 类音频放大器
- 点击这里打开及下载LM4864的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格

The LM4864 is a bridged audio power amplifier capable of delivering 725mW of continuous average power into an 8Ω load with 1% THD+N from a 5V power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power from a low supply voltage while requiring a minimal amount of external components. Since the LM4864 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications.
The LM4864 features an externally controlled, low power consumption shutdown mode, and thermal shutdown protection.
The closed loop response of the unity-gain stable LM4864 can be configured by external gain-setting resistors. The device is available in multiple package types to suit various applications.
- VSSOP, SOIC, PDIP, and WSON Packaging
- No Output Coupling Capacitors, Bootstrap Capacitors, or Snubber Circuits are Necessary
- Thermal Shutdown Protection Circuitry
- Unity-Gain Stable
- External Gain Configuration Capability
- PO at 1% THD+N with VDD = 5V, 1kHz
- LM4864LD, 4 load 625 mW (typ)
- LM4864LD, 8 load 725 mW (typ)
- LM4864M & LM4864N, 8 load 675 mW (typ)
- LM4864MM, 8 load 300 mW (typ)
- LM4864, 16 load 550 mW (typ)
- Shutdown current 0.7 A (typ)
All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.
- Audio input type
- Analog Input
- Architecture
- Class-AB
- Speaker channels (Max)
- Mono
- Power stage supply (Max) (V)
- 5.5
- Power stage supply (Min) (V)
- 2.7
- Load (Min) (ohms)
- 4
- Output power (W)
- 0.85
- THD + N @ 1 kHz (%)
- 0.7
- Iq (Typ) (mA)
- 3.6
- Control interface
- Hardware
- Closed/open loop
- Open
- Analog supply (Min) (V)
- 2.7
- Analog supply (Max) (V)
- 5.5
- PSRR (dB)
- 50
- Operating temperature range (C)
- -40 to 85
LM4864的完整型号有:LM4864M/NOPB、LM4864MM、LM4864MM/NOPB、LM4864MMX/NOPB、LM4864MX/NOPB,以下是这些产品的关键参数及官网采购报价:
LM4864M/NOPB,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:95个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM4864M/NOPB的批量USD价格:.474(1000+)
LM4864MM,工作温度:-40 to 85,封装:VSSOP (DGK)-8,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SNPB,TI官网LM4864MM的批量USD价格:.553(1000+)
LM4864MM/NOPB,工作温度:-40 to 85,封装:VSSOP (DGK)-8,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM4864MM/NOPB的批量USD价格:.474(1000+)
LM4864MMX/NOPB,工作温度:-40 to 85,封装:VSSOP (DGK)-8,包装数量MPQ:3500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM4864MMX/NOPB的批量USD价格:.395(1000+)
LM4864MX/NOPB,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM4864MX/NOPB的批量USD价格:.395(1000+)

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