- 制造厂商:TI
- 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:具有直流音量控制和耳机放大器的 750mW、立体声、模拟输入、AB 类音频放大器
- 点击这里打开及下载LM4865的技术文档资料
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The LM4865 is a mono bridged audio power amplifier with DC voltage volume control. The LM4865 is capable of delivering 750mW of continuous average power into an 8? load with less than 1% THD when powered by a 5V power supply. Switching between bridged speaker mode and headphone (single ended) mode is accomplished using the headphone sense pin. To conserve power in portable applications, the LM4865's micropower shutdown mode (IQ = 0.7µA, typ) is activated when less than 300mV is applied to the DC Vol/SD pin.
Boomer audio power amplifiers are designed specifically to provide high power audio output while maintaining high fidelity. They require few external components and operate on low supply voltages.
- DC Voltage Volume Control
- Headphone Amplifier Mode
- “Click and Pop” Suppression
- Shutdown Control When Volume Control Pin Is Low
- Thermal Shutdown Protection
- PO at 1.0% THD+N Into 8? SOIC, Micro SMD 750 mW (typ)
- PO at 10% THD+N Into 8? SOIC, Micro SMD 1W (typ)
- Shutdown Current 0.7μA(typ)
- Supply Voltage Range 2.7V to 5.5 V
All trademarks are the property of their respective owners.
- 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)
- 8
- Output power (W)
- 1
- THD + N @ 1 kHz (%)
- 0.6
- Iq (Typ) (mA)
- 3.5
- 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
LM4865的完整型号有:LM4865M/NOPB、LM4865MM/NOPB、LM4865MMX/NOPB、LM4865MX/NOPB,以下是这些产品的关键参数及官网采购报价:
LM4865M/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LM4865M/NOPB的批量USD价格:1.054(1000+)
LM4865MM/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LM4865MM/NOPB的批量USD价格:1.054(1000+)
LM4865MMX/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LM4865MMX/NOPB的批量USD价格:.878(1000+)
LM4865MX/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LM4865MX/NOPB的批量USD价格:.878(1000+)
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