- 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：具有逻辑低电平关断模式的 1.1W 单声道、模拟输入 AB 类音频放大器
- 点击这里打开及下载LM4876的技术文档资料
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The LM4876 is a single 5V supply bridge-connected audio power amplifier capable of delivering 1.1W (typ) of continuous average power to an 8? load with 0.5% THD+N.
Like other audio amplifiers in the Boomer series, the LM4876 is designed specifically to provide high quality output power with a minimal amount of external components. The LM4876 does not require output coupling capacitors, bootstrap capacitors, or snubber networks. It is perfectly suited for low-power portable systems.
The LM4876 features an active low externally controlled, micro-power shutdown mode. Additionally, the LM4876 features an internal thermal shutdown protection mechanism. For PCB space efficiency, the LM4876 is available in VSSOP and SOIC surface mount packages.
The unity-gain stable LM4876's closed loop gain is set using external resistors.
- Does Not Require Output Coupling Capacitors, Bootstrap Capacitors, Or Snubber Circuits
- 10-pin VSSOP and 8-pin SOIC Packages
- Unity-Gain Stable
- External Gain Set
- THD+N at 1kHz for 1W Continuous Average Output Power into 8? 0.5% (max)
- Output Power At 1kHz Into 8? with 10% THD+N 1.5 W (typ)
- Shutdown Current 0.01μA (typ)
- Supply Voltage Range 2.0V 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
- Load (Min) (ohms)
- 8
- Output power (W)
- 2.3
- THD + N @ 1 kHz (%)
- 0.25
- Iq (Typ) (mA)
- 6.5
- Control interface
- Hardware
- Closed/open loop
- Open
- Analog supply (Min) (V)
- 2
- Analog supply (Max) (V)
- 5.5
- PSRR (dB)
- 65
- Operating temperature range (C)
- -40 to 85
LM4876的完整型号有：LM4876M/NOPB、LM4876MM/NOPB、LM4876MX/NOPB，以下是这些产品的关键参数及官网采购报价：
LM4876M/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LM4876M/NOPB的批量USD价格：.576（1000+）
LM4876MM/NOPB，工作温度：-40 to 85，封装：VSSOP (DGS)-10，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LM4876MM/NOPB的批量USD价格：.48（1000+）
LM4876MX/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LM4876MX/NOPB的批量USD价格：.48（1000+）
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