- 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：具有短路保护的 1.8W 单声道 2.7V 至 9V 模拟输入 AB 类音频放大器
- 点击这里打开及下载LM4951A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 LM4951A is an audio power amplifier designed for applications with supply voltages ranging from 2.7V up to 9V. The LM4951A is capable of delivering 1.8W continuous average power with less than 1% THD+N into a bridge connected 8? load when operating from a 7.5VDC power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4951A does not require bootstrap capacitors, or snubber circuits.
The LM4951A features a low-power consumption active-low shutdown mode. Additionally, the LM4951A features an internal thermal shutdown protection mechanism and short circuit protection.
The LM4951A contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.
The LM4951A is unity-gain stable and can be configured by external gain-setting resistors.
- Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
- Wide Supply Voltage Range: 2.7V to 9V
- Low Current, Active-Low Shutdown Mode
- Low Quiescent Current
- Thermal Shutdown Protection
- Short Circuit Protection
- Unity-Gain Stable
- External Gain Configuration Capability
- Wide Voltage Range 2.7V to 9V
- Quiescent Power Supply Current (VDD = 7.5V) 2.5mA (typ)
- Power Output BTL at 7.5V, 1% THD 1.8 W (typ)
- Shutdown Current 0.01μA (typ)
- Fast Turn on Time 25ms (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)
- 9
- Power stage supply (Min) (V)
- 2.7
- Load (Min) (ohms)
- 8
- Output power (W)
- 2.2
- THD + N @ 1 kHz (%)
- 0.07
- Iq (Typ) (mA)
- 2.5
- Control interface
- Hardware
- Closed/open loop
- Open
- Analog supply (Min) (V)
- 2.7
- Analog supply (Max) (V)
- 9
- PSRR (dB)
- 66
- Operating temperature range (C)
- -40 to 85
LM4951A的完整型号有：LM4951ASD/NOPB、LM4951ASDX/NOPB，以下是这些产品的关键参数及官网采购报价：
LM4951ASD/NOPB，工作温度：-40 to 85，封装：WSON (DPR)-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LM4951ASD/NOPB的批量USD价格：0.646（1000+）
LM4951ASDX/NOPB，工作温度：-40 to 85，封装：WSON (DPR)-10，包装数量MPQ：4500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LM4951ASDX/NOPB的批量USD价格：0.538（1000+）
PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice
PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。借助?PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。
在?PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)
