LM4864 - 具有停机模式的 300 mW 音频功率放大器

LM4864是TI德州仪器公司的一款扬声器放大器（AB类/D类）产品，LM4864是具有停机模式的 300 mW 音频功率放大器，本站介绍了LM4864的封装应用图解、特点和优点、功能等，并给出了与LM4864相关的TI元器件型号供参考。

LM4864 - 具有停机模式的 300 mW 音频功率放大器 - 扬声器放大器（AB类/D类） - 低功耗放大器 - 德州仪器

产品描述

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.

产品特性

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

Key Specifications

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 µA (typ)

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

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