Texas Instruments LM4862
The LM4862 is a bridge-connected audio power amplifier capable of delivering typically 675mW of continuous average power to an 8Ω load with 1% THD+N from a 5V power supply. The LM4862 features an externally controlled, lowpower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. The unity-gain stable LM4862 can be configured by external gain-setting resistors.| Part No. | LM4862 |
|---|---|
| Datasheet | LM4862 Download |
| Manufacturer |  Texas Instruments |
| Description | 675mW Audio Power Amplifier |
| Buy | Stock & Price |
FEATURES
1●2 No Output Coupling Capacitors, Bootstrap Capacitors or Snubber Circuits are Necessary
● Small Outline or PDIP Packaging
● Unity-Gain Stable
● External Gain Configuration Capability
● Pin Compatible with LM4861
APPLICATIONS
● Portable Computers● Cellular Phones
● Toys and Games KEY SPECIFICATIONS
● THD+N for 500mW Continuous Average Output Power at 1kHz into 8Ω 1% (max)
● Output Power at 10% THD+N at 1kHz into 8Ω 825 mW (typ)
● Shutdown Current 0.7μA (typ)
DESCRIPTION
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4862 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is optimally suited for low-power portable systems. Typical Application Connection Diagram *Refer to Application Information for information concerning proper selection of the input coupling capacitor. Figure 1. Typical Audio Amplifier Application Circuit Figure 2.
