LM4818
LM4818 is 350mW Audio Power Amplifier manufactured by Texas Instruments.
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SNAS163B
- APRIL 2002
- REVISED MAY 2013
350m W Audio Power Amplifier with Shutdown Mode
Check for Samples: LM4818
Features
- 23 SOIC Surface Mount Packaging.
- Switch On/Off Click Suppression.
- Unity-Gain Stable.
- Minimum External ponents.
APPLICATIONS
- General Purpose Audio
- Portable Electronic Devices
- Information Appliances (IA)
KEY SPECIFICATIONS
- THD+N at 1k Hz, 350m W Continuous Average Output Power into 16Ω 10% (max)
- THD+N at 1k Hz, 300m W Continuous Average Output Power into 8Ω 10% (max)
- Shutdown Current 0.7µA (typ)
DESCRIPTION
The LM4818 is a mono bridged power amplifier that is capable of delivering 350m WRMS output power into a 16Ω load or 300m WRMS output power into an 8Ω load with 10% THD+N from a 5V power supply.
The LM4818 Boomer™ audio power amplifier is designed specifically to provide high quality output power and minimize PCB area with surface mount packaging and a minimal amount of external ponents. Since the LM4818 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications.
The closed loop response of the unity-gain stable LM4818 can be configured using external gain-setting resistors. The device is available in SOIC package type to suit various applications.
Typical Application
Figure 1. Typical Audio Amplifier Application Circuit
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Boomer is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
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