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LM4900

Texas Instruments
Part Number LM4900
Manufacturer Texas Instruments
Description Audio Power Amplifier
Published Aug 22, 2019
Detailed Description OBSOLETE LM4900 www.ti.com SNAS121D – APRIL 2001 – REVISED APRIL 2013 LM4900 Boomer® Audio Power Amplifier Series 26...
Datasheet PDF File LM4900 PDF File

LM4900
LM4900

Overview
OBSOLETE LM4900 www.
ti.
com SNAS121D – APRIL 2001 – REVISED APRIL 2013 LM4900 Boomer® Audio Power Amplifier Series 265mW at 3.
3V Supply Audio Power Amplifier with Shutdown Mode Check for Samples: LM4900 FEATURES 1 •23 MSOP, LLP, and SOP Packaging • No Output Coupling Capacitors, Bootstrap Capacitors, or Snubber Circuits are Necessary • Thermal Shutdown Protection Circuitry • Unity-gain Stable • External Gain Configuration Capability • Latest Generation "Click and Pop" Suppression Circuitry APPLICATIONS • Cellular Phones • PDA's • Any Portable Audio Application KEY SPECIFICATIONS • THD+N at 1kHz for 265mW Continuous Average Output Power into 8Ω, – VDD = 3.
3V: 1.
0% (max) • THD+N at 1kHz for 675mW Continuous Average Output Power into 8Ω, – VDD = 5V: 1.
0% (max) • Shutdown Current: 0.
1µA (typ) DESCRIPTION The LM4900 is a bridged audio power amplifier capable of delivering 265mW of continuous average power into an 8Ω load with 1% THD+N from a 3.
3V 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 LM4900 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications.
The LM4900 features an externally controlled, low power consumption shutdown mode, and thermal shutdown protection.
The closed loop response of the unity-gain stable LM4900 can be configured by external gain-setting resistors.
1 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 registered trademark of Texas Instruments.
2 All other trademarks are the property of their respective owners.
3 PRODUCTION DATA information is current as of publication date.
Products conform to specifications per ...


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