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LM4819MBD Datasheet Preview

LM4819MBD Datasheet

350mW Audio Power Amplifier

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LM4819, LM4819MBD
www.ti.com
SNAS133D – FEBRUARY 2001 – REVISED MARCH 2013
LM4819
350mW Audio Power Amplifier with Shutdown Mode
Check for Samples: LM4819, LM4819MBD
FEATURES
1
2 WSON, SOIC, and VSSOP Surface Mount
Packaging
• Switch On/Off Click Suppression
• Unity-Gain Stable
• Minimum External Components
KEY SPECIFICATIONS
• THD+N at 1kHz, 350mW Continuous Average
Output Power into 16Ω: 10% (max)
• THD+N at 1kHz, 300mW Continuous Average
Output Power into 8Ω: 10% (max)
• Shutdown Current: 0.7μA (typ)
APPLICATIONS
• General Purpose Audio
• Portable Electronic Devices
• Information Appliances (IA)
DESCRIPTION
The LM4819 is a mono bridged power amplifier that
is capable of delivering 350mWRMS output power into
a 16load or 300mWRMS output power into an 8
load with 10% THD+N from a 5V power supply.
The LM4819 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
components. Since the LM4819 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
LM4819 can be configured using external gain-setting
resistors. The device is available in WSON, VSSOP,
and SOIC package types to suit various applications.
Typical Application
Figure 1. Typical Audio Amplifier Application Circuit
Connection Diagrams
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.
All trademarks are the property of their respective owners.
2
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.
Copyright © 2001–2013, Texas Instruments Incorporated




etcTI

LM4819MBD Datasheet Preview

LM4819MBD Datasheet

350mW Audio Power Amplifier

No Preview Available !

LM4819, LM4819MBD
SNAS133D – FEBRUARY 2001 – REVISED MARCH 2013
Top View
Top View
www.ti.com
Figure 2. Small Outline (SOIC) Package
See Package Number D0008A
Figure 3. Mini Small Outline (VSSOP) Package
See Package Number DGK0008A
Top View
Figure 4. WSON Package
See Package Number NGL0008B
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
2
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Copyright © 2001–2013, Texas Instruments Incorporated
Product Folder Links: LM4819 LM4819MBD



Part Number LM4819MBD
Description 350mW Audio Power Amplifier
Maker etcTI
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